diff --git a/.github/contributing.md b/.github/contributing.md
index 808c87bb04aeb4083418bae8df229980a3405f32..589f14581a121d74592ae75d49fb4f9bf00bf7e2 100644
--- a/.github/contributing.md
+++ b/.github/contributing.md
@@ -93,7 +93,7 @@ Before creating a suggestion, please check [this list](#before-submitting-a-sugg
 
 #### Before Submitting a Feature Request
 
-* **Check the [Marlin website](http://marlinfw.org/)** for tips — you might discover that the feature is already included. Most importantly, check if you're using [the latest version of Marlin](https://github.com/MarlinFirmware/Marlin/releases) and if you can get the desired behavior by changing [Marlin's config settings](http://marlinfw.org/docs/configuration/configuration.html).
+* **Check the [Marlin website](https://marlinfw.org/)** for tips — you might discover that the feature is already included. Most importantly, check if you're using [the latest version of Marlin](https://github.com/MarlinFirmware/Marlin/releases) and if you can get the desired behavior by changing [Marlin's config settings](https://marlinfw.org/docs/configuration/configuration.html).
 * **Perform a [cursory search](https://github.com/MarlinFirmware/Marlin/issues?q=is%3Aissue)** to see if the enhancement has already been suggested. If it has, add a comment to the existing issue instead of opening a new one.
 
 #### How Do I Submit A (Good) Feature Request?
@@ -117,12 +117,12 @@ Unsure where to begin contributing to Marlin? You can start by looking through t
 
 ### Pull Requests
 
-Pull Requests should always be targeted to working branches (e.g., `bugfix-1.1.x` and/or `bugfix-2.0.x`) and never to release branches (e.g., `1.1.x`). If this is your first Pull Request, please read our [Guide to Pull Requests](http://marlinfw.org/docs/development/getting_started_pull_requests.html) and Github's [Pull Request](https://help.github.com/articles/creating-a-pull-request/) documentation.
+Pull Requests should always be targeted to working branches (e.g., `bugfix-1.1.x` and/or `bugfix-2.0.x`) and never to release branches (e.g., `1.1.x`). If this is your first Pull Request, please read our [Guide to Pull Requests](https://marlinfw.org/docs/development/getting_started_pull_requests.html) and Github's [Pull Request](https://help.github.com/articles/creating-a-pull-request/) documentation.
 
 * Fill in [the required template](pull_request_template.md).
 * Don't include issue numbers in the PR title.
 * Include pictures, diagrams, and links to videos in your Pull Request to demonstrate your changes, if needed.
-* Follow the [Coding Standards](http://marlinfw.org/docs/development/coding_standards.html) posted on our website.
+* Follow the [Coding Standards](https://marlinfw.org/docs/development/coding_standards.html) posted on our website.
 * Document new code with clear and concise comments.
 * End all files with a newline.
 
@@ -137,7 +137,7 @@ Pull Requests should always be targeted to working branches (e.g., `bugfix-1.1.x
 
 ### C++ Coding Standards
 
-* Please read and follow the [Coding Standards](http://marlinfw.org/docs/development/coding_standards.html) posted on our website. Failure to follow these guidelines will delay evaluation and acceptance of Pull Requests.
+* Please read and follow the [Coding Standards](https://marlinfw.org/docs/development/coding_standards.html) posted on our website. Failure to follow these guidelines will delay evaluation and acceptance of Pull Requests.
 
 ### Documentation
 
diff --git a/Marlin/Configuration.h b/Marlin/Configuration.h
index 175a5fbef302a1b2e297a74a40838cd8f7d063d4..b0a0f8ebb8a0168e95742a0a007b692571b587f6 100644
--- a/Marlin/Configuration.h
+++ b/Marlin/Configuration.h
@@ -820,7 +820,7 @@
 // @section probes
 
 //
-// See http://marlinfw.org/docs/configuration/probes.html
+// See https://marlinfw.org/docs/configuration/probes.html
 //
 
