diff --git a/CHANGELOG.md b/CHANGELOG.md
index dac812d3..5810f500 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -23,6 +23,8 @@
 - Fix `zola serve` not picking up directory renaming
 - Add `path` to the taxonomy terms to be on par with pages and sections
 - Add the `base16-aterlierdune-light` syntax highlight theme
+- Improve link checking: less concurrency and try to not overload the servers
+- Allow using POST for `load_data`, along with a body to POST
 
 ## 0.13.0 (2021-01-09)
 
diff --git a/Cargo.lock b/Cargo.lock
index b7984b7e..00698a16 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -65,11 +65,10 @@ checksum = "23b62fc65de8e4e7f52534fb52b0f3ed04746ae267519eef2a83941e8085068b"
 
 [[package]]
 name = "assert-json-diff"
-version = "1.1.0"
+version = "2.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4259cbe96513d2f1073027a259fc2ca917feb3026a5a8d984e3628e490255cc0"
+checksum = "50f1c3703dd33532d7f0ca049168930e9099ecac238e23cf932f3a69c42f06da"
 dependencies = [
- "extend",
  "serde",
  "serde_json",
 ]
@@ -99,11 +98,10 @@ checksum = "904dfeac50f3cdaba28fc6f57fdcddb75f49ed61346676a78c4ffe55877802fd"
 
 [[package]]
 name = "bincode"
-version = "1.3.1"
+version = "1.3.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f30d3a39baa26f9651f17b375061f3233dde33424a8b72b0dbe93a68a0bc896d"
+checksum = "b1f45e9417d87227c7a56d22e471c6206462cba514c7590c09aff4cf6d1ddcad"
 dependencies = [
- "byteorder",
  "serde",
 ]
 
@@ -326,9 +324,9 @@ dependencies = [
 
 [[package]]
 name = "crossbeam-channel"
-version = "0.5.0"
+version = "0.5.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "dca26ee1f8d361640700bde38b2c37d8c22b3ce2d360e1fc1c74ea4b0aa7d775"
+checksum = "06ed27e177f16d65f0f0c22a213e17c696ace5dd64b14258b52f9417ccb52db4"
 dependencies = [
  "cfg-if 1.0.0",
  "crossbeam-utils",
@@ -393,9 +391,9 @@ dependencies = [
 
 [[package]]
 name = "ctrlc"
-version = "3.1.8"
+version = "3.1.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c15b8ec3b5755a188c141c1f6a98e76de31b936209bf066b647979e2a84764a9"
+checksum = "232295399409a8b7ae41276757b5a1cc21032848d42bff2352261f958b3ca29a"
 dependencies = [
  "nix",
  "winapi 0.3.9",
@@ -449,9 +447,9 @@ checksum = "fea41bba32d969b513997752735605054bc0dfa92b4c56bf1189f2e174be7a10"
 
 [[package]]
 name = "dtoa"
-version = "0.4.7"
+version = "0.4.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "88d7ed2934d741c6b37e33e3832298e8850b53fd2d2bea03873375596c7cea4e"
+checksum = "56899898ce76aaf4a0f24d914c97ea6ed976d42fec6ad33fcbb0a1103e07b2b0"
 
 [[package]]
 name = "either"
@@ -461,9 +459,9 @@ checksum = "e78d4f1cc4ae33bbfc157ed5d5a5ef3bc29227303d595861deb238fcec4e9457"
 
 [[package]]
 name = "elasticlunr-rs"
-version = "2.3.10"
+version = "2.3.11"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2956be6157a27c2155b59ea773612cb200ee239b9a510a622cc7274156a38b3e"
+checksum = "959fbc9a6ebced545cbe365fdce5e25c6ab7683f2ca4ecc9fb9d0db663bf73d5"
 dependencies = [
  "jieba-rs",
  "lazy_static",
@@ -560,18 +558,6 @@ dependencies = [
  "toml",
 ]
 
-[[package]]
-name = "extend"
-version = "0.1.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f47da3a72ec598d9c8937a7ebca8962a5c7a1f28444e38c2b33c771ba3f55f05"
-dependencies = [
- "proc-macro-error",
- "proc-macro2",
- "quote",
- "syn",
-]
-
 [[package]]
 name = "fake-simd"
 version = "0.1.2"
@@ -682,30 +668,30 @@ dependencies = [
 
 [[package]]
 name = "futures-channel"
-version = "0.3.13"
+version = "0.3.14"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8c2dd2df839b57db9ab69c2c9d8f3e8c81984781937fe2807dc6dcf3b2ad2939"
+checksum = "ce79c6a52a299137a6013061e0cf0e688fce5d7f1bc60125f520912fdb29ec25"
 dependencies = [
  "futures-core",
 ]
 
 [[package]]
 name = "futures-core"
-version = "0.3.13"
+version = "0.3.14"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "15496a72fabf0e62bdc3df11a59a3787429221dd0710ba8ef163d6f7a9112c94"
+checksum = "098cd1c6dda6ca01650f1a37a794245eb73181d0d4d4e955e2f3c37db7af1815"
 
