Technical SEO

Test, learn and debug regular expressions you are using. This tool is one of the best to get to grips with regex. Paste your code & string and get an explanation of what's happening.

Employ some well trained monkeys to visit your website and pick it apart, looking for bugs (it's what they eat). Get monkeys to click everything and report back.

Find an updated list of distinct domains Google uses to cite information in the Knowledge Graph. This will help give you a clear understanding of which sites Google trusts for information source.

instant.page uses just-in-time preloading — it preloads a page right before a user clicks on it. Vastly improve online shopping experience with simple code.

Big shout to Jason Barnard for his love of the Knowledge Graph. Type in your brand or your own name to see what information is contained in Google's Knowledge Graph.

Seriously test your technical SEO skills with this puzzle challenge, it's really tough but really fun. Big thank you and credit to Alexis Sanders.

Real-time 24/7 cloud based SEO auditing and content tracking - monitor website changes that could affect your SEO and get them wrapped up in this awesome web app.

Top 20 shortlist

For a lightning fast check up on your analytics implementation, this extension is great for quickly spotting high level errors.

A great SERP API that enables you to scrape search engine result pages in realtime. It's easy to get set up too with a free plan.

Multiple schema type generator to get you started without the need for coding. Simple fill out the fields and copy the code!