 /**
@@ -1636,7 +1636,7 @@
  *  - Click the controller to view the LCD menu
  *  - The LCD will display Japanese, Western, or Cyrillic text
  *
- * See http://marlinfw.org/docs/development/lcd_language.html
+ * See https://marlinfw.org/docs/development/lcd_language.html
  *
  * :['JAPANESE', 'WESTERN', 'CYRILLIC']
  */
diff --git a/Marlin/Configuration_adv.h b/Marlin/Configuration_adv.h
index 82cf3e1949a2ace6f1ce5fec40893e5657f2b273..6cc9f01ffc83c8abd9513bb40041a1ee2349f4c5 100644
--- a/Marlin/Configuration_adv.h
+++ b/Marlin/Configuration_adv.h
@@ -1508,7 +1508,7 @@
  * If this algorithm produces a higher speed offset than the extruder can handle (compared to E jerk)
  * print acceleration will be reduced during the affected moves to keep within the limit.
  *
- * See http://marlinfw.org/docs/features/lin_advance.html for full instructions.
+ * See https://marlinfw.org/docs/features/lin_advance.html for full instructions.
  * Mention @Sebastianv650 on GitHub to alert the author of any issues.
  */
 //#define LIN_ADVANCE
@@ -2643,7 +2643,7 @@
  * You'll need to select a pin for the ON/OFF function and optionally choose a 0-5V
  * hardware PWM pin for the speed control and a pin for the rotation direction.
  *
- * See http://marlinfw.org/docs/configuration/laser_spindle.html for more config details.
+ * See https://marlinfw.org/docs/configuration/laser_spindle.html for more config details.
  */
 //#define SPINDLE_FEATURE
 //#define LASER_FEATURE
diff --git a/Marlin/Marlin.ino b/Marlin/Marlin.ino
index ae5bca1dfed1118b555ff0a89358b8c5f61cc75f..6f8842cc0b25a3cad4ccf04714035adc6c2ce9cc 100644
--- a/Marlin/Marlin.ino
+++ b/Marlin/Marlin.ino
@@ -19,7 +19,7 @@ Before diving in, we recommend the following essential links:
 
 Marlin Firmware Official Website
 
-  - http://marlinfw.org/
+  - https://marlinfw.org/
     The official Marlin Firmware website contains the most up-to-date
     documentation. Contributions are always welcome!
 
@@ -30,7 +30,7 @@ Configuration
     (Applies to Marlin 1.0.x, so Jerk and Acceleration should be halved.)
     Also... https://www.google.com/search?tbs=vid%3A1&q=configure+marlin
 
-  - http://marlinfw.org/docs/configuration/configuration.html
+  - https://marlinfw.org/docs/configuration/configuration.html
     Marlin's configuration options are explained in more detail here.
 
 Getting Help
@@ -45,9 +45,9 @@ Getting Help
 
 Contributing
 
-  - http://marlinfw.org/docs/development/contributing.html
+  - https://marlinfw.org/docs/development/contributing.html
     If you'd like to contribute to Marlin, read this first!
 
-  - http://marlinfw.org/docs/development/coding_standards.html
+  - https://marlinfw.org/docs/development/coding_standards.html
     Before submitting code get to know the Coding Standards.
 */
diff --git a/Marlin/src/core/language.h b/Marlin/src/core/language.h
index a166de59cae63354bf5b4dae83030ee9ec387576..f4205d3f64540f2e2e3ec7c1e51d1a3de6dcd39a 100644
--- a/Marlin/src/core/language.h
+++ b/Marlin/src/core/language.h
@@ -39,7 +39,7 @@
 //
 //   ==> ALWAYS TRY TO COMPILE MARLIN WITH/WITHOUT "ULTIPANEL" / "ULTRA_LCD" / "SDSUPPORT" #define IN "Configuration.h"
 //   ==> ALSO TRY ALL AVAILABLE LANGUAGE OPTIONS
-// See also http://marlinfw.org/docs/development/lcd_language.html
+// See also https://marlinfw.org/docs/development/lcd_language.html
 
 // Languages
 // an         Aragonese
diff --git a/Marlin/src/feature/twibus.h b/Marlin/src/feature/twibus.h
index 2c1b20da5129f14efb2a741f8b6efbb68f19b88d..609693d879c558e363da25438aa737f40ab83cdb 100644
--- a/Marlin/src/feature/twibus.h
+++ b/Marlin/src/feature/twibus.h
@@ -46,8 +46,8 @@ typedef void (*twiRequestFunc_t)();
  * for the host to interpret.
  *
  *  For more information see
- *    - http://marlinfw.org/docs/gcode/M260.html
- *    - http://marlinfw.org/docs/gcode/M261.html
+ *    - https://marlinfw.org/docs/gcode/M260.html
+ *    - https://marlinfw.org/docs/gcode/M261.html
  *
  */
 class TWIBus {
diff --git a/Marlin/src/gcode/gcode.h b/Marlin/src/gcode/gcode.h
index 8e5d054d9995181a67b4eaebbae38422f4c21005..315b080e337231e7e92df7a7ef287e51861c4425 100644
--- a/Marlin/src/gcode/gcode.h
+++ b/Marlin/src/gcode/gcode.h
@@ -31,7 +31,7 @@
  * -----------------
  *
  * Helpful G-code references:
- *  - http://marlinfw.org/meta/gcode
+ *  - https://marlinfw.org/meta/gcode
  *  - https://reprap.org/wiki/G-code
  *  - http://linuxcnc.org/docs/html/gcode.html
  *
diff --git a/Marlin/src/lcd/dogm/dogm_Bootscreen.h b/Marlin/src/lcd/dogm/dogm_Bootscreen.h
index f4bf5f5f692bc1cd35767d841c096bca7fade02a..0d90736c6de0b55c53dcd65459f123760c46b593 100644
--- a/Marlin/src/lcd/dogm/dogm_Bootscreen.h
+++ b/Marlin/src/lcd/dogm/dogm_Bootscreen.h
@@ -25,7 +25,7 @@
  * Standard Marlin Boot Screen bitmaps
  *
  * Use the Marlin Bitmap Converter to make your own:
- * http://marlinfw.org/tools/u8glib/converter.html
+ * https://marlinfw.org/tools/u8glib/converter.html
  */
 