 [[package]]
 name = "futures-io"
-version = "0.3.13"
+version = "0.3.14"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d71c2c65c57704c32f5241c1223167c2c3294fd34ac020c807ddbe6db287ba59"
+checksum = "365a1a1fb30ea1c03a830fdb2158f5236833ac81fa0ad12fe35b29cddc35cb04"
 
 [[package]]
 name = "futures-macro"
-version = "0.3.13"
+version = "0.3.14"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ea405816a5139fb39af82c2beb921d52143f556038378d6db21183a5c37fbfb7"
+checksum = "668c6733a182cd7deb4f1de7ba3bf2120823835b3bcfbeacf7d2c4a773c1bb8b"
 dependencies = [
  "proc-macro-hack",
  "proc-macro2",
@@ -715,21 +701,21 @@ dependencies = [
 
 [[package]]
 name = "futures-sink"
-version = "0.3.13"
+version = "0.3.14"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "85754d98985841b7d4f5e8e6fbfa4a4ac847916893ec511a2917ccd8525b8bb3"
+checksum = "5c5629433c555de3d82861a7a4e3794a4c40040390907cfbfd7143a92a426c23"
 
 [[package]]
 name = "futures-task"
-version = "0.3.13"
+version = "0.3.14"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fa189ef211c15ee602667a6fcfe1c1fd9e07d42250d2156382820fba33c9df80"
+checksum = "ba7aa51095076f3ba6d9a1f702f74bd05ec65f555d70d2033d55ba8d69f581bc"
 
 [[package]]
 name = "futures-util"
-version = "0.3.13"
+version = "0.3.14"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1812c7ab8aedf8d6f2701a43e1243acdbcc2b36ab26e2ad421eb99ac963d96d1"
+checksum = "3c144ad54d60f23927f0a6b6d816e4271278b64f005ad65e4e35291d2de9c025"
 dependencies = [
  "futures-core",
  "futures-io",
@@ -796,9 +782,9 @@ dependencies = [
 
 [[package]]
 name = "gif"
-version = "0.11.1"
+version = "0.11.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "02efba560f227847cb41463a7395c514d127d4f74fff12ef0137fff1b84b96c4"
+checksum = "5a668f699973d0f573d15749b7002a9ac9e1f9c6b220e7b165601334c173d8de"
 dependencies = [
  "color_quant",
  "weezl",
@@ -836,9 +822,9 @@ dependencies = [
 
 [[package]]
 name = "h2"
-version = "0.3.1"
+version = "0.3.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d832b01df74254fe364568d6ddc294443f61cbec82816b60904303af87efae78"
+checksum = "fc018e188373e2777d0ef2467ebff62a08e66c3f5857b23c8fbec3018210dc00"
 dependencies = [
  "bytes 1.0.1",
  "fnv",
@@ -903,9 +889,9 @@ dependencies = [
 
 [[package]]
 name = "http"
-version = "0.2.3"
+version = "0.2.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7245cd7449cc792608c3c8a9eaf69bd4eabbabf802713748fd739c98b82f0747"
+checksum = "527e8c9ac747e28542699a951517aa9a6945af506cd1f2e1b53a576c17b6cc11"
 dependencies = [
  "bytes 1.0.1",
  "fnv",
@@ -925,9 +911,9 @@ dependencies = [
 
 [[package]]
 name = "httparse"
-version = "1.3.5"
+version = "1.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "615caabe2c3160b313d52ccc905335f4ed5f10881dd63dc5699d47e90be85691"
+checksum = "4a1ce40d6fc9764887c2fdc7305c3dcc429ba11ff981c1509416afd5697e4437"
 
 [[package]]
 name = "httpdate"
@@ -943,9 +929,9 @@ checksum = "b6cab2627acfc432780848602f3f558f7e9dd427352224b0d9324025796d2a5e"
 
 [[package]]
 name = "hyper"
-version = "0.14.4"
+version = "0.14.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e8e946c2b1349055e0b72ae281b238baf1a3ea7307c7e9f9d64673bdd9c26ac7"
+checksum = "8bf09f61b52cfcf4c00de50df88ae423d6c02354e385a86341133b5338630ad1"
 dependencies = [
  "bytes 1.0.1",
  "futures-channel",
@@ -982,9 +968,9 @@ dependencies = [
 
 [[package]]
 name = "idna"
-version = "0.2.2"
+version = "0.2.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "89829a5d69c23d348314a7ac337fe39173b61149a9864deabd260983aed48c21"
+checksum = "418a0a6fab821475f634efe3ccc45c013f742efe03d853e8d3355d5cb850ecf8"
 dependencies = [
  "matches",
  "unicode-bidi",
@@ -1109,9 +1095,9 @@ dependencies = [
 
