diff --git a/404.html b/404.html
index 0162e3b..d59f593 100644
--- a/404.html
+++ b/404.html
@@ -5,4 +5,4 @@
 2016 -
 2024
 Eric X. Liu
-<a href="https://git.ericxliu.me/eric/ericxliu-me/commit/53dd776">[53dd776]</a></section></footer></main><script src=/js/coder.min.6ae284be93d2d19dad1f02b0039508d9aab3180a12a06dcc71b0b0ef7825a317.js integrity="sha256-auKEvpPS0Z2tHwKwA5UI2aqzGAoSoG3McbCw73gloxc="></script></body></html>
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+<a href="https://git.ericxliu.me/eric/ericxliu-me/commit/b146b01">[b146b01]</a></section></footer></main><script src=/js/coder.min.6ae284be93d2d19dad1f02b0039508d9aab3180a12a06dcc71b0b0ef7825a317.js integrity="sha256-auKEvpPS0Z2tHwKwA5UI2aqzGAoSoG3McbCw73gloxc="></script></body></html>
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diff --git a/about/index.html b/about/index.html
index db77ab8..59cc1a1 100644
--- a/about/index.html
+++ b/about/index.html
@@ -5,4 +5,4 @@
 2016 -
 2024
 Eric X. Liu
-<a href="https://git.ericxliu.me/eric/ericxliu-me/commit/53dd776">[53dd776]</a></section></footer></main><script src=/js/coder.min.6ae284be93d2d19dad1f02b0039508d9aab3180a12a06dcc71b0b0ef7825a317.js integrity="sha256-auKEvpPS0Z2tHwKwA5UI2aqzGAoSoG3McbCw73gloxc="></script></body></html>
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+<a href="https://git.ericxliu.me/eric/ericxliu-me/commit/b146b01">[b146b01]</a></section></footer></main><script src=/js/coder.min.6ae284be93d2d19dad1f02b0039508d9aab3180a12a06dcc71b0b0ef7825a317.js integrity="sha256-auKEvpPS0Z2tHwKwA5UI2aqzGAoSoG3McbCw73gloxc="></script></body></html>
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diff --git a/categories/index.html b/categories/index.html
index ee5459c..eafdd17 100644
--- a/categories/index.html
+++ b/categories/index.html
@@ -5,4 +5,4 @@
 2016 -
 2024
 Eric X. Liu
-<a href="https://git.ericxliu.me/eric/ericxliu-me/commit/53dd776">[53dd776]</a></section></footer></main><script src=/js/coder.min.6ae284be93d2d19dad1f02b0039508d9aab3180a12a06dcc71b0b0ef7825a317.js integrity="sha256-auKEvpPS0Z2tHwKwA5UI2aqzGAoSoG3McbCw73gloxc="></script></body></html>
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+<a href="https://git.ericxliu.me/eric/ericxliu-me/commit/b146b01">[b146b01]</a></section></footer></main><script src=/js/coder.min.6ae284be93d2d19dad1f02b0039508d9aab3180a12a06dcc71b0b0ef7825a317.js integrity="sha256-auKEvpPS0Z2tHwKwA5UI2aqzGAoSoG3McbCw73gloxc="></script></body></html>
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diff --git a/index.html b/index.html
index f11d94c..cf6818a 100644
--- a/index.html
+++ b/index.html
@@ -5,4 +5,4 @@
 2016 -
 2024
 Eric X. Liu
-<a href="https://git.ericxliu.me/eric/ericxliu-me/commit/53dd776">[53dd776]</a></section></footer></main><script src=/js/coder.min.6ae284be93d2d19dad1f02b0039508d9aab3180a12a06dcc71b0b0ef7825a317.js integrity="sha256-auKEvpPS0Z2tHwKwA5UI2aqzGAoSoG3McbCw73gloxc="></script></body></html>