 #include "../../inc/MarlinConfig.h"
diff --git a/Marlin/src/lcd/dogm/dogm_Statusscreen.h b/Marlin/src/lcd/dogm/dogm_Statusscreen.h
index 3384f5798aca322adfe6b4d5f9bec450ff3a3b1b..8295e9e058287e84bc35f470385b101423da3c3e 100644
--- a/Marlin/src/lcd/dogm/dogm_Statusscreen.h
+++ b/Marlin/src/lcd/dogm/dogm_Statusscreen.h
@@ -25,7 +25,7 @@
  * Standard Marlin Status Screen bitmaps
  *
  * Use the Marlin Bitmap Converter to make your own:
- * http://marlinfw.org/tools/u8glib/converter.html
+ * https://marlinfw.org/tools/u8glib/converter.html
  */
 
 #include "../../inc/MarlinConfig.h"
diff --git a/Marlin/src/lcd/dogm/ultralcd_DOGM.cpp b/Marlin/src/lcd/dogm/ultralcd_DOGM.cpp
index 4e07999bf6f620c6b0a0a48e014bc0af2c2a0efa..0a7064f17a16e905770f82fe7e8e49946e6a7434 100644
--- a/Marlin/src/lcd/dogm/ultralcd_DOGM.cpp
+++ b/Marlin/src/lcd/dogm/ultralcd_DOGM.cpp
@@ -65,7 +65,7 @@
 
 /**
  * Include all needed font files
- * (See http://marlinfw.org/docs/development/fonts.html)
+ * (See https://marlinfw.org/docs/development/fonts.html)
  */
 #include "fontdata/fontdata_ISO10646_1.h"
 #if ENABLED(USE_SMALL_INFOFONT)
diff --git a/Marlin/src/lcd/language/language_an.h b/Marlin/src/lcd/language/language_an.h
index 8e7798d72ddbcdb814a97eeb40f356f710fc3cd0..fb2a2277b75446a4ee44fe818ece7710e0b5eb41 100644
--- a/Marlin/src/lcd/language/language_an.h
+++ b/Marlin/src/lcd/language/language_an.h
@@ -25,7 +25,7 @@
  * Aragonese
  *
  * LCD Menu Messages
- * See also http://marlinfw.org/docs/development/lcd_language.html
+ * See also https://marlinfw.org/docs/development/lcd_language.html
  *
  */
 
diff --git a/Marlin/src/lcd/language/language_bg.h b/Marlin/src/lcd/language/language_bg.h
index 1987c207660dc20807cdb6c960259e855a8af886..686cf42514f3985a1eeb24ebd9c70bcac90fc46c 100644
--- a/Marlin/src/lcd/language/language_bg.h
+++ b/Marlin/src/lcd/language/language_bg.h
@@ -25,7 +25,7 @@
  * Bulgarian
  *
  * LCD Menu Messages
- * See also http://marlinfw.org/docs/development/lcd_language.html
+ * See also https://marlinfw.org/docs/development/lcd_language.html
  *
  */
 
