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In 2005 Google launched a series of algorithm updates, which became known as the Jagger Update, named like many others by Brett Tabke of WebmasterWorld.
The Stones are playing Vegas [ticketmaster.com] the week of PubCon and Matt Cutts was recently called the Mick Jagger of search [usatoday.com]. – Brett Tabke, via WebmasterWorld, 9:48 pm on Oct 18, 2005
Like most major Google algorithm updates, Jagger rolled out over a number of weeks and data suggests that it started in early September, with Google updating its publicly available information in mid-October on how it perceives links being directed to a specific website.
Before Jagger, the last major algorithm update was the 2003 Florida update, so as you can imagine another large update got the entire SEO community buzzing, on various forums and blogs.
Jagger began with a number of backlink-focused updates in September 2005, and these continued into October 2005. This coincided with an update of the public facing Google PageRank database, which in itself was a noteworthy event.
The second and third parts of the Jagger update lasted until November 2005.
With the Jagger Update, Google altered its algorithm in a number of ways, mainly affecting a website’s backlink profile, content size, and refresh rate, as well as a number of other technical factors.
Jagger negatively impacted websites with duplicate content across multiple domains. Following the third installment of the update, webmasters also reported issues with internal duplication and how canonicals were being handled.
With this update, Google took a new approach to how they weighted and understood links pointing to a website, taking into account the anchor text of inbound links, the page content of the inbound link, and the speed/velocity of inbound links coming to the website.
In 2005, using cloaking as a method to show one piece of content to search engines and another to users was fast becoming a favorite tactic of spammers. Jagger targeted websites using CSS unnaturally and websites using delayed meta redirects to cloak and deceive search engines/users saw the biggest hit.
Jagger, being one of the earlier Google updates, really helped pave the way for what we consider to be SEO best practices, as well as further algorithm updates.
More Google Jagger Resources:
Featured Image Credit: Paulo Bobita
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