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Search Engine Optimization Overview
83
100
React Native · Learn once, write anywhere
A framework for building native apps using React
http://reactnative.dev/
2 high issues
6.1%
2 medium issues
6.1%
4 low issues
12.1%
25 tests passed
75.8%
0.19 seconds
10.67 kB
40 resources
Insecure
Seo
Title
The title tag is perfect.
React Native · Learn once, write anywhere
Meta description
The meta description tag is good.
A framework for building native apps using React
Headings
The headings are properly set.
  1. React Native
  1. Create native apps for Android, iOS, and more using React
  2. Written in JavaScript—rendered with native code
  3. Native Development For Everyone
  4. Seamless Cross-Platform
  5. Fast Refresh
  6. Talks and Videos
  7. Facebook Supported, Community Driven
  8. Give it a try
Content keywords
The content has relevant keywords.
reactnativelearnoncewriteanywhere
Image keywords
There are 6 images with missing alt attributes.
  1. https://d33wubrfki0l68.cloudfront.net/d74da08f08b4a17c368b58d36ee23c368b4a6819/fff62/img/homepage/phones.png
  2. https://d33wubrfki0l68.cloudfront.net/7943912760c2cb5fb1473c2a90d2843145cb338b/49841/img/homepage/dissection/0.png
  3. https://d33wubrfki0l68.cloudfront.net/76f8798241ffaadda0863fe8df768b0f6355632b/0a464/img/homepage/dissection/1.png
  4. https://d33wubrfki0l68.cloudfront.net/5f56a6b5d69810fee53ea83db8f9e6d68c118712/01dab/img/homepage/dissection/2.png
  5. https://d33wubrfki0l68.cloudfront.net/7e97b18b02060f1d4b65a5850b49e2488da391bb/d60ff/img/homepage/dissection/3.png
  6. https://d33wubrfki0l68.cloudfront.net/e27c1674535072c039d400940526e1cf4e8b4680/25956/img/homepage/fb-logo.svg
SEO friendly URL
The URL is SEO friendly.
http://reactnative.dev/
404 page
The website has 404 error pages.
http://reactnative.dev/404-3b8e7f7b932b1ef394198e0eb241f8ae
Robots.txt
The webpage can be accessed by search engines.
Noindex
The webpage does not have a noindex tag set.
In-page links
The number of links on the webpage is okay.
Language
The webpage has the language declared.
en
Favicon
The webpage has a favicon.
http://reactnative.dev/img/favicon.ico
Performance
Text compression
The HTML file is compressed.
Load time
The webpage loaded in 0.19 seconds.
Page size
The size of the HTML webpage is 10,665.00.
HTTP requests
There are fewer than 40 HTTP requests on the webpage.
  1. https://www.google-analytics.com/analytics.js
  2. https://www.googletagmanager.com/gtag/js?id=UA-41298772-2
  3. https://cdn.jsdelivr.net/npm/focus-visible@5.2.0/dist/focus-visible.min.js
  4. https://widget.surveymonkey.com/collect/website/js/tRaiETqnLgj758hTBazgd8ryO5qrZo8Exadq9qmt1wtm4_2FdZGEAKHDFEt_2BBlwwM4.js
  5. https://snack.expo.dev/embed.js
  6. http://reactnative.dev/assets/js/runtime~main.c1a9c2c1.js
  7. http://reactnative.dev/assets/js/main.083e12a4.js
  1. http://reactnative.dev/assets/css/styles.4f971c73.css
  1. https://d33wubrfki0l68.cloudfront.net/554c3b0e09cf167f0281fda839a5433f2040b349/ecfc9/img/header_logo.svg
  2. https://d33wubrfki0l68.cloudfront.net/554c3b0e09cf167f0281fda839a5433f2040b349/ecfc9/img/header_logo.svg
  3. https://d33wubrfki0l68.cloudfront.net/d74da08f08b4a17c368b58d36ee23c368b4a6819/fff62/img/homepage/phones.png