 [[package]]
 name = "jobserver"
-version = "0.1.21"
+version = "0.1.22"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5c71313ebb9439f74b00d9d2dcec36440beaf57a6aa0623068441dd7cd81a7f2"
+checksum = "972f5ae5d1cb9c6ae417789196c803205313edde988685da5e3aae0827b9e7fd"
 dependencies = [
  "libc",
 ]
@@ -1127,9 +1113,9 @@ dependencies = [
 
 [[package]]
 name = "js-sys"
-version = "0.3.49"
+version = "0.3.50"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "dc15e39392125075f60c95ba416f5381ff6c3a948ff02ab12464715adf56c821"
+checksum = "2d99f9e3e84b8f67f846ef5b4cbbc3b1c29f6c759fcbce6f01aa0e73d932a24c"
 dependencies = [
  "wasm-bindgen",
 ]
@@ -1164,9 +1150,9 @@ checksum = "73a004f877f468548d8d0ac4977456a249d8fabbdb8416c36db163dfc8f2e8ca"
 
 [[package]]
 name = "lexical-core"
-version = "0.7.5"
+version = "0.7.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "21f866863575d0e1d654fbeeabdc927292fdf862873dc3c96c6f753357e13374"
+checksum = "6607c62aa161d23d17a9072cc5da0be67cdfc89d3afb1e8d9c842bebc2525ffe"
 dependencies = [
  "arrayvec",
  "bitflags",
@@ -1186,9 +1172,9 @@ dependencies = [
 
 [[package]]
 name = "libc"
-version = "0.2.90"
+version = "0.2.93"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ba4aede83fc3617411dc6993bc8c70919750c1c257c6ca6a502aed6e0e2394ae"
+checksum = "9385f66bf6105b241aa65a61cb923ef20efc665cb9f9bb50ac2f0c4b7f378d41"
 
 [[package]]
 name = "library"
@@ -1335,16 +1321,13 @@ checksum = "3e2e65a1a2e43cfcb47a895c4c8b10d1f4a61097f9f254f183aee60cad9c651d"
 
 [[package]]
 name = "markup5ever"
-version = "0.10.0"
+version = "0.10.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "aae38d669396ca9b707bfc3db254bc382ddb94f57cc5c235f34623a669a01dab"
+checksum = "a24f40fb03852d1cdd84330cddcaf98e9ec08a7b7768e952fad3b4cf048ec8fd"
 dependencies = [
  "log",
  "phf",
  "phf_codegen",
- "serde",
- "serde_derive",
- "serde_json",
  "string_cache",
  "string_cache_codegen",
  "tendril",
@@ -1376,9 +1359,9 @@ checksum = "0ee1c47aaa256ecabcaea351eae4a9b01ef39ed810004e298d2511ed284b1525"
 
 [[package]]
 name = "memoffset"
-version = "0.6.1"
+version = "0.6.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "157b4208e3059a8f9e78d559edc658e13df41410cb3ae03979c83130067fdd87"
+checksum = "f83fb6581e8ed1f85fd45c116db8405483899489e38406156c25eb743554361d"
 dependencies = [
  "autocfg",
 ]
@@ -1401,9 +1384,9 @@ dependencies = [
 
 [[package]]
 name = "minify-html"
-version = "0.4.3"
+version = "0.4.10"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "36da88423dea166b1506fb795e61294f47bbb09ceaa619a536a8d237bb2c296d"
+checksum = "7fa8fd7a3c8708c45ac106752e7dc157854ebcd4e379ddb0db64fc6c1ef92b6b"
 dependencies = [
  "aho-corasick",
  "lazy_static",
@@ -1450,13 +1433,13 @@ dependencies = [
 
 [[package]]
 name = "mio"
-version = "0.7.10"
+version = "0.7.11"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2182a122f3b7f3f5329cb1972cee089ba2459a0a80a56935e6e674f096f8d839"
+checksum = "cf80d3e903b34e0bd7282b218398aec54e082c840d9baf8339e0080a0c542956"
 dependencies = [
  "libc",
  "log",
- "miow 0.3.6",
+ "miow 0.3.7",
  "ntapi",
  "winapi 0.3.9",
 ]
@@ -1487,19 +1470,18 @@ dependencies = [
 
 [[package]]
 name = "miow"
-version = "0.3.6"
+version = "0.3.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5a33c1b55807fbed163481b5ba66db4b2fa6cde694a5027be10fb724206c5897"
+checksum = "b9f1c5b025cda876f66ef43a113f91ebc9f4ccef34843000e0adf6ebbab84e21"
 dependencies = [
- "socket2",
  "winapi 0.3.9",
 ]
 
 [[package]]
 name = "mockito"
-version = "0.29.0"
+version = "0.30.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "102f0986ade96028c3227fc14fcbbbee0358ca33b3fedc9a400a97a6f5ad4a6e"
+checksum = "d10030163d67f681db11810bc486df3149e6d91c8b4f3f96fa8b62b546c2cef8"
 dependencies = [
  "assert-json-diff",
  "colored",
@@ -1611,9 +1593,9 @@ dependencies = [
 
