A browser extension for Chrome, Firefox, Edge and Opera.
- Google Chrome
- Firefox
- Microsoft Edge
- Opera (pending approval...)
- Safari (works from source but not uploaded to App Store)
Various checks are performed on a website to make sure best practices are met. Those checks are handled by the rules engine.
These are the rules:
Checks that either itemscope attributes or <script type="application/ld+json"> exist.
Checks that <meta name="description" /> exist in the <head>.
Checks if robots.txt exist in the root of the website.
Checks if @media exist in any linked stylesheet.
Checks that <meta name="viewport" /> exist in the <head>.
Checks that either <link rel="shortcut icon" /> or <meta itemtype="image"> exist in the <head>. If not, it checks if favicon.ico exist in the root of the website.
Checks that the URL doesn't contain any URL parameters. Technically, it checks if a ? exist in the URL.
Runs HTML validation to ensure the website adhere to the W3C HTML standard.
Check that a role attribute exist on any element on the webste.
Checks all images for missing alt attributes.
Checks that <meta name="twitter:title" /> exist.
Checks that <meta property="og:*" /> exist on the website.
Checks that either <meta name="application-name" /> or <meta name="msapplication" /> exist.
Checks that <link rel="apple-*" /> exist on the website.
Checks that the number of DOM elements on the page doesn't exeed 2000.
Checks the page on Google PageSpeed Insights to make sure it gets a score of at least 90.
To fork and build your own copy of this extension, simply clone the repo and run npm run build.
React
Typescript
Django
Laravel
Facebook
Microsoft
Google
Alibaba
D3
Tencent