diff --git a/Marlin/src/lcd/language/language_ca.h b/Marlin/src/lcd/language/language_ca.h
index ef5334f878e284908ebc5eb3a22e32adff38bfea..6cab7ce1e3c38ab0672743269018191bad4a2570 100644
--- a/Marlin/src/lcd/language/language_ca.h
+++ b/Marlin/src/lcd/language/language_ca.h
@@ -25,7 +25,7 @@
  * Catalan
  *
  * LCD Menu Messages
- * See also http://marlinfw.org/docs/development/lcd_language.html
+ * See also https://marlinfw.org/docs/development/lcd_language.html
  *
  */
 namespace Language_ca {
diff --git a/Marlin/src/lcd/language/language_cz.h b/Marlin/src/lcd/language/language_cz.h
index caa458402ab4fff093fa63d81c15c0472134a8a9..1b800e7bef494e3e43c106139b4733640d22171b 100644
--- a/Marlin/src/lcd/language/language_cz.h
+++ b/Marlin/src/lcd/language/language_cz.h
@@ -26,7 +26,7 @@
  * UTF-8 for Graphical Display
  *
  * LCD Menu Messages
- * See also http://marlinfw.org/docs/development/lcd_language.html
+ * See also https://marlinfw.org/docs/development/lcd_language.html
  *
  * Translated by Petr Zahradnik, Computer Laboratory
  * Blog and video blog Zahradnik se bavi
diff --git a/Marlin/src/lcd/language/language_da.h b/Marlin/src/lcd/language/language_da.h
index 23d931c17419f3e10bb0ec0237ec5437440ffd6e..8ef9f2239cf40958c825e8fa4c7fb96f7bb6d5c1 100644
--- a/Marlin/src/lcd/language/language_da.h
+++ b/Marlin/src/lcd/language/language_da.h
@@ -25,7 +25,7 @@
  * Danish
  *
  * LCD Menu Messages
- * See also http://marlinfw.org/docs/development/lcd_language.html
+ * See also https://marlinfw.org/docs/development/lcd_language.html
  *
  */
 
diff --git a/Marlin/src/lcd/language/language_de.h b/Marlin/src/lcd/language/language_de.h
index aa3f0a5f01b97933fcc51f2dd75057f7d9bf25b8..f31d96728910e9338563606499c5f1a94bcf08f7 100644
--- a/Marlin/src/lcd/language/language_de.h
+++ b/Marlin/src/lcd/language/language_de.h
@@ -25,7 +25,7 @@
  * German
  *
  * LCD Menu Messages
- * See also http://marlinfw.org/docs/development/lcd_language.html
+ * See also https://marlinfw.org/docs/development/lcd_language.html
  *
  */
 
diff --git a/Marlin/src/lcd/language/language_el.h b/Marlin/src/lcd/language/language_el.h
index 6cb177d10806dddd94b21c55395bdd468b8ce25f..1e141548fe9a8e48fe38557e52ac7840e0d28cec 100644
--- a/Marlin/src/lcd/language/language_el.h
+++ b/Marlin/src/lcd/language/language_el.h
@@ -25,7 +25,7 @@
  * Greek
  *
  * LCD Menu Messages
- * See also http://marlinfw.org/docs/development/lcd_language.html
+ * See also https://marlinfw.org/docs/development/lcd_language.html
  *
  */
 
diff --git a/Marlin/src/lcd/language/language_el_gr.h b/Marlin/src/lcd/language/language_el_gr.h
index 5213dc7db92ef7d5e1406d67b72dbd0cba2cbc1f..fc4b80595889dc5f6461e43f0e7e07618db4fc6d 100644
--- a/Marlin/src/lcd/language/language_el_gr.h
+++ b/Marlin/src/lcd/language/language_el_gr.h
@@ -25,7 +25,7 @@
  * Greek (Greece)
  *
  * LCD Menu Messages
- * See also http://marlinfw.org/docs/development/lcd_language.html
+ * See also https://marlinfw.org/docs/development/lcd_language.html
  *
  */
 
diff --git a/Marlin/src/lcd/language/language_en.h b/Marlin/src/lcd/language/language_en.h
index f9a9671bb214dcbcc10b05111055150ff82d7b88..f2be60c72dd635ff24bf4616a0dc8dbe5b277f98 100644
--- a/Marlin/src/lcd/language/language_en.h
+++ b/Marlin/src/lcd/language/language_en.h
@@ -25,7 +25,7 @@
  * English
  *
  * LCD Menu Messages
- * See also http://marlinfw.org/docs/development/lcd_language.html
+ * See also https://marlinfw.org/docs/development/lcd_language.html
  *
  */
 
diff --git a/Marlin/src/lcd/language/language_es.h b/Marlin/src/lcd/language/language_es.h
index f3a0a353d33e176592e97a5b615bcf8b670a3bb8..6bc2525f19a2e388376a947d22ceeb61501669f8 100644
--- a/Marlin/src/lcd/language/language_es.h
+++ b/Marlin/src/lcd/language/language_es.h
@@ -25,7 +25,7 @@
  * Spanish
  *
  * LCD Menu Messages
- * See also http://marlinfw.org/docs/development/lcd_language.html
+ * See also https://marlinfw.org/docs/development/lcd_language.html
  *
  */
 
