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Hi! I noticed Google Search Console couldn't read the sitemap because of a duplicate XML declaration at the very beginning of the file. I've updated sitemap-generator.js so it no longer prepends a duplicate <?xml...?> declaration. I also tested the updated sitemap locally, and it renders perfectly with a single declaration now. Closes #107fix: remove duplicate XML declaration in sitemap #371

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Hi! I noticed Google Search Console couldn't read the sitemap because of a duplicate XML declaration at the very beginning of the file. I've updated sitemap-generator.js so it no longer prepends a duplicate <?xml...?> declaration. I also tested the updated sitemap locally, and it renders perfectly with a single declaration now. Closes #107fix: remove duplicate XML declaration in sitemap #371

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65 changes: 32 additions & 33 deletions public/sitemap.xml
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Original file line number Diff line number Diff line change
@@ -1,195 +1,194 @@
<?xml version="1.0" encoding="UTF-8"?>
<?xml version="1.0" encoding="UTF-8"?>
<urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">
<url>
<loc>https://physicshub.github.io/</loc>
<lastmod>2026-07-04T00:00:00.000Z</lastmod>
<lastmod>2026-07-15T00:00:00.000Z</lastmod>
<changefreq>weekly</changefreq>
<priority>1.0</priority>
</url>
<url>
<loc>https://physicshub.github.io/contribute</loc>
<lastmod>2026-07-04T00:00:00.000Z</lastmod>
<lastmod>2026-07-15T00:00:00.000Z</lastmod>
<changefreq>monthly</changefreq>
<priority>0.8</priority>
</url>
<url>
<loc>https://physicshub.github.io/simulations</loc>
<lastmod>2026-07-04T00:00:00.000Z</lastmod>
<lastmod>2026-07-15T00:00:00.000Z</lastmod>
<changefreq>weekly</changefreq>
<priority>0.9</priority>
</url>
<url>
<loc>https://physicshub.github.io/about</loc>
<lastmod>2026-07-04T00:00:00.000Z</lastmod>
<lastmod>2026-07-15T00:00:00.000Z</lastmod>
<changefreq>monthly</changefreq>
<priority>0.7</priority>
</url>
<url>
<loc>https://physicshub.github.io/blog</loc>
<lastmod>2026-07-04T00:00:00.000Z</lastmod>
<lastmod>2026-07-15T00:00:00.000Z</lastmod>
<changefreq>weekly</changefreq>
<priority>0.9</priority>
</url>
<url>
<loc>https://physicshub.github.io/blog/create</loc>
<lastmod>2026-07-04T00:00:00.000Z</lastmod>
<lastmod>2026-07-15T00:00:00.000Z</lastmod>
<changefreq>monthly</changefreq>
<priority>0.7</priority>
</url>
<url>
<loc>https://physicshub.github.io/blog/what-is-physics</loc>
<lastmod>2026-07-04T00:00:00.000Z</lastmod>
<lastmod>2026-07-15T00:00:00.000Z</lastmod>
<changefreq>monthly</changefreq>
<priority>0.8</priority>
</url>
<url>
<loc>https://physicshub.github.io/blog/class-12-physics-complete-guide</loc>
<lastmod>2026-07-04T00:00:00.000Z</lastmod>
<lastmod>2026-07-15T00:00:00.000Z</lastmod>
<changefreq>monthly</changefreq>
<priority>0.8</priority>
</url>
<url>
<loc>https://physicshub.github.io/blog/physics-bouncing-ball-comprehensive-educational-guide</loc>
<lastmod>2026-07-04T00:00:00.000Z</lastmod>
<lastmod>2026-07-15T00:00:00.000Z</lastmod>
<changefreq>monthly</changefreq>
<priority>0.8</priority>
</url>
<url>
<loc>https://physicshub.github.io/blog/comprehensive-guide-to-vector-operations</loc>
<lastmod>2026-07-04T00:00:00.000Z</lastmod>
<lastmod>2026-07-15T00:00:00.000Z</lastmod>
<changefreq>monthly</changefreq>
<priority>0.8</priority>
</url>
<url>
<loc>https://physicshub.github.io/blog/ball-uniformly-accelerated-motion</loc>
<lastmod>2026-07-04T00:00:00.000Z</lastmod>
<lastmod>2026-07-15T00:00:00.000Z</lastmod>
<changefreq>monthly</changefreq>
<priority>0.8</priority>
</url>
<url>
<loc>https://physicshub.github.io/blog/ball-free-fall-comprehensive-guide</loc>
<lastmod>2026-07-04T00:00:00.000Z</lastmod>
<lastmod>2026-07-15T00:00:00.000Z</lastmod>
<changefreq>monthly</changefreq>
<priority>0.8</priority>
</url>
<url>
<loc>https://physicshub.github.io/blog/spring-connection</loc>
<lastmod>2026-07-04T00:00:00.000Z</lastmod>
<lastmod>2026-07-15T00:00:00.000Z</lastmod>
<changefreq>monthly</changefreq>
<priority>0.8</priority>
</url>
<url>
<loc>https://physicshub.github.io/blog/physics-of-pendulum-explained</loc>
