Accessibility
If a page uses the Application Cache, SeoChecker will notify it.
<html manifest="example.appcache"> ... </html>
Therefore you should delete this manifest and substitute it with the Cache API through a service worker.
For the migration you could use sw-appcache-behavior library.
Learn more about Accessibility
On page SEO performance and page checkup.
Over 300 parameters for the deeper page analysis.
Share this Guide
Did you like it? Share it!
Web tools for modern developers. Try these one!
Over 50 generators, builders and validators to improve your SEO and web performances
Tester and validators
Validate your AMP pages with this tool. Test your Accelerated Mobile Pages, get detailed report and optimize performance.
Converters
Convert Bits, Bytes, Kilobytes, Megabytes, Gigabytes, Terabytes and so on. Set number and choose unit to convert. Try it for free.
Analyze your web page speed performance. Retrieve information about speed index, latency, first contentful paint and more.
Google
Find out how Google calculates your overall Performance score. Drag the cursors to understand what thresholds you must be aiming for achieving a good performance
Builders and generators Social
Generate Twitter cards markup and improve yours html meta. Attach rich photos, videos and media experiences to Tweets and drive traffic to your site.
Capture web page requests and timeline waterfall. Quickly capture and analyze web page network requests during page load.
Builders and generators
Generate beautiful color palette combinations for your designs. Get your combination scheme: analogous, triadic, complementary and so on.
Server and proxy
View and download any website’s Source Code. Get the HTML source code of any online web page from any browser, devices and Os system.