diff --git a/Marlin/src/lcd/language/language_eu.h b/Marlin/src/lcd/language/language_eu.h
index a6a0a52518c950c4c4d815cc44190c3a3f225d31..32c6e0f001b263a16a02aaecbb907bce5826fa18 100644
--- a/Marlin/src/lcd/language/language_eu.h
+++ b/Marlin/src/lcd/language/language_eu.h
@@ -25,7 +25,7 @@
  * Basque-Euskera
  *
  * LCD Menu Messages
- * See also http://marlinfw.org/docs/development/lcd_language.html
+ * See also https://marlinfw.org/docs/development/lcd_language.html
  *
  */
 
diff --git a/Marlin/src/lcd/language/language_fi.h b/Marlin/src/lcd/language/language_fi.h
index 79124c000770b9858d9c27c3027cfdd657846075..0259767875763b7b8918e660728d809c36ec81ee 100644
--- a/Marlin/src/lcd/language/language_fi.h
+++ b/Marlin/src/lcd/language/language_fi.h
@@ -25,7 +25,7 @@
  * Finnish
  *
  * LCD Menu Messages
- * See also http://marlinfw.org/docs/development/lcd_language.html
+ * See also https://marlinfw.org/docs/development/lcd_language.html
  *
  */
 
diff --git a/Marlin/src/lcd/language/language_fr.h b/Marlin/src/lcd/language/language_fr.h
index 6196f40c644641f2884ef783365c758c5a233970..2b853927c7770dfe2fdd649aaa79f321e891c042 100644
--- a/Marlin/src/lcd/language/language_fr.h
+++ b/Marlin/src/lcd/language/language_fr.h
@@ -25,7 +25,7 @@
  * French
  *
  * LCD Menu Messages
- * See also http://marlinfw.org/docs/development/lcd_language.html
+ * See also https://marlinfw.org/docs/development/lcd_language.html
  *
  */
 
diff --git a/Marlin/src/lcd/language/language_gl.h b/Marlin/src/lcd/language/language_gl.h
index d9d07f8ec2f771153e1355a36388237775eeabeb..d1eac052f93894bb01bb6486eee6daba7103c83c 100644
--- a/Marlin/src/lcd/language/language_gl.h
+++ b/Marlin/src/lcd/language/language_gl.h
@@ -25,7 +25,7 @@
  * Galician language (ISO "gl")
  *
  * LCD Menu Messages
- * See also http://marlinfw.org/docs/development/lcd_language.html
+ * See also https://marlinfw.org/docs/development/lcd_language.html
  *
  */
 
diff --git a/Marlin/src/lcd/language/language_hr.h b/Marlin/src/lcd/language/language_hr.h
index 740d7e56259987ed78bb42acc3d27ffbc4e3074e..8b98de5818ea62c3cc627306ca9a0234a2c26ce8 100644
--- a/Marlin/src/lcd/language/language_hr.h
+++ b/Marlin/src/lcd/language/language_hr.h
@@ -25,7 +25,7 @@
  * Croatian (Hrvatski)
  *
  * LCD Menu Messages
- * See also http://marlinfw.org/docs/development/lcd_language.html
+ * See also https://marlinfw.org/docs/development/lcd_language.html
  *
  */
 
diff --git a/Marlin/src/lcd/language/language_it.h b/Marlin/src/lcd/language/language_it.h
index 84438f2847cf203f1cd01a72afa0f9cddc830f05..5e29d4b0510545e5bf0748459acc35e385ea344e 100644
--- a/Marlin/src/lcd/language/language_it.h
+++ b/Marlin/src/lcd/language/language_it.h
@@ -25,7 +25,7 @@
  * Italian
  *
  * LCD Menu Messages
- * See also http://marlinfw.org/docs/development/lcd_language.html
+ * See also https://marlinfw.org/docs/development/lcd_language.html
  *
  */
 
diff --git a/Marlin/src/lcd/language/language_jp_kana.h b/Marlin/src/lcd/language/language_jp_kana.h
index 809ee83de8b355ebe81897cdf7a6dfee5c8efe41..ce594f7c227598efed14e484036dd7e21e226949 100644
--- a/Marlin/src/lcd/language/language_jp_kana.h
+++ b/Marlin/src/lcd/language/language_jp_kana.h
@@ -26,7 +26,7 @@
  * UTF-8 for Graphical Display
  *
  * LCD Menu Messages
- * See also http://marlinfw.org/docs/development/lcd_language.html
+ * See also https://marlinfw.org/docs/development/lcd_language.html
  *
  */
 