 [[package]]
 name = "notify"
-version = "4.0.15"
+version = "4.0.16"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "80ae4a7688d1fab81c5bf19c64fc8db920be8d519ce6336ed4e7efe024724dbd"
+checksum = "2599080e87c9bd051ddb11b10074f4da7b1223298df65d4c2ec5bcf309af1533"
 dependencies = [
  "bitflags",
  "filetime",
@@ -1729,9 +1711,9 @@ checksum = "624a8340c38c1b80fd549087862da4ba43e08858af025b236e509b6649fc13d5"
 
 [[package]]
 name = "open"
-version = "1.6.0"
+version = "1.7.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a7e9f1bdf15cd1f5a00cc9002a733a6ee6d0ff562491852d59652471c4a389f7"
+checksum = "1711eb4b31ce4ad35b0f316d8dfba4fe5c7ad601c448446d84aae7a896627b20"
 dependencies = [
  "which",
  "winapi 0.3.9",
@@ -1841,18 +1823,18 @@ dependencies = [
 
 [[package]]
 name = "pin-project"
-version = "1.0.5"
+version = "1.0.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "96fa8ebb90271c4477f144354485b8068bd8f6b78b428b01ba892ca26caf0b63"
+checksum = "c7509cc106041c40a4518d2af7a61530e1eed0e6285296a3d8c5472806ccc4a4"
 dependencies = [
  "pin-project-internal",
 ]
 
 [[package]]
 name = "pin-project-internal"
-version = "1.0.5"
+version = "1.0.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "758669ae3558c6f74bd2a18b41f7ac0b5a195aea6639d6a9b5e5d1ad5ba24c0b"
+checksum = "48c950132583b500556b1efd71d45b319029f2b71518d979fcc208e16b42426f"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -1915,30 +1897,6 @@ version = "0.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "925383efa346730478fb4838dbe9137d2a47675ad789c546d150a6e1dd4ab31c"
 
-[[package]]
-name = "proc-macro-error"
-version = "1.0.4"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "da25490ff9892aab3fcf7c36f08cfb902dd3e71ca0f9f9517bea02a73a5ce38c"
-dependencies = [
- "proc-macro-error-attr",
- "proc-macro2",
- "quote",
- "syn",
- "version_check",
-]
-
-[[package]]
-name = "proc-macro-error-attr"
-version = "1.0.4"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a1be40180e52ecc98ad80b184934baf3d0d29f979574e439af5a55274b35f869"
-dependencies = [
- "proc-macro2",
- "quote",
- "version_check",
-]
-
 [[package]]
 name = "proc-macro-hack"
 version = "0.5.19"
@@ -1953,9 +1911,9 @@ checksum = "bc881b2c22681370c6a780e47af9840ef841837bc98118431d4e1868bd0c1086"
 
 [[package]]
 name = "proc-macro2"
-version = "1.0.24"
+version = "1.0.26"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1e0704ee1a7e00d7bb417d0770ea303c1bccbabf0ef1667dae92b5967f5f8a71"
+checksum = "a152013215dca273577e18d2bf00fa862b89b24169fb78c4c95aeb07992c9cec"
 dependencies = [
  "unicode-xid",
 ]
@@ -2104,9 +2062,9 @@ dependencies = [
 
 [[package]]
 name = "redox_syscall"
-version = "0.2.5"
+version = "0.2.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "94341e4e44e24f6b591b59e47a8a027df12e008d73fd5672dbea9cc22f4507d9"
+checksum = "8270314b5ccceb518e7e578952f0b72b88222d02e8f77f5ecf7abbb673539041"
 dependencies = [
  "bitflags",
 ]
@@ -2182,9 +2140,9 @@ dependencies = [
 
 [[package]]
 name = "reqwest"
-version = "0.11.2"
+version = "0.11.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bf12057f289428dbf5c591c74bf10392e4a8003f993405a902f20117019022d4"
+checksum = "2296f2fac53979e8ccbc4a1136b25dcefd37be9ed7e4a1f6b05a6029c84ff124"
 dependencies = [
  "base64",
  "bytes 1.0.1",
@@ -2251,9 +2209,9 @@ dependencies = [
 
 [[package]]
 name = "rustls"
-version = "0.19.0"
+version = "0.19.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "064fd21ff87c6e87ed4506e68beb42459caa4a0e2eb144932e6776768556980b"
+checksum = "35edb675feee39aec9c99fa5ff985081995a06d594114ae14cbe797ad7b7a6d7"
 dependencies = [
  "base64",
  "log",
@@ -2319,9 +2277,9 @@ checksum = "d29ab0c6d3fc0ee92fe66e2d99f700eab17a8d57d1c1d3b748380fb20baa78cd"
 