  4. https://d33wubrfki0l68.cloudfront.net/7943912760c2cb5fb1473c2a90d2843145cb338b/49841/img/homepage/dissection/0.png
  5. https://d33wubrfki0l68.cloudfront.net/76f8798241ffaadda0863fe8df768b0f6355632b/0a464/img/homepage/dissection/1.png
  6. https://d33wubrfki0l68.cloudfront.net/5f56a6b5d69810fee53ea83db8f9e6d68c118712/01dab/img/homepage/dissection/2.png
  7. https://d33wubrfki0l68.cloudfront.net/7e97b18b02060f1d4b65a5850b49e2488da391bb/d60ff/img/homepage/dissection/3.png
  8. https://d33wubrfki0l68.cloudfront.net/e27c1674535072c039d400940526e1cf4e8b4680/25956/img/homepage/fb-logo.svg
  9. https://d33wubrfki0l68.cloudfront.net/c9c752551d261695e8ef55e921ea7f2227872a41/cb3b3/img/showcase/facebook.webp
  10. https://d33wubrfki0l68.cloudfront.net/0cbb34b472a04fd1fff9a6f071d0a0bc928940ce/456cd/img/showcase/oculus.png
  11. https://d33wubrfki0l68.cloudfront.net/9ed0d7b2d0bbfd4bb8463249318f29139c5c5f6a/298c3/img/showcase/officemobile.png
  12. https://d33wubrfki0l68.cloudfront.net/a014034a5fbb2a740132f356269899260642e80a/a9c46/img/showcase/outlookmobile.png
  13. https://d33wubrfki0l68.cloudfront.net/6a4a4da83623e9a058cca4d83b91c58b54437421/08d7e/img/showcase/teamsmobile.png
  14. https://d33wubrfki0l68.cloudfront.net/6bfac69e5ee15363bb89d406048ac730d331b0d7/1c523/img/showcase/xboxgamepass.png
  15. https://d33wubrfki0l68.cloudfront.net/59ffc53dd14f788fc2e8065e687703bdb2cd3120/1deec/img/showcase/skype.webp
  16. https://d33wubrfki0l68.cloudfront.net/d5f01ce28264f4098cdc5bc2f9f353f5e5ea7c52/3d07a/img/showcase/shop.webp
  17. https://d33wubrfki0l68.cloudfront.net/b242518e85fcdd7d760a5c9fcfdf7ba24e20cfff/30382/img/showcase/coinbase.png
  18. https://d33wubrfki0l68.cloudfront.net/84611d57e5771e05f2bec01475be7f7988c3bc84/372e1/img/showcase/puma.png
  19. https://d33wubrfki0l68.cloudfront.net/7e52d3dc6f5dde799af084a64d5dd31f5a5be41a/76ff0/img/showcase/playstation.png
  20. https://d33wubrfki0l68.cloudfront.net/46ed112836e9c0f8171508055ba367d1241c8874/6c449/img/showcase/wordpress.png
  21. https://d33wubrfki0l68.cloudfront.net/38bf4398edba3c0d033eb48a02ace7cc0442fbe8/20d31/img/showcase/flipkart.png
  22. https://d33wubrfki0l68.cloudfront.net/352c93cd8e793ff3302b60bf7bc6e11c073e8b8f/8a285/img/showcase/mercari.png
  23. https://d33wubrfki0l68.cloudfront.net/3ae1ae78b26a853feac298bb3c78727fc75b924c/161e3/img/showcase/discord.png
  24. https://d33wubrfki0l68.cloudfront.net/521b93d36ade5e2609b4b324a8a62ad2b41d8ddf/1d98c/img/showcase/bloomberg.png
  25. https://d33wubrfki0l68.cloudfront.net/be0275364a3c157259a7c298c1ba5783bc90ac01/85fa7/img/showcase/pinterest.webp
  26. https://d33wubrfki0l68.cloudfront.net/8697b6c5e054ce6ed5abf54b87361e74d901a6cd/44e6b/img/showcase/tesla.png
  27. https://d33wubrfki0l68.cloudfront.net/ddd5fd116af997e4bbefb2e0c7fa85fb20ca7dd1/d9278/img/showcase/qq.webp
  28. https://d33wubrfki0l68.cloudfront.net/59ccc68a321429ab0ae3fa41e6b61faae86b8e8e/7608b/img/showcase/nfl.webp
  29. https://d33wubrfki0l68.cloudfront.net/4245a6b338cc1b008aa1265c213c1e75be207801/2eaf7/img/oss_logo.svg
  30. https://d33wubrfki0l68.cloudfront.net/4245a6b338cc1b008aa1265c213c1e75be207801/2eaf7/img/oss_logo.svg
  1. https://www.youtube.com/embed/NCAY0HIfrwc
  2. https://www.youtube.com/embed/wUDeLT6WXnQ
Image format
There are 19 images that are not using the AVIF, WebP format.
