How crawl budget works – my latest SEL column
Ian Lurie Jan 6 2011
My latest Search Engine Land column just went live. It’s about Crawl Budget and how it may work. Having re-read it, though, I want to make sure I add even more qualification to what I wrote:
- I talk about crawl budget a lot, but the most important part of this article, really, is ‘making the most of your crawl budget’. That’s what Vanessa Fox refers to as ‘crawl efficiency’. If you have a huge crawl budget but 90% of it is sucked up by duplicate content and such, then you won’t see much benefit.
- Search engines apply PageRank to individual pages, not to entire sites. However, I definitely see evidence that they look at some version of average PageRank, or domain authority, or whatever you want to call it, site-wide. That appears to impact crawl budget. There may not be a causal link – it may simply be that sites with lots of pages that all have higher PageRank get higher crawl budgets as a side effect of deep links to individual site pages.
This is a very deep, geeky topic – I hope I don’t ruffle any feathers too badly, but I also hope that a lot of people smarter than I will pick up the discussion, so we can all learn something.
Ian Lurie is CEO and founder of Portent Inc. He is co-author of the 2nd edition of the Web Marketing All-In-One for Dummies and wrote the sections on SEO, blogging, social media and web analytics. He's recorded training for Lynda.com, writes regularly for the Portent Blog and has been published on AllThingsD, Forbes.com and TechCrunch. And, Ian speaks at conferences around the world, including SearchLove, MozCon, SIC and ad:Tech. Read More