 [[package]]
 name = "sct"
-version = "0.6.0"
+version = "0.6.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e3042af939fca8c3453b7af0f1c66e533a15a86169e39de2657310ade8f98d3c"
+checksum = "b362b83898e0e69f38515b82ee15aa80636befe47c3b6d3d89a911e78fc228ce"
 dependencies = [
  "ring",
  "untrusted",
@@ -2341,18 +2299,18 @@ dependencies = [
 
 [[package]]
 name = "serde"
-version = "1.0.124"
+version = "1.0.125"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bd761ff957cb2a45fbb9ab3da6512de9de55872866160b23c25f1a841e99d29f"
+checksum = "558dc50e1a5a5fa7112ca2ce4effcb321b0300c0d4ccf0776a9f60cd89031171"
 dependencies = [
  "serde_derive",
 ]
 
 [[package]]
 name = "serde_derive"
-version = "1.0.124"
+version = "1.0.125"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1800f7693e94e186f5e25a28291ae1570da908aff7d97a095dec1e56ff99069b"
+checksum = "b093b7a2bb58203b5da3056c05b4ec1fed827dcfdb37347a8841695263b3d06d"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -2456,9 +2414,9 @@ dependencies = [
 
 [[package]]
 name = "slab"
-version = "0.4.2"
+version = "0.4.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c111b5bd5695e56cffe5129854aa230b39c93a305372fdbb2668ca2394eea9f8"
+checksum = "f173ac3d1a7e3b28003f40de0b5ce7fe2710f9b9dc3fc38664cebee46b3b6527"
 
 [[package]]
 name = "slotmap"
@@ -2483,11 +2441,10 @@ checksum = "fe0f37c9e8f3c5a4a66ad655a93c74daac4ad00c441533bf5c6e7990bb42604e"
 
 [[package]]
 name = "socket2"
-version = "0.3.19"
+version = "0.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "122e570113d28d773067fab24266b66753f6ea915758651696b6e35e49f88d6e"
+checksum = "9e3dfc207c526015c632472a77be09cf1b6e46866581aecae5cc38fb4235dea2"
 dependencies = [
- "cfg-if 1.0.0",
  "libc",
  "winapi 0.3.9",
 ]
@@ -2567,9 +2524,9 @@ dependencies = [
 
 [[package]]
 name = "syn"
-version = "1.0.64"
+version = "1.0.69"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3fd9d1e9976102a03c542daa2eff1b43f9d72306342f3f8b3ed5fb8908195d6f"
+checksum = "48fe99c6bd8b1cc636890bcc071842de909d902c81ac7dab53ba33c421ab8ffb"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -2650,9 +2607,9 @@ dependencies = [
 
 [[package]]
 name = "tera"
-version = "1.7.0"
+version = "1.7.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5cb278a72e426f291faf182cb0e0cb7d20241e8e9881046724ac874a83c62346"
+checksum = "2617ab2fb1de8587a988a761692e59895438bebf404725d4f2123251f60bf23e"
 dependencies = [
  "chrono",
  "chrono-tz",
@@ -2701,26 +2658,6 @@ dependencies = [
  "unicode-width",
 ]
 
-[[package]]
-name = "thiserror"
-version = "1.0.24"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e0f4a65597094d4483ddaed134f409b2cb7c1beccf25201a9f73c719254fa98e"
-dependencies = [
- "thiserror-impl",
-]
-
-[[package]]
-name = "thiserror-impl"
-version = "1.0.24"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7765189610d8241a44529806d6fd1f2e0a08734313a35d5b3a556f92b381f3c0"
-dependencies = [
- "proc-macro2",
- "quote",
- "syn",
-]
-
 [[package]]
 name = "thread_local"
 version = "1.1.3"
@@ -2759,9 +2696,9 @@ checksum = "29738eedb4388d9ea620eeab9384884fc3f06f586a2eddb56bedc5885126c7c1"
 
 [[package]]
 name = "tinyvec"
-version = "1.1.1"
+version = "1.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "317cca572a0e89c3ce0ca1f1bdc9369547fe318a683418e42ac8f59d14701023"
+checksum = "5b5220f05bb7de7f3f53c7c065e1199b3172696fe2db9f9c4d8ad9b4ee74c342"
 dependencies = [
  "tinyvec_macros",
 ]
@@ -2774,15 +2711,15 @@ checksum = "cda74da7e1a664f795bb1f8a87ec406fb89a02522cf6e50620d016add6dbbf5c"
 
 [[package]]
 name = "tokio"
-version = "1.4.0"
+version = "1.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "134af885d758d645f0f0505c9a8b3f9bf8a348fd822e112ab5248138348f1722"
+checksum = "83f0c8e7c0addab50b663055baf787d0af7f413a46e6e7fb9559a4e4db7137a5"
 dependencies = [
  "autocfg",
  "bytes 1.0.1",
  "libc",
  "memchr",
- "mio 0.7.10",
+ "mio 0.7.11",
  "num_cpus",
  "pin-project-lite",
 ]
@@ -2800,9 +2737,9 @@ dependencies = [
 