  1. https://d33wubrfki0l68.cloudfront.net/d74da08f08b4a17c368b58d36ee23c368b4a6819/fff62/img/homepage/phones.png
  2. https://d33wubrfki0l68.cloudfront.net/7943912760c2cb5fb1473c2a90d2843145cb338b/49841/img/homepage/dissection/0.png
  3. https://d33wubrfki0l68.cloudfront.net/76f8798241ffaadda0863fe8df768b0f6355632b/0a464/img/homepage/dissection/1.png
  4. https://d33wubrfki0l68.cloudfront.net/5f56a6b5d69810fee53ea83db8f9e6d68c118712/01dab/img/homepage/dissection/2.png
  5. https://d33wubrfki0l68.cloudfront.net/7e97b18b02060f1d4b65a5850b49e2488da391bb/d60ff/img/homepage/dissection/3.png
  6. https://d33wubrfki0l68.cloudfront.net/0cbb34b472a04fd1fff9a6f071d0a0bc928940ce/456cd/img/showcase/oculus.png
  7. https://d33wubrfki0l68.cloudfront.net/9ed0d7b2d0bbfd4bb8463249318f29139c5c5f6a/298c3/img/showcase/officemobile.png
  8. https://d33wubrfki0l68.cloudfront.net/a014034a5fbb2a740132f356269899260642e80a/a9c46/img/showcase/outlookmobile.png
  9. https://d33wubrfki0l68.cloudfront.net/6a4a4da83623e9a058cca4d83b91c58b54437421/08d7e/img/showcase/teamsmobile.png
  10. https://d33wubrfki0l68.cloudfront.net/6bfac69e5ee15363bb89d406048ac730d331b0d7/1c523/img/showcase/xboxgamepass.png
  11. https://d33wubrfki0l68.cloudfront.net/b242518e85fcdd7d760a5c9fcfdf7ba24e20cfff/30382/img/showcase/coinbase.png
  12. https://d33wubrfki0l68.cloudfront.net/84611d57e5771e05f2bec01475be7f7988c3bc84/372e1/img/showcase/puma.png
  13. https://d33wubrfki0l68.cloudfront.net/7e52d3dc6f5dde799af084a64d5dd31f5a5be41a/76ff0/img/showcase/playstation.png
  14. https://d33wubrfki0l68.cloudfront.net/46ed112836e9c0f8171508055ba367d1241c8874/6c449/img/showcase/wordpress.png
  15. https://d33wubrfki0l68.cloudfront.net/38bf4398edba3c0d033eb48a02ace7cc0442fbe8/20d31/img/showcase/flipkart.png
  16. https://d33wubrfki0l68.cloudfront.net/352c93cd8e793ff3302b60bf7bc6e11c073e8b8f/8a285/img/showcase/mercari.png
  17. https://d33wubrfki0l68.cloudfront.net/3ae1ae78b26a853feac298bb3c78727fc75b924c/161e3/img/showcase/discord.png
  18. https://d33wubrfki0l68.cloudfront.net/521b93d36ade5e2609b4b324a8a62ad2b41d8ddf/1d98c/img/showcase/bloomberg.png
  19. https://d33wubrfki0l68.cloudfront.net/8697b6c5e054ce6ed5abf54b87361e74d901a6cd/44e6b/img/showcase/tesla.png
JavaScript defer
The are 4 javascript resources without the defer attribute.
  1. https://www.google-analytics.com/analytics.js
  2. https://www.googletagmanager.com/gtag/js?id=UA-41298772-2
  3. http://reactnative.dev/assets/js/runtime~main.c1a9c2c1.js
  4. http://reactnative.dev/assets/js/main.083e12a4.js
DOM size
The DOM size is optimal.
The HTML file has 689 DOM nodes.
Security
HTTPS encryption
The webpage does not use HTTPS encryption.
Mixed content
There are no mixed content resources on the webpage.
Server signature
The webpage has a public server signature.
cloudflare
Unsafe cross-origin links
The webpage does not have unsafe cross-origin links.
Plaintext email
The webpage does not contain any plaintext emails.
Miscellaneous
Structured data
The webpage has structured data.
      Meta viewport
      The webpage has a meta viewport tag set.
      width=device-width,initial-scale=1
      Character set
      The webpage has a charset value set.
      UTF-8
      Sitemap
      No sitemaps found.
      Social
      The webpage has 3 social links.
      Content length
      The webpage has 610 words.
      Text to HTML ratio
      The text to HTML ratio is under 10%
      The text to HTML ratio is 9%.
      Inline CSS
      The webpage contains inline CSS code.
      1. background-color:#20232a;color:#fff
      2. --prism-color:#FFFFFF;--prism-background-color:#282C34
      3. color:#FFFFFF
      4. display:inline-block
      5. color:#FFFFFF
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      Deprecated HTML
      There are no deprecated HTML tags on the webpage.