diff --git a/Marlin/src/lcd/language/language_ko_KR.h b/Marlin/src/lcd/language/language_ko_KR.h
index 4d8142e38bae7ac8918709df7801697b932001e9..344e8243acc31b1ec92441ed8cfe11dd00344d8d 100644
--- a/Marlin/src/lcd/language/language_ko_KR.h
+++ b/Marlin/src/lcd/language/language_ko_KR.h
@@ -25,7 +25,7 @@
  * Korean
  *
  * LCD Menu Messages
- * See also http://marlinfw.org/docs/development/lcd_language.html
+ * See also https://marlinfw.org/docs/development/lcd_language.html
  *
  */
 namespace Language_ko_KR {
diff --git a/Marlin/src/lcd/language/language_nl.h b/Marlin/src/lcd/language/language_nl.h
index d5d46ecfe6aae3f70c1ab40985d2552417358e40..a87f6cda2fb067bc44b7cd5b95ac58ff21caae38 100644
--- a/Marlin/src/lcd/language/language_nl.h
+++ b/Marlin/src/lcd/language/language_nl.h
@@ -25,7 +25,7 @@
  * Dutch
  *
  * LCD Menu Messages
- * See also http://marlinfw.org/docs/development/lcd_language.html
+ * See also https://marlinfw.org/docs/development/lcd_language.html
  *
  */
 
diff --git a/Marlin/src/lcd/language/language_pl.h b/Marlin/src/lcd/language/language_pl.h
index 469bed05b12207e476b735d2b611d6e2b403f15d..88b3295a23da9b916bc6b8c30ef2a1dc91239878 100644
--- a/Marlin/src/lcd/language/language_pl.h
+++ b/Marlin/src/lcd/language/language_pl.h
@@ -25,7 +25,7 @@
  * Polish - includes accented characters
  *
  * LCD Menu Messages
- * See also http://marlinfw.org/docs/development/lcd_language.html
+ * See also https://marlinfw.org/docs/development/lcd_language.html
  *
  */
 
diff --git a/Marlin/src/lcd/language/language_pt.h b/Marlin/src/lcd/language/language_pt.h
index 69c8be603fdcf0e878b3cc526ca97614d3b4447e..412c3256af3b8299c748e78d381f3ec8c163eda2 100644
--- a/Marlin/src/lcd/language/language_pt.h
+++ b/Marlin/src/lcd/language/language_pt.h
@@ -26,7 +26,7 @@
  * UTF-8 for Graphical Display
  *
  * LCD Menu Messages
- * See also http://marlinfw.org/docs/development/lcd_language.html
+ * See also https://marlinfw.org/docs/development/lcd_language.html
  *
  */
 
diff --git a/Marlin/src/lcd/language/language_pt_br.h b/Marlin/src/lcd/language/language_pt_br.h
index 8fd771ab05324ff2c37a1abe7fc22f0ca19c7317..1272e2200c703929d3b71b67c6293762a2d21f95 100644
--- a/Marlin/src/lcd/language/language_pt_br.h
+++ b/Marlin/src/lcd/language/language_pt_br.h
@@ -26,7 +26,7 @@
  * UTF-8 for Graphical Display
  *
  * LCD Menu Messages
- * See also http://marlinfw.org/docs/development/lcd_language.html
+ * See also https://marlinfw.org/docs/development/lcd_language.html
  *
  */
 namespace Language_pt_br {
diff --git a/Marlin/src/lcd/language/language_ru.h b/Marlin/src/lcd/language/language_ru.h
index 8d2a722b19e87d8699e093a7c4378b0dab6d69a9..34eea736bebea8b5bf4c643230f36d1f88970c4d 100644
--- a/Marlin/src/lcd/language/language_ru.h
+++ b/Marlin/src/lcd/language/language_ru.h
@@ -25,7 +25,7 @@
  * Russian
  *
  * LCD Menu Messages
- * See also http://marlinfw.org/docs/development/lcd_language.html
+ * See also https://marlinfw.org/docs/development/lcd_language.html
  *
  */
 #define DISPLAY_CHARSET_ISO10646_5
diff --git a/Marlin/src/lcd/language/language_sk.h b/Marlin/src/lcd/language/language_sk.h
index 6f7707421ee174550ce7cf5d121f9af8cd5f0966..16854dcd59f393f767fc261955aeaa5876345ab4 100644
--- a/Marlin/src/lcd/language/language_sk.h
+++ b/Marlin/src/lcd/language/language_sk.h
@@ -26,7 +26,7 @@
  * UTF-8 for Graphical Display
  *
  * LCD Menu Messages
- * See also http://marlinfw.org/docs/development/lcd_language.html
+ * See also https://marlinfw.org/docs/development/lcd_language.html
  *
  * Translated by Michal Holeš, Farma MaM
  * http://www.facebook.com/farmamam
diff --git a/Marlin/src/lcd/language/language_test.h b/Marlin/src/lcd/language/language_test.h
index 465d3743f3aad77464f397d9d44b31c3931d6c2b..147379f5bd48fd1b28631abcb6bbd2d0a3808b8f 100644
--- a/Marlin/src/lcd/language/language_test.h
+++ b/Marlin/src/lcd/language/language_test.h
@@ -25,7 +25,7 @@
  * TEST
  *
  * LCD Menu Messages
- * See also http://marlinfw.org/docs/development/lcd_language.html
+ * See also https://marlinfw.org/docs/development/lcd_language.html
  *
  */
 