 [[package]]
 name = "tokio-util"
-version = "0.6.5"
+version = "0.6.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5143d049e85af7fbc36f5454d990e62c2df705b3589f123b71f441b6b59f443f"
+checksum = "940a12c99365c31ea8dd9ba04ec1be183ffe4920102bb7122c2f515437601e8e"
 dependencies = [
  "bytes 1.0.1",
  "futures-core",
@@ -2944,9 +2881,9 @@ dependencies = [
 
 [[package]]
 name = "unicode-bidi"
-version = "0.3.4"
+version = "0.3.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "49f2bd0c6468a8230e1db229cff8029217cf623c767ea5d60bfbd42729ea54d5"
+checksum = "eeb8be209bb1c96b7c177c7420d26e04eccacb0eeae6b980e35fcb74678107e0"
 dependencies = [
  "matches",
 ]
@@ -2998,9 +2935,9 @@ dependencies = [
 
 [[package]]
 name = "utf-8"
-version = "0.7.5"
+version = "0.7.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "05e42f7c18b8f902290b009cde6d651262f956c98bc51bca4cd1d511c9cd85c7"
+checksum = "09cc8ee72d2a9becf2f2febe0205bbed8fc6615b7cb429ad062dc7b7ddd036a9"
 
 [[package]]
 name = "utf8-ranges"
@@ -3039,9 +2976,9 @@ checksum = "5fecdca9a5291cc2b8dcf7dc02453fee791a280f3743cb0905f8822ae463b3fe"
 
 [[package]]
 name = "walkdir"
-version = "2.3.1"
+version = "2.3.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "777182bc735b6424e1a57516d35ed72cb8019d85c8c9bf536dccb3445c1a2f7d"
+checksum = "808cf2735cd4b6866113f648b791c6adc5714537bc222d9347bb203386ffda56"
 dependencies = [
  "same-file",
  "winapi 0.3.9",
@@ -3072,9 +3009,9 @@ checksum = "fd6fbd9a79829dd1ad0cc20627bf1ed606756a7f77edff7b66b7064f9cb327c6"
 
 [[package]]
 name = "wasm-bindgen"
-version = "0.2.72"
+version = "0.2.73"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8fe8f61dba8e5d645a4d8132dc7a0a66861ed5e1045d2c0ed940fab33bac0fbe"
+checksum = "83240549659d187488f91f33c0f8547cbfef0b2088bc470c116d1d260ef623d9"
 dependencies = [
  "cfg-if 1.0.0",
  "serde",
@@ -3084,9 +3021,9 @@ dependencies = [
 
 [[package]]
 name = "wasm-bindgen-backend"
-version = "0.2.72"
+version = "0.2.73"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "046ceba58ff062da072c7cb4ba5b22a37f00a302483f7e2a6cdc18fedbdc1fd3"
+checksum = "ae70622411ca953215ca6d06d3ebeb1e915f0f6613e3b495122878d7ebec7dae"
 dependencies = [
  "bumpalo",
  "lazy_static",
@@ -3099,9 +3036,9 @@ dependencies = [
 
 [[package]]
 name = "wasm-bindgen-futures"
-version = "0.4.22"
+version = "0.4.23"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "73157efb9af26fb564bb59a009afd1c7c334a44db171d280690d0c3faaec3468"
+checksum = "81b8b767af23de6ac18bf2168b690bed2902743ddf0fb39252e36f9e2bfc63ea"
 dependencies = [
  "cfg-if 1.0.0",
  "js-sys",
@@ -3111,9 +3048,9 @@ dependencies = [
 
 [[package]]
 name = "wasm-bindgen-macro"
-version = "0.2.72"
+version = "0.2.73"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0ef9aa01d36cda046f797c57959ff5f3c615c9cc63997a8d545831ec7976819b"
+checksum = "3e734d91443f177bfdb41969de821e15c516931c3c3db3d318fa1b68975d0f6f"
 dependencies = [
  "quote",
  "wasm-bindgen-macro-support",
@@ -3121,9 +3058,9 @@ dependencies = [
 
 [[package]]
 name = "wasm-bindgen-macro-support"
-version = "0.2.72"
+version = "0.2.73"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "96eb45c1b2ee33545a813a92dbb53856418bf7eb54ab34f7f7ff1448a5b3735d"
+checksum = "d53739ff08c8a68b0fdbcd54c372b8ab800b1449ab3c9d706503bc7dd1621b2c"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -3134,15 +3071,15 @@ dependencies = [
 
 [[package]]
 name = "wasm-bindgen-shared"
-version = "0.2.72"
+version = "0.2.73"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b7148f4696fb4960a346eaa60bbfb42a1ac4ebba21f750f75fc1375b098d5ffa"
+checksum = "d9a543ae66aa233d14bb765ed9af4a33e81b8b58d1584cf1b47ff8cd0b9e4489"
 
