diff --git a/README.org b/README.org
index d70e009..0584ac4 100644
--- a/README.org
+++ b/README.org
@@ -1,6 +1,6 @@
 #+TITLE: Bootstrappable.org website
 
-Hi there!  This is the code for the [[bootstrappable.org]] website.  It is a static site generated with [[http://haunt.dthompson.us/][Haunt]].
+Hi there!  This is the code for the [[bootstrappable.org]] website.  It is a static site generated with [[https://dthompson.us/projects/haunt.html][Haunt]].
 
 * Hacking
 Here’s how to get Haunt and build the site:
diff --git a/haunt.scm b/haunt.scm
index 4912836..c44c5af 100644
--- a/haunt.scm
+++ b/haunt.scm
@@ -19,7 +19,7 @@
 ;;;
 ;;; You should have received a copy of the Affero General Public
 ;;; License along with these source files.  If not, see
-;;; <http://www.gnu.org/licenses/>.
+;;; <https://www.gnu.org/licenses/>.
 
 ;; This is a build file for Haunt.
 
@@ -124,12 +124,12 @@ place them in the directory DEST."
     (a (@ (href "/who.html"))
        "humans")
     " and powered by "
-    (a (@ (href "https://gnu.org/software/guile"))
+    (a (@ (href "https://www.gnu.org/software/guile/"))
        "GNU Guile") ".  "
-    (a (@ (href "http://git.savannah.gnu.org/cgit/guix/bootstrappable.git/"))
+    (a (@ (href "https://git.savannah.gnu.org/cgit/guix/bootstrappable.git/"))
        "Source code")
     " under the "
-    (a (@ (href "https://gnu.org/licenses/agpl-3.0.html"))
+    (a (@ (href "https://www.gnu.org/licenses/agpl-3.0.html"))
        "GNU AGPL") "."))
 
 (define top-level-titles
diff --git a/index.skr b/index.skr
index af997c1..4037101 100644
--- a/index.skr
+++ b/index.skr
@@ -33,6 +33,6 @@
            (li [,(anchor "What is a coder's worst nightmare?"
                          "https://www.quora.com/What-is-a-coders-worst-nightmare/answer/Mick-Stute")])
            (li [,(anchor "Defending Against Compiler-Based Backdoors"
-                         "http://blog.regehr.org/archives/1241")])
+                         "https://blog.regehr.org/archives/1241")])
            (li [,(anchor "Deniable Backdoors Using Compiler Bugs"
                          "https://www.alchemistowl.org/pocorgtfo/pocorgtfo08.pdf")]))))
diff --git a/notes.org b/notes.org
index 395c00f..c70cb6c 100644
--- a/notes.org
+++ b/notes.org
@@ -15,14 +15,14 @@
 ** Rather than depend on more binary blobs, throw more CPU time at it, e.g. by emulating an x86 CPU with qemu and then work from there.
 ** Need to reach out to compiler developers: make sure that there’s a non-self-hosted path to build the first compiler — find cooperative people in compiler projects to “bootstrap” a bootstrapping project
 ** try to depend only on the smallest C compiler possible
-- e.g. [[http://www.landley.net/code/tinycc/][tinycc]], [[http://pcc.ludd.ltu.se/][pcc]], [[http://www.landley.net/qcc/][qcc]]
+- e.g. [[https://www.landley.net/code/tinycc/][tinycc]], [[http://pcc.ludd.ltu.se/][pcc]], [[https://www.landley.net/qcc/][qcc]]
 - coreboot folks have a simple C compiler RAMCC(?)
-** register http://bootstrappable.org, collect stories there!
+** register https://bootstrappable.org, collect stories there!
 *** motivation: collect examples of backdoored compilers
 - toy example: https://manishearth.github.io/blog/2016/12/02/reflections-on-rusting-trust/
 - ken thompson: reflections on trusting trust
 - "Defending Against Compiler-Based Backdoors"
-http://blog.regehr.org/archives/1241
+https://blog.regehr.org/archives/1241
 - PoC||GTFO
 https://www.alchemistowl.org/pocorgtfo/pocorgtfo08.pdf
 
@@ -110,8 +110,8 @@ simple—it does not need to be optimized.
 
 Examples include:
 
-  - [[https://gnu.org/software/guile][GNU Guile]], a Scheme implementation with a self-hosted compiler,
-    relies on an [[http://git.savannah.gnu.org/cgit/guile.git/tree/libguile/eval.c][Scheme interpreter written in C]] for bootstrapping
+  - [[https://www.gnu.org/software/guile/][GNU Guile]], a Scheme implementation with a self-hosted compiler,
+    relies on an [[https://git.savannah.gnu.org/cgit/guile.git/tree/libguile/eval.c][Scheme interpreter written in C]] for bootstrapping
     purposes.
 
 Please let us know if you’d like to add your compiler to this list!
@@ -125,9 +125,9 @@ provide an alternative way to build your build system.
 