<lastmod>2026-07-04T00:00:00.000Z</lastmod>
<lastmod>2026-07-15T00:00:00.000Z</lastmod>
<changefreq>monthly</changefreq>
<priority>0.8</priority>
</url>
<url>
<loc>https://physicshub.github.io/blog/projectile-parabolic-motion</loc>
<lastmod>2026-07-04T00:00:00.000Z</lastmod>
<lastmod>2026-07-15T00:00:00.000Z</lastmod>
<changefreq>monthly</changefreq>
<priority>0.8</priority>
</url>
<url>
<loc>https://physicshub.github.io/blog/physics-behind-three-body-problem</loc>
<lastmod>2026-07-04T00:00:00.000Z</lastmod>
<lastmod>2026-07-15T00:00:00.000Z</lastmod>
<changefreq>monthly</changefreq>
<priority>0.8</priority>
</url>
<url>
<loc>https://physicshub.github.io/blog/pi-from-block-collisions-explained</loc>
<lastmod>2026-07-04T00:00:00.000Z</lastmod>
<lastmod>2026-07-15T00:00:00.000Z</lastmod>
<changefreq>monthly</changefreq>
<priority>0.8</priority>
</url>
<url>
<loc>https://physicshub.github.io/simulations/BouncingBall</loc>
<lastmod>2026-07-04T00:00:00.000Z</lastmod>
<lastmod>2026-07-15T00:00:00.000Z</lastmod>
<changefreq>weekly</changefreq>
<priority>0.7</priority>
</url>
<url>
<loc>https://physicshub.github.io/simulations/VectorsOperations</loc>
<lastmod>2026-07-04T00:00:00.000Z</lastmod>
<lastmod>2026-07-15T00:00:00.000Z</lastmod>
<changefreq>weekly</changefreq>
<priority>0.7</priority>
</url>
<url>
<loc>https://physicshub.github.io/simulations/BallAcceleration</loc>
<lastmod>2026-07-04T00:00:00.000Z</lastmod>
<lastmod>2026-07-15T00:00:00.000Z</lastmod>
<changefreq>weekly</changefreq>
<priority>0.7</priority>
</url>
<url>
<loc>https://physicshub.github.io/simulations/BallGravity</loc>
<lastmod>2026-07-04T00:00:00.000Z</lastmod>
<lastmod>2026-07-15T00:00:00.000Z</lastmod>
<changefreq>weekly</changefreq>
<priority>0.7</priority>
</url>
<url>
<loc>https://physicshub.github.io/simulations/SpringConnection</loc>
<lastmod>2026-07-04T00:00:00.000Z</lastmod>
<lastmod>2026-07-15T00:00:00.000Z</lastmod>
<changefreq>weekly</changefreq>
<priority>0.7</priority>
</url>
<url>
<loc>https://physicshub.github.io/simulations/SimplePendulum</loc>
<lastmod>2026-07-04T00:00:00.000Z</lastmod>
<lastmod>2026-07-15T00:00:00.000Z</lastmod>
<changefreq>weekly</changefreq>
<priority>0.7</priority>
</url>
<url>
<loc>https://physicshub.github.io/simulations/ParabolicMotion</loc>
<lastmod>2026-07-04T00:00:00.000Z</lastmod>
<lastmod>2026-07-15T00:00:00.000Z</lastmod>
<changefreq>weekly</changefreq>
<priority>0.7</priority>
</url>
<url>
<loc>https://physicshub.github.io/simulations/InclinedPlane</loc>
<lastmod>2026-07-04T00:00:00.000Z</lastmod>
<lastmod>2026-07-15T00:00:00.000Z</lastmod>
<changefreq>weekly</changefreq>
<priority>0.7</priority>
</url>
<url>
<loc>https://physicshub.github.io/simulations/CircularMotion</loc>
<lastmod>2026-07-04T00:00:00.000Z</lastmod>
<lastmod>2026-07-15T00:00:00.000Z</lastmod>
<changefreq>weekly</changefreq>
<priority>0.7</priority>
</url>
<url>
<loc>https://physicshub.github.io/simulations/ThreeBody</loc>
<lastmod>2026-07-04T00:00:00.000Z</lastmod>
<lastmod>2026-07-15T00:00:00.000Z</lastmod>
<changefreq>weekly</changefreq>
<priority>0.7</priority>
</url>
<url>
<loc>https://physicshub.github.io/simulations/HorizontalSpring</loc>
<lastmod>2026-07-04T00:00:00.000Z</lastmod>
<lastmod>2026-07-15T00:00:00.000Z</lastmod>
<changefreq>weekly</changefreq>
<priority>0.7</priority>
</url>
<url>
<loc>https://physicshub.github.io/simulations/DoublePendulum</loc>
<lastmod>2026-07-04T00:00:00.000Z</lastmod>
<lastmod>2026-07-15T00:00:00.000Z</lastmod>
<changefreq>weekly</changefreq>
<priority>0.7</priority>
</url>
<url>
<loc>https://physicshub.github.io/simulations/CollisionSimulation</loc>
<lastmod>2026-07-04T00:00:00.000Z</lastmod>
<lastmod>2026-07-15T00:00:00.000Z</lastmod>
<changefreq>weekly</changefreq>
<priority>0.7</priority>
</url>
<url>
<loc>https://physicshub.github.io/simulations/test</loc>
<lastmod>2026-07-04T00:00:00.000Z</lastmod>
<lastmod>2026-07-15T00:00:00.000Z</lastmod>
<changefreq>weekly</changefreq>
<priority>0.7</priority>
</url>
<url>
<loc>https://physicshub.github.io/simulations/PiCollisions</loc>
<lastmod>2026-07-04T00:00:00.000Z</lastmod>
<lastmod>2026-07-15T00:00:00.000Z</lastmod>
<changefreq>weekly</changefreq>
<priority>0.7</priority>
</url>
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