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What is Nibbler?

Nibbler is a free tool for testing websites. Enter the address of any website and Nibbler will give you a report scoring the website out of 10 for key areas, including accessibility, SEO, social media and technology.

Nibbler is completely free, but limited to three reports.

Want more?

If you are looking to improve your own websites, take a look at Silktide, which tests websites in far more detail, and offers comprehensive suggestions on how to improve them.

If you sell digital marketing services such as websites or PPC ads, we offer a professional sales tool called Silktide Prospect, which allows you to compare websites, discover new leads, generate PDFs and brand your reports.

Nibbler can’t see all of my pages!

Nibbler is a ‘bot’ – an automated computer program which tries to find webpages by looking at the first one, and following links from that to other pages. If a website doesn’t link pages to each other in a way that a bot can see, then Nibbler will not be able to explore it fully.

Most conventional websites will work fine. If a website is made entirely from Flash, it will usually not be testable. If a website requires you fill in a form to enter it (e.g. to confirm your age, or log in) it won’t be testable.

Some websites use special anti-bot technologies to stop spammers. These websites may also stop Nibbler from being able to test them.