diff --git a/Marlin/src/lcd/language/language_tr.h b/Marlin/src/lcd/language/language_tr.h
index 7db359290257f4422367164628bd9ba4c0d4d756..d847d5496f12adffbb38ebe799f75d0a0a88e307 100644
--- a/Marlin/src/lcd/language/language_tr.h
+++ b/Marlin/src/lcd/language/language_tr.h
@@ -25,7 +25,7 @@
  * Turkish
  *
  * LCD Menu Messages
- * See also http://marlinfw.org/docs/development/lcd_language.html
+ * See also https://marlinfw.org/docs/development/lcd_language.html
  *
  * Bu çeviri dosyasındaki sorunlar ve düzeltmeler için iletişim;
  * Contact for issues and corrections in this translation file;
diff --git a/Marlin/src/lcd/language/language_uk.h b/Marlin/src/lcd/language/language_uk.h
index 0d473bf0af642ed0770c854d2a04ba667cca777d..44f3401d6ede50d841d3af848b51c56312616eaf 100644
--- a/Marlin/src/lcd/language/language_uk.h
+++ b/Marlin/src/lcd/language/language_uk.h
@@ -25,7 +25,7 @@
  * Ukrainian
  *
  * LCD Menu Messages
- * See also http://marlinfw.org/docs/development/lcd_language.html
+ * See also https://marlinfw.org/docs/development/lcd_language.html
  *
  */
 
diff --git a/Marlin/src/lcd/language/language_vi.h b/Marlin/src/lcd/language/language_vi.h
index 8d13fdb194ea323df260f7e53f5e54073de665f6..dc90e85ce2c548c0a12447f64957d5e59784621f 100644
--- a/Marlin/src/lcd/language/language_vi.h
+++ b/Marlin/src/lcd/language/language_vi.h
@@ -25,7 +25,7 @@
  * Vietnamese
  *
  * LCD Menu Messages
- * See also http://marlinfw.org/docs/development/lcd_language.html
+ * See also https://marlinfw.org/docs/development/lcd_language.html
  *
  */
 namespace Language_vi {
diff --git a/Marlin/src/lcd/language/language_zh_CN.h b/Marlin/src/lcd/language/language_zh_CN.h
index 0207c47baa12c07130f5f489546fea5a95e2f4cc..48bcfc0819dae86aadf5355fba53e99fe59f938a 100644
--- a/Marlin/src/lcd/language/language_zh_CN.h
+++ b/Marlin/src/lcd/language/language_zh_CN.h
@@ -25,7 +25,7 @@
  * Simplified Chinese
  *
  * LCD Menu Messages
- * See also http://marlinfw.org/docs/development/lcd_language.html
+ * See also https://marlinfw.org/docs/development/lcd_language.html
  *
  */
 namespace Language_zh_CN {
diff --git a/Marlin/src/lcd/language/language_zh_TW.h b/Marlin/src/lcd/language/language_zh_TW.h
index a0812a89f337d155b6256704615e48382ae82321..53e40bbab8d01da55076d3df7e6eafb67f3ee598 100644
--- a/Marlin/src/lcd/language/language_zh_TW.h
+++ b/Marlin/src/lcd/language/language_zh_TW.h
@@ -25,7 +25,7 @@
  * Traditional Chinese
  *
  * LCD Menu Messages
- * See also http://marlinfw.org/docs/development/lcd_language.html
+ * See also https://marlinfw.org/docs/development/lcd_language.html
  *
  */
 namespace Language_zh_TW {
diff --git a/README.md b/README.md
index ffb3de097d687a7107343a044ed8b87166f947c7..6011d5e2436a99ccab28110f2a87e69f5776a75b 100644
--- a/README.md
+++ b/README.md
@@ -7,7 +7,7 @@
 
 <img align="right" width=175 src="buildroot/share/pixmaps/logo/marlin-250.png" />
 
-Additional documentation can be found at the [Marlin Home Page](http://marlinfw.org/).
+Additional documentation can be found at the [Marlin Home Page](https://marlinfw.org/).
 Please test this firmware and let us know if it misbehaves in any way. Volunteers are standing by!
 
