diff --git a/.linkcheck.json b/.linkcheck.json
index a50ce5822..64e9bd1cc 100644
--- a/.linkcheck.json
+++ b/.linkcheck.json
@@ -18,6 +18,7 @@
         { "pattern": "^https://mozilla.udemy.com" },
         { "pattern": "^https://sso.mozilla.com" },
         { "pattern": "^https://experimenter.services.mozilla.com" },
+        { "pattern": "^https://bugzilla.mozilla.org" },
         { "pattern": "^#bigquery-materialized-views$" },
         { "pattern": "^#looker-pdts--aggregate-awareness$" },
         { "pattern": "^#experiment-unpacking$" },
diff --git a/src/concepts/censuses.md b/src/concepts/censuses.md
index dde03b0d0..1b3476cdc 100644
--- a/src/concepts/censuses.md
+++ b/src/concepts/censuses.md
@@ -1,8 +1,6 @@
 ## Legacy Census Metrics
 
-> **⚠** The information in this document is obsolete. This content was originally included in the [Project Smoot existing metrics report][smootv1] (Mozilla internal link).
-
-[smootv1]: https://mozilla-private-report.protosaur.dev/smoot-existing-metrics/book/05_overview.html
+> **⚠** The information in this document is obsolete. This content was originally included in the Project Smoot existing metrics report.
 
 ADI and DAU are oft-discussed censuses. This chapter discusses their history and definition.
 
diff --git a/src/concepts/engagement.md b/src/concepts/engagement.md
index 058b7327d..01f4e4ebd 100644
--- a/src/concepts/engagement.md
+++ b/src/concepts/engagement.md
@@ -1,9 +1,6 @@
 # Engagement metrics
 
-> This section was originally included in the [Project Smoot existing metrics report][smootv1]
-> (Mozilla internal link).
-
-[smootv1]: https://mozilla-private-report.protosaur.dev/smoot-existing-metrics/book/05_overview.html
+> This section was originally included in the Project Smoot existing metrics report.
 
 A handful of metrics have been adopted as engagement metrics, either as
 censuses of the population or to describe user activity within a
diff --git a/src/concepts/history.md b/src/concepts/history.md
index 7efae3ab8..da9bd1a89 100644
--- a/src/concepts/history.md
+++ b/src/concepts/history.md
@@ -1,9 +1,7 @@
 # A brief history of Mozilla data collection
 
-> This section was originally included in the [Project Smoot existing metrics report][smootv1]
-> (Mozilla internal link); the DTMO version has been updated to reflect changes to the data platform.
-
-[smootv1]: https://mozilla-private-report.protosaur.dev/smoot-existing-metrics/book/05_overview.html
+> This section was originally included in the Project Smoot existing metrics report;
+> the DTMO version has been updated to reflect changes to the data platform.
 
 ## `blocklist.xml` and Active Daily Installs (ADI)
 
diff --git a/src/contributing/index.md b/src/contributing/index.md
index 6822abc5a..24677dd9c 100644
--- a/src/contributing/index.md
+++ b/src/contributing/index.md
@@ -41,7 +41,7 @@ to check.
 ## Review
 
 Once you're happy with your contribution, open a pull request (PR). Give your PR a meaningful commit message
-(see [this article on commit message guidelines](https://chris.beams.io/posts/git-commit/) for some suggestions).
+(see [this article on commit message guidelines](https://cbea.ms/git-commit) for some suggestions).
 If there is a bug associated with your documentation, title it in the form of `Bug 1234 - <descriptive one-liner>` - that way, the [Bugzilla PR linker](https://github.com/mozilla/github-bugzilla-pr-linker) will pick up the PR and attach it to the bug.
 
 After filing your PR, assign the appropriate person for review (GitHub will usually provide some suggestions), assuming you have permissions to do so yourself.