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+<a href="https://git.ericxliu.me/eric/ericxliu-me/commit/b146b01">[b146b01]</a></section></footer></main><script src=/js/coder.min.6ae284be93d2d19dad1f02b0039508d9aab3180a12a06dcc71b0b0ef7825a317.js integrity="sha256-auKEvpPS0Z2tHwKwA5UI2aqzGAoSoG3McbCw73gloxc="></script></body></html>
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diff --git a/posts/index.html b/posts/index.html
index 7b9ab0f..f087e0a 100644
--- a/posts/index.html
+++ b/posts/index.html
@@ -6,4 +6,4 @@
 2016 -
 2024
 Eric X. Liu
-<a href="https://git.ericxliu.me/eric/ericxliu-me/commit/53dd776">[53dd776]</a></section></footer></main><script src=/js/coder.min.6ae284be93d2d19dad1f02b0039508d9aab3180a12a06dcc71b0b0ef7825a317.js integrity="sha256-auKEvpPS0Z2tHwKwA5UI2aqzGAoSoG3McbCw73gloxc="></script></body></html>
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+<a href="https://git.ericxliu.me/eric/ericxliu-me/commit/b146b01">[b146b01]</a></section></footer></main><script src=/js/coder.min.6ae284be93d2d19dad1f02b0039508d9aab3180a12a06dcc71b0b0ef7825a317.js integrity="sha256-auKEvpPS0Z2tHwKwA5UI2aqzGAoSoG3McbCw73gloxc="></script></body></html>
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diff --git a/posts/useful/index.html b/posts/useful/index.html
index e3d31f0..e1f4ef1 100644
--- a/posts/useful/index.html
+++ b/posts/useful/index.html
@@ -11,4 +11,4 @@ One-minute read</span></div></div></header><div class=post-content><ul><li><a hr
 2016 -
 2024
 Eric X. Liu
-<a href="https://git.ericxliu.me/eric/ericxliu-me/commit/53dd776">[53dd776]</a></section></footer></main><script src=/js/coder.min.6ae284be93d2d19dad1f02b0039508d9aab3180a12a06dcc71b0b0ef7825a317.js integrity="sha256-auKEvpPS0Z2tHwKwA5UI2aqzGAoSoG3McbCw73gloxc="></script></body></html>
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+<a href="https://git.ericxliu.me/eric/ericxliu-me/commit/b146b01">[b146b01]</a></section></footer></main><script src=/js/coder.min.6ae284be93d2d19dad1f02b0039508d9aab3180a12a06dcc71b0b0ef7825a317.js integrity="sha256-auKEvpPS0Z2tHwKwA5UI2aqzGAoSoG3McbCw73gloxc="></script></body></html>
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diff --git a/robots.txt b/robots.txt
new file mode 100644
index 0000000..4f9540b
--- /dev/null
+++ b/robots.txt
@@ -0,0 +1 @@
+User-agent: *
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diff --git a/tags/index.html b/tags/index.html
index 2ac0b15..43b1e11 100644
--- a/tags/index.html
+++ b/tags/index.html
@@ -5,4 +5,4 @@
 2016 -
 2024
 Eric X. Liu
-<a href="https://git.ericxliu.me/eric/ericxliu-me/commit/53dd776">[53dd776]</a></section></footer></main><script src=/js/coder.min.6ae284be93d2d19dad1f02b0039508d9aab3180a12a06dcc71b0b0ef7825a317.js integrity="sha256-auKEvpPS0Z2tHwKwA5UI2aqzGAoSoG3McbCw73gloxc="></script></body></html>
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+<a href="https://git.ericxliu.me/eric/ericxliu-me/commit/b146b01">[b146b01]</a></section></footer></main><script src=/js/coder.min.6ae284be93d2d19dad1f02b0039508d9aab3180a12a06dcc71b0b0ef7825a317.js integrity="sha256-auKEvpPS0Z2tHwKwA5UI2aqzGAoSoG3McbCw73gloxc="></script></body></html>
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