 ## Marlin 2.0 Bugfix Branch
@@ -22,7 +22,7 @@ Download earlier versions of Marlin on the [Releases page](https://github.com/Ma
 
 ## Building Marlin 2.0
 
-To build Marlin 2.0 you'll need [Arduino IDE 1.8.8 or newer](https://www.arduino.cc/en/main/software) or [PlatformIO](http://docs.platformio.org/en/latest/ide.html#platformio-ide). We've posted detailed instructions on [Building Marlin with Arduino](http://marlinfw.org/docs/basics/install_arduino.html) and [Building Marlin with PlatformIO for ReArm](http://marlinfw.org/docs/basics/install_rearm.html) (which applies well to other 32-bit boards).
+To build Marlin 2.0 you'll need [Arduino IDE 1.8.8 or newer](https://www.arduino.cc/en/main/software) or [PlatformIO](http://docs.platformio.org/en/latest/ide.html#platformio-ide). We've posted detailed instructions on [Building Marlin with Arduino](https://marlinfw.org/docs/basics/install_arduino.html) and [Building Marlin with PlatformIO for ReArm](https://marlinfw.org/docs/basics/install_rearm.html) (which applies well to other 32-bit boards).
 
 ## Hardware Abstraction Layer (HAL)
 
@@ -95,7 +95,7 @@ Marlin 2.0 introduces a layer of abstraction so that all the existing high-level
 Proposed patches should be submitted as a Pull Request against the ([bugfix-2.0.x](https://github.com/MarlinFirmware/Marlin/tree/bugfix-2.0.x)) branch.
 
 - This branch is for fixing bugs and integrating any new features for the duration of the Marlin 2.0.x life-cycle.
-- Follow the [Coding Standards](http://marlinfw.org/docs/development/coding_standards.html) to gain points with the maintainers.
+- Follow the [Coding Standards](https://marlinfw.org/docs/development/coding_standards.html) to gain points with the maintainers.
 - Please submit your questions and concerns to the [Issue Queue](https://github.com/MarlinFirmware/Marlin/issues).
 
 ### [RepRap.org Wiki Page](http://reprap.org/wiki/Marlin)
diff --git a/buildroot/share/fonts/uxggenpages.md b/buildroot/share/fonts/uxggenpages.md
index 314b5d5c06c3b65fd01dcd6c0b544f25de83f8b4..c2d94735c70919f60662e792850e28e844e000dd 100644
--- a/buildroot/share/fonts/uxggenpages.md
+++ b/buildroot/share/fonts/uxggenpages.md
@@ -104,7 +104,7 @@ At this time, the font file `marlin-6x12-3.bdf` is used to generate the font dat
 Documents related to the old version of the language engine:
 
 - [Marlin Fonts Documentation](http://www.marlinfw.org/docs/development/fonts.html)
-- [Marlin LCD Language](http://marlinfw.org/docs/development/lcd_language.html)
+- [Marlin LCD Language](https://marlinfw.org/docs/development/lcd_language.html)
 - [U8GLIB](https://github.com/olikraus/u8glib.git)
 - [UTF-8 for U8GLIB](https://github.com/yhfudev/u8glib-fontutf8.git)
 - [Standalone test project for the Marlin UTF-8 language engine](https://github.com/yhfudev/marlin-fontutf8.git)
diff --git a/buildroot/share/git/mfpub b/buildroot/share/git/mfpub
index 53911d6d4e45d8af6670c5133d5fe521c77db4c6..ab43b70672ce86aab43e12cf0b19b9498a2c3d4d 100755
--- a/buildroot/share/git/mfpub
+++ b/buildroot/share/git/mfpub
@@ -126,7 +126,7 @@ git push -f origin
 git push -f upstream | {
   while IFS= read -r line
   do
-    [[ $line =~ "gh-pages -> gh-pages" ]] && opensite "http://marlinfw.org/"
+    [[ $line =~ "gh-pages -> gh-pages" ]] && opensite "https://marlinfw.org/"
     echo "$line"
   done
 }