All Web Images Videos News
Settings
Appearance
Site Icons
Font Size
Font
General
Infinite Scroll
Open Links in a New Tab
Safe Search
Search Engine Optimization Overview
77
100
LeetCode - The World's Leading Online Programming Learning Platform
Level up your coding skills and quickly land a job. This is the best place to expand your knowledge and get prepared for your next interview.
https://leetcode.com/
3 high issues
9.1%
2 medium issues
6.1%
3 low issues
9.1%
25 tests passed
75.8%
0.19 seconds
15.37 kB
30 resources
Secure
Seo
Title
The title tag must be between 1 and 60 characters.
The current title has 72 characters.
Meta description
The meta description tag is good.
Level up your coding skills and quickly land a job. This is the best place to expand your knowledge and get prepared for your next interview.
Headings
There is no h1 tag on the webpage.
Content keywords
The content has relevant keywords.
leetcode
Image keywords
There are 1 images with missing alt attributes.
  1. https://leetcode.com/static/images/region/us.svg
SEO friendly URL
The URL is SEO friendly.
https://leetcode.com/
404 page
The website has 404 error pages.
https://leetcode.com/404-cc3bac377de4b278eb3d700bf5a98f8d
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 does not have a language declared.
Favicon
The webpage has a favicon.
https://leetcode.com/favicon-192x192.png
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 15,372.00.
HTTP requests
There are fewer than 30 HTTP requests on the webpage.
  1. https://extend.vimeocdn.com/ga/124665836.js
  2. https://leetcode.com/static/CACHE/js/output.0ff5509473f6.js
  3. https://leetcode.com/static/jquery/dist/jquery.min.js?v=3.3.1
  4. https://leetcode.com/static/jquery.cookie/jquery.cookie.js
  5. https://leetcode.com/static/jquery-sticky/jquery.sticky.js
  6. https://leetcode.com/static/clipboard/dist/clipboard.min.js
  7. https://leetcode.com/static/sweetalert2/dist/sweetalert2.min.js
  8. https://leetcode.com/static/angular/angular.min.js
  9. https://leetcode.com/static/jquery-ui-dist/jquery-ui.min.js
  10. https://leetcode.com/static/noty/lib/noty.min.js
  11. https://leetcode.com/static/bootstrap/dist/js/bootstrap.min.js?v=3.3.7
  12. https://leetcode.com/static/bootstrap-table/dist/bootstrap-table.min.js
  13. https://leetcode.com/static/CACHE/js/output.ee2b7fc628e3.js
  14. https://assets.leetcode.com/static_assets/public/webpack_bundles/runtime.87724bff8.js
  15. https://assets.leetcode.com/static_assets/public/webpack_bundles/common/global.edbfc4d36.js
  16. https://assets.leetcode.com/static_assets/public/webpack_bundles/common/styles/index.4857ec0d1.js
  17. https://assets.leetcode.com/static_assets/public/webpack_bundles/vendor-libs.0f0931b52.js
  18. https://assets.leetcode.com/static_assets/public/webpack_bundles/common-libs.378824e83.js
  19. https://assets.leetcode.com/static_assets/public/webpack_bundles/new-libs.d88a363a5.js
  20. https://assets.leetcode.com/static_assets/public/webpack_bundles/new-apps/navbar-footer/index.31b02d76e.js
  21. https://assets.leetcode.com/static_assets/public/webpack_bundles/apps/landing_page/index.1eb22c4cd.js
  22. https://leetcode.com/static/legacy/common/js/base.js
  23. https://www.recaptcha.net/recaptcha/api.js?onload=recaptchaV2Callback&render=explicit
  24. https://www.recaptcha.net/recaptcha/api.js?onload=recaptchaV3Callback&render=6LdBpsIUAAAAAKAYWjZfIpn4cJHVIk_tsmxpl7cz
  1. https://leetcode.com/static/bootstrap/dist/css/bootstrap.min.css?v=3.3.7
  2. https://leetcode.com/static/font-awesome/css/font-awesome.min.css?cache_version=2
  3. https://leetcode.com/static/bootstrap-table/dist/bootstrap-table.min.css
  4. https://leetcode.com/static/CACHE/css/output.6366054424a1.css
  5. https://leetcode.com/static/CACHE/css/output.747af8d3be4a.css
  1. https://leetcode.com/static/images/region/us.svg
Image format
The images are served in the AVIF, WebP format.
JavaScript defer
The are 22 javascript resources without the defer attribute.
  1. https://leetcode.com/static/CACHE/js/output.0ff5509473f6.js
  2. https://leetcode.com/static/jquery/dist/jquery.min.js?v=3.3.1
  3. https://leetcode.com/static/jquery.cookie/jquery.cookie.js
  4. https://leetcode.com/static/jquery-sticky/jquery.sticky.js
  5. https://leetcode.com/static/clipboard/dist/clipboard.min.js
  6. https://leetcode.com/static/sweetalert2/dist/sweetalert2.min.js
  7. https://leetcode.com/static/angular/angular.min.js
  8. https://leetcode.com/static/jquery-ui-dist/jquery-ui.min.js
  9. https://leetcode.com/static/noty/lib/noty.min.js
  10. https://leetcode.com/static/bootstrap/dist/js/bootstrap.min.js?v=3.3.7
  11. https://leetcode.com/static/bootstrap-table/dist/bootstrap-table.min.js
  12. https://leetcode.com/static/CACHE/js/output.ee2b7fc628e3.js
  13. https://assets.leetcode.com/static_assets/public/webpack_bundles/runtime.87724bff8.js
  14. https://assets.leetcode.com/static_assets/public/webpack_bundles/common/global.edbfc4d36.js
  15. https://assets.leetcode.com/static_assets/public/webpack_bundles/common/styles/index.4857ec0d1.js
  16. https://assets.leetcode.com/static_assets/public/webpack_bundles/vendor-libs.0f0931b52.js
  17. https://assets.leetcode.com/static_assets/public/webpack_bundles/common-libs.378824e83.js
  18. https://assets.leetcode.com/static_assets/public/webpack_bundles/new-libs.d88a363a5.js
  19. https://assets.leetcode.com/static_assets/public/webpack_bundles/new-apps/navbar-footer/index.31b02d76e.js
  20. https://assets.leetcode.com/static_assets/public/webpack_bundles/apps/landing_page/index.1eb22c4cd.js
  21. https://leetcode.com/static/legacy/common/js/base.js
  22. https://www.recaptcha.net/recaptcha/api.js?onload=recaptchaV3Callback&render=6LdBpsIUAAAAAKAYWjZfIpn4cJHVIk_tsmxpl7cz
DOM size
The DOM size is optimal.
The HTML file has 101 DOM nodes.
Security
HTTPS encryption
The webpage uses HTTPS encryption.
The HTML file has https://leetcode.com/ DOM nodes.
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=1.0, maximum-scale=1.0, user-scalable=no, viewport-fit=cover
    Character set
    The webpage has a charset value set.
    utf-8
    Sitemap
    The website has sitemaps.
    1. https://leetcode.com/sitemap.xml
    Social
    The webpage does not contain any social links.
    Content length
    The webpage has 921 words.
    Text to HTML ratio
    The text to HTML ratio is 17%.
    Inline CSS
    The webpage contains inline CSS code.
    1. min-height: 100vh
    2. margin-top: 20px
    Deprecated HTML
    There are no deprecated HTML tags on the webpage.