diff --git a/mindset/Keep-it-simple.md b/mindset/Keep-it-simple.md
index e95b9f2..ac0c189 100644
--- a/mindset/Keep-it-simple.md
+++ b/mindset/Keep-it-simple.md
@@ -1,6 +1,6 @@
 ---
 description: Some tips for reducing effort and improving results by avoiding needless complexity
-last_modified: 2020-12-24T14:15:34.859Z
+last_modified: 2023-04-09T10:30:02.143Z
 ---
 
 # Keep it simple
@@ -145,7 +145,7 @@ last_modified: 2020-12-24T14:15:34.859Z
 -   [Write Stupid Code](https://thorstenball.com/blog/2015/10/22/write-stupid-code/)
 -   [Less Dirty Code](https://hackernoon.com/less-dirty-code-2c27321g)
 -   [Programming Sucks! Or At Least, It Ought To  - The Daily WTF](https://thedailywtf.com/articles/Programming-Sucks!-Or-At-Least%2C-It-Ought-To-)
--   [The Simplest Thing That Could Possibly Work](http://www.agilenutshell.com/simplest_thing)
+-   [The Simplest Thing That Could Possibly Work](https://web.archive.org/web/20221128180251/http://www.agilenutshell.com/simplest_thing)
 -   [YAGNI](https://martinfowler.com/bliki/Yagni.html)
 -   [Jonathan Blow on solving hard problems](https://www.youtube.com/watch?v=6XAu4EPQRmY) ([transcript](https://old.reddit.com/r/programming/comments/bx8p52/jonathan_blow_on_solving_hard_problems/eq4rl7j/))
 -   [Pareto principle](https://en.wikipedia.org/wiki/Pareto_principle)
diff --git a/processes-techniques/Testing.md b/processes-techniques/Testing.md
index ab12da4..9f19826 100644
--- a/processes-techniques/Testing.md
+++ b/processes-techniques/Testing.md
@@ -1,6 +1,6 @@
 ---
 description: An overview of topics related to testing
-last_modified: 2022-01-02T14:25:32.151Z
+last_modified: 2023-04-09T10:30:02.179Z
 ---
 
 # Testing
@@ -97,7 +97,7 @@ Manual testing and exploration still useful!
 
 ![Modern test pyramid](_img/Testing/test-pyramid.jpg)
 
-([image source](https://alisterbscott.com/kb/testing-pyramids/))
+([image source](https://web.archive.org/web/20221205220536/https://alisterbscott.com/kb/testing-pyramids/))
 
 Basic idea:
 
@@ -299,7 +299,7 @@ Basic process:
 3.  Refactor as needed, with tests as safety net
 4.  Repeat
 
-More detailed example of the process: [Introduction to Test Driven Development (TDD)](https://medium.com/hackernoon/introduction-to-test-driven-development-tdd-61a13bc92d92)
+More detailed example of the process: [Introduction to Test Driven Development (TDD)](https://web.archive.org/web/20220820045410/https://medium.com/hackernoon/introduction-to-test-driven-development-tdd-61a13bc92d92)
 
 Benefits:
 
@@ -609,7 +609,7 @@ Some complementary techniques:
     -   [Exploratory Testing](https://martinfowler.com/bliki/ExploratoryTesting.html)
 -   Building Microservices (book by Sam Newman)
 -   Agile Testing: A Practical Guide for Testers and Agile Teams (book by Lisa Crispin and Janet Gregory)
--   [Testing Pyramids & Ice-Cream Cones](https://alisterbscott.com/kb/testing-pyramids/)
+-   [Testing Pyramids & Ice-Cream Cones](https://web.archive.org/web/20221205220536/https://alisterbscott.com/kb/testing-pyramids/)
 -   [Testing Behavior vs. Testing Implementation](https://teamgaslight.com/blog/testing-behavior-vs-testing-implementation)
--   [Introduction to Test Driven Development (TDD)](https://medium.com/hackernoon/introduction-to-test-driven-development-tdd-61a13bc92d92)
+-   [Introduction to Test Driven Development (TDD)](https://web.archive.org/web/20220820045410/https://medium.com/hackernoon/introduction-to-test-driven-development-tdd-61a13bc92d92)
 -   [TDD Changed My Life](https://medium.com/javascript-scene/tdd-changed-my-life-5af0ce099f80)