 [[package]]
 name = "web-sys"
-version = "0.3.49"
+version = "0.3.50"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "59fe19d70f5dacc03f6e46777213facae5ac3801575d56ca6cbd4c93dcd12310"
+checksum = "a905d57e488fec8861446d3393670fb50d27a262344013181c2cdf9fff5481be"
 dependencies = [
  "js-sys",
  "wasm-bindgen",
@@ -3170,27 +3107,27 @@ dependencies = [
 
 [[package]]
 name = "webpki-roots"
-version = "0.21.0"
+version = "0.21.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "82015b7e0b8bad8185994674a13a93306bea76cf5a16c5a181382fd3a5ec2376"
+checksum = "aabe153544e473b775453675851ecc86863d2a81d786d741f6b76778f2a48940"
 dependencies = [
  "webpki",
 ]
 
 [[package]]
 name = "weezl"
-version = "0.1.4"
+version = "0.1.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4a32b378380f4e9869b22f0b5177c68a5519f03b3454fde0b291455ddbae266c"
+checksum = "d8b77fdfd5a253be4ab714e4ffa3c49caf146b4de743e97510c0656cf90f1e8e"
 
 [[package]]
 name = "which"
-version = "4.0.2"
+version = "4.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "87c14ef7e1b8b8ecfc75d5eca37949410046e66f15d185c01d70824f1f8111ef"
+checksum = "b55551e42cbdf2ce2bedd2203d0cc08dba002c27510f86dab6d0ce304cba3dfe"
 dependencies = [
+ "either",
  "libc",
- "thiserror",
 ]
 
 [[package]]
diff --git a/Cargo.toml b/Cargo.toml
index 6d47846b..068948ff 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -67,3 +67,8 @@ members = [
 [profile.release]
 lto = true
 codegen-units = 1
+
+[profile.dev]
+# Disabling debug info speeds up builds a bunch,
+# and we don't rely on it for debugging that much.
+debug = 0
diff --git a/components/link_checker/Cargo.toml b/components/link_checker/Cargo.toml
index 523484aa..be10bd50 100644
--- a/components/link_checker/Cargo.toml
+++ b/components/link_checker/Cargo.toml
@@ -16,4 +16,4 @@ default-features = false
 features = ["blocking", "rustls-tls"]
 
 [dev-dependencies]
-mockito = "0.29"
+mockito = "0.30"
diff --git a/components/templates/Cargo.toml b/components/templates/Cargo.toml
index 09c112c7..d3e4fe23 100644
--- a/components/templates/Cargo.toml
+++ b/components/templates/Cargo.toml
@@ -30,4 +30,4 @@ default-features = false
 features = ["blocking", "rustls-tls"]
 
 [dev-dependencies]
-mockito = "0.29"
+mockito = "0.30"
diff --git a/components/templates/src/global_fns/load_data.rs b/components/templates/src/global_fns/load_data.rs
index 851b1178..189ce537 100644
--- a/components/templates/src/global_fns/load_data.rs
+++ b/components/templates/src/global_fns/load_data.rs
@@ -126,15 +126,15 @@ impl DataSource {
     fn get_cache_key(
         &self,
         format: &OutputFormat,
-        method_arg: Option<String>,
-        method_post_body: Option<String>,
-        method_post_contenttype: Option<String>,
+        method: Method,
+        post_body: Option<String>,
+        post_content_type: Option<String>,
     ) -> u64 {
         let mut hasher = DefaultHasher::new();
         format.hash(&mut hasher);
-        method_arg.hash(&mut hasher);
-        method_post_body.hash(&mut hasher);
-        method_post_contenttype.hash(&mut hasher);
+        method.hash(&mut hasher);
+        post_body.hash(&mut hasher);
+        post_content_type.hash(&mut hasher);
         self.hash(&mut hasher);
         hasher.finish()
     }
@@ -271,7 +271,7 @@ impl TeraFn for LoadData {
         let file_format = get_output_format_from_args(&args, &data_source)?;
         let cache_key = data_source.get_cache_key(
             &file_format,
-            method_arg,
+            method,
             post_body_arg.clone(),
             post_content_type.clone(),
         );
@@ -300,7 +300,7 @@ impl TeraFn for LoadData {
                                 }
                                 Err(_) => {
                                     return Err(format!(
-                                        "{} is an illegal contenttype",
+                                        "{} is an illegal content type",
                                         &content_type
                                     )
                                     .into());
@@ -484,6 +484,7 @@ mod tests {
     use std::collections::HashMap;
     use std::path::PathBuf;
 
+    use crate::global_fns::load_data::Method;
     use mockito::mock;
     use serde_json::json;
     use tera::{to_value, Function};
@@ -638,47 +639,30 @@ mod tests {
         // We can't test against a fixed value, due to the fact the cache key is built from the absolute path
         let cache_key = DataSource::Path(get_test_file("test.toml")).get_cache_key(
             &OutputFormat::Toml,
-            None,
+            Method::Get,
             None,
             None,
         );
         let cache_key_2 = DataSource::Path(get_test_file("test.toml")).get_cache_key(
             &OutputFormat::Toml,
-            None,
+            Method::Get,
             None,
             None,
         );
         assert_eq!(cache_key, cache_key_2);
     }
 
