![]() ![]() You can look them up on Wikipedia and – here you can choose applicable versions and compare each function. You need to account for all the differences between them. Very often, what you find on the Internet, will reference the PCRE (Perl Compatible Regular Expressions) implementation. Screaming Frog SEO Spider uses a Java regex implementation, documented in Java docs. Sometimes a regex found on Stack Overflow won’t just work. You need to remember that regex implementations differ from one programming language to the other, and sometimes from one library to another. Working with SF SEO Spider you will find that regular expressions (regex) will be very handy, especially when creating crawling exclusion patterns and extracting specific data from HTML. Remember, though, that it’s automatic and fairly primitive, so there’s usually a need for adjustment to build a universal XPath selector. Note that you can use XPath expressions in Chrome DevTools’ search field, among other places, to find hidden header tags, count links and check any other HTML elements.īy right-clicking on a DOM node in DevTools you can also copy its corresponding XPath and use it for scraping, among other things. We can use XPath expressions (with a handy cheat sheet) to leverage Screaming Frog SEO Spider for more advanced and helpful tasks. Screaming Frog SEO Spider is more than just a crawling software used to glance at automatic canonical and headings reports. You will have it a little easier, though, if you learn a couple of tricks first. ![]() Useful preliminary technical SEO knowledgeĭon’t worry if you’re less technically gifted, anyone can crawl websites and draw conclusions. ![]()
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