SEO & GEO

Google raises new suggestions about rankings

Matt Cutts hints page speed may soon feed the ranking algorithm. Suddenly HTTP caching, Expires headers and hosting choices stop being purely developer concerns.

SEO & GEO

How Google (and other SEs) crawl and ranks PDF files?

Google has indexed PDFs since 2001, and Quick View finally made them readable in the browser — but how do you actually optimise one to rank? An introduction to the test I ran.

SEO & GEO

PDF indexing and ranking test

A controlled experiment on how search engines index and rank PDF files — thirteen documents on a fresh domain, the same text, small variations, and the daily SERP log.

SEO & GEO

Google testing new style in the SERPs

Underlined links, breadcrumbs, new snippets — Google keeps rearranging the visual furniture of the SERPs. How much does a few pixels of extra space really move the CTR?

SEO & GEO

Google is dabbling with real time search? May be.

Hacking the QDR parameter in Google's URL lets you filter results by the last X minutes — or seconds. A small trick, possibly a sign of where real-time search is heading.

SEO & GEO

Solving the SPAM problem with the Grey list

Between the whitelist and the blacklist sits the greylist — a small trick at the SMTP layer that, in my experience, kills roughly 99% of spam before it reaches the inbox.