-    #[test]
-    fn calculates_cache_key_for_url() {
-        let _m = mock("GET", "/kr1zdgbm4y")
-            .with_header("content-type", "text/plain")
-            .with_body("Test")
-            .create();
-
-        let url = format!("{}{}", mockito::server_url(), "/kr1zdgbm4y");
-        let cache_key = DataSource::Url(url.parse().unwrap()).get_cache_key(
-            &OutputFormat::Plain,
-            None,
-            None,
-            None,
-        );
-        assert_eq!(cache_key, 16044537454280534951);
-    }
-
     #[test]
     fn different_cache_key_per_filename() {
         let toml_cache_key = DataSource::Path(get_test_file("test.toml")).get_cache_key(
             &OutputFormat::Toml,
-            None,
+            Method::Get,
             None,
             None,
         );
         let json_cache_key = DataSource::Path(get_test_file("test.json")).get_cache_key(
             &OutputFormat::Toml,
-            None,
+            Method::Get,
             None,
             None,
         );
@@ -689,13 +673,13 @@ mod tests {
     fn different_cache_key_per_format() {
         let toml_cache_key = DataSource::Path(get_test_file("test.toml")).get_cache_key(
             &OutputFormat::Toml,
-            None,
+            Method::Get,
             None,
             None,
         );
         let json_cache_key = DataSource::Path(get_test_file("test.toml")).get_cache_key(
             &OutputFormat::Json,
-            None,
+            Method::Get,
             None,
             None,
         );
@@ -951,7 +935,7 @@ mod tests {
         args.insert("url".to_string(), to_value(&url).unwrap());
         args.insert("format".to_string(), to_value("plain").unwrap());
         args.insert("method".to_string(), to_value("post").unwrap());
-        args.insert("contenttype".to_string(), to_value("text/plain").unwrap());
+        args.insert("content_type".to_string(), to_value("text/plain").unwrap());
         args.insert("body".to_string(), to_value("this is a match").unwrap());
         let result = static_fn.call(&args);
         assert!(result.is_ok());
@@ -960,7 +944,7 @@ mod tests {
         args2.insert("url".to_string(), to_value(&url).unwrap());
         args2.insert("format".to_string(), to_value("plain").unwrap());
         args2.insert("method".to_string(), to_value("post").unwrap());
-        args2.insert("contenttype".to_string(), to_value("text/plain").unwrap());
+        args2.insert("content_type".to_string(), to_value("text/plain").unwrap());
         args2.insert("body".to_string(), to_value("this is a match2").unwrap());
         let result2 = static_fn.call(&args2);
         assert!(result2.is_ok());
@@ -983,7 +967,7 @@ mod tests {
         args.insert("url".to_string(), to_value(&url).unwrap());
         args.insert("format".to_string(), to_value("plain").unwrap());
         args.insert("method".to_string(), to_value("post").unwrap());
-        args.insert("contenttype".to_string(), to_value("text/plain").unwrap());
+        args.insert("content_type".to_string(), to_value("text/plain").unwrap());
         args.insert("body".to_string(), to_value("this is a match").unwrap());
         let result = static_fn.call(&args);
         assert!(result.is_ok());
@@ -992,7 +976,7 @@ mod tests {
         args2.insert("url".to_string(), to_value(&url).unwrap());
         args2.insert("format".to_string(), to_value("plain").unwrap());
         args2.insert("method".to_string(), to_value("post").unwrap());
-        args2.insert("contenttype".to_string(), to_value("text/plain").unwrap());
+        args2.insert("content_type".to_string(), to_value("text/plain").unwrap());
         args2.insert("body".to_string(), to_value("this is a match").unwrap());
         let result2 = static_fn.call(&args2);
         assert!(result2.is_ok());
diff --git a/docs/content/documentation/templates/overview.md b/docs/content/documentation/templates/overview.md
index 166bbad1..db17018d 100644
--- a/docs/content/documentation/templates/overview.md
+++ b/docs/content/documentation/templates/overview.md
@@ -342,9 +342,9 @@ as below.
 When no other parameters are specified the URL will always be retrieved using a HTTP GET request.
 Using the parameter `method`, since version 0.14.0, you can also choose to retrieve the URL using a POST request.
 
-When using `method="POST"` you can also use the parameters `body` and `contenttype`.
+When using `method="POST"` you can also use the parameters `body` and `content_type`.
 The parameter body is the actual contents sent in the POST request.
-The parameter contenttype should be the mimetype of the body.
+The parameter `content_type` should be the mimetype of the body.
 
 This example will make a POST request to the kroki service to generate a SVG.