 Examples include:
 
-  - [[https://gnu.org/software/make][GNU Make]] does not require a ‘make’ implementation.  It can be built
-    using a [[http://git.savannah.gnu.org/cgit/make.git/tree/build.template][shell script]].
-  - [[http://ant.apache.org/][Apache Ant]] can bootstrap with a [[https://git-wip-us.apache.org/repos/asf?p=ant.git;a=blob;f=bootstrap.sh;h=60b6ece03ce78716bc036a44226f4934b541f326;hb=HEAD][shell script]]
+  - [[https://www.gnu.org/software/make/][GNU Make]] does not require a ‘make’ implementation.  It can be built
+    using a [[https://git.savannah.gnu.org/cgit/make.git/tree/build.template][shell script]].
+  - [[https://ant.apache.org/][Apache Ant]] can bootstrap with a [[https://git-wip-us.apache.org/repos/asf?p=ant.git;a=blob;f=bootstrap.sh;h=60b6ece03ce78716bc036a44226f4934b541f326;hb=HEAD][shell script]]
     that only relies on the Java compiler.
   - [[https://bazel.build/][Bazel]] does not require Bazel to build itself but
     can be bootstrapped with a [[https://github.com/bazelbuild/bazel/blob/master/compile.sh][shell script]].
@@ -174,7 +174,7 @@ https://upstream-compiler.example.org/upstream-compiler-20161211-x86_64-linux.ta
 TODO: provide an example of how we do this / are going to do this in
 Nixpkgs / Guix / ...?
 
-http://git.savannah.gnu.org/cgit/guix.git/commit/?id=062134985802d85066418f6ee2f327122166a567
+https://git.savannah.gnu.org/cgit/guix.git/commit/?id=062134985802d85066418f6ee2f327122166a567
 
 * Collaboration projects
 
diff --git a/pages/best-practices.skr b/pages/best-practices.skr
index f52e506..eb5f5b4 100644
--- a/pages/best-practices.skr
+++ b/pages/best-practices.skr
@@ -31,7 +31,7 @@
 
        (ul (li [,(anchor "GNU Guile" "https://gnu.org/software/guile"),
                 a Scheme implementation with a self-hosted compiler,
-                relies on a ,(anchor "Scheme interpreter written in C" "http://git.savannah.gnu.org/cgit/guile.git/tree/libguile/eval.c") for bootstrapping purposes.]))
+                relies on a ,(anchor "Scheme interpreter written in C" "https://git.savannah.gnu.org/cgit/guile.git/tree/libguile/eval.c") for bootstrapping purposes.]))
        (p [Please let us know if you’d like to add your compiler to this list!])
 
 
@@ -44,8 +44,8 @@
        (p [Examples include:])
 
        (ul (li [,(anchor "GNU Make" "https://gnu.org/software/make") does not require a ,(code "make") implementation.
-                It can be built using a ,(anchor "shell script" "http://git.savannah.gnu.org/cgit/make.git/tree/build.template").])
-           (li [,(anchor "Apache Ant" "http://ant.apache.org/") can bootstrap with a ,(anchor "shell script" "https://git-wip-us.apache.org/repos/asf?p=ant.git;a=blob;f=bootstrap.sh;h=60b6ece03ce78716bc036a44226f4934b541f326;hb=HEAD") that only relies on the Java compiler.])
+                It can be built using a ,(anchor "shell script" "https://git.savannah.gnu.org/cgit/make.git/tree/build.template").])
+           (li [,(anchor "Apache Ant" "https://ant.apache.org/") can bootstrap with a ,(anchor "shell script" "https://git-wip-us.apache.org/repos/asf?p=ant.git;a=blob;f=bootstrap.sh;h=60b6ece03ce78716bc036a44226f4934b541f326;hb=HEAD") that only relies on the Java compiler.])
            (li [,(anchor "Buck" "https://buckbuild.com/") does not require Buck to build itself.
                 Instead, it can be built using ,(anchor "Ant" "https://github.com/facebook/buck/blob/master/build.xml").]))
 
@@ -75,5 +75,5 @@
 
 ;;TODO: provide an example of how we do this / are going to do this in
 ;; Nixpkgs / Guix / ...?
-;;http://git.savannah.gnu.org/cgit/guix.git/commit/?id=062134985802d85066418f6ee2f327122166a567
+;;https://git.savannah.gnu.org/cgit/guix.git/commit/?id=062134985802d85066418f6ee2f327122166a567
 )
diff --git a/pages/projects.skr b/pages/projects.skr
index 53a4e02..c0801f0 100644
--- a/pages/projects.skr
+++ b/pages/projects.skr
@@ -39,5 +39,5 @@
            It is written in Haskell and since the first public release requires GHC to build newer versions of the compiler.
            It might be possible to build a first GHC from source with the Hugs interpreter and an older version of GHC.
            ,(anchor "This blog post describes a first attempt"
-                    "http://elephly.net/posts/2017-01-09-bootstrapping-haskell-part-1.html")
+                    "https://elephly.net/posts/2017-01-09-bootstrapping-haskell-part-1.html")
            of this project.])))
diff --git a/pages/projects/mes.md b/pages/projects/mes.md
index 437e176..a3373f7 100644
--- a/pages/projects/mes.md
+++ b/pages/projects/mes.md
@@ -37,7 +37,7 @@ GCC is a complex beast and a binary of it is often used to bootstrap
 the whole system.  Version 4.7 is the last version of GCC to not
 require a C++ compiler.  This project aims to build GCC version 4.7
 with a simple C compiler such as
-[TinyCC](http://www.landley.net/code/tinycc/).
+[TinyCC](https://www.landley.net/code/tinycc/).
 
 [Since October
 2019](https://guix.gnu.org/en/blog/2019/guix-reduces-bootstrap-seed-by-50/),