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johnon.com  Competitive Webmastering & SEO
March 22nd, 2007 by john andrews

SEO for AJAX

Subtitled: “Meet my 5 sons: all named George” or “Advanced SEO

George Foreman has five sons, all named George. If you were to visit George and he were to introduce you to his sons, he would present each one in turn, call them by their name “George” and then maybe add a second label like (”my second George” or “the smart one” or whatever). He said he named them George because he wanted them to always know who their father was. They are not identical: they just have the same name. You can’t tell them apart by their names, but with the added second label or their looks, you could easily identify them. But not if you were blind. You’d need more info, right?

So how do you name your web pages?

Most webmasters know not to use frames because the frame set URL remains in place as each framed page is displayed. The result is like naming all of your kids George - they all have the same URL. A search engine will see just one “name” and list the one URL as a single page in the search index. Bad idea.

Most webmasters these days also know not to use a URL which is almost exactly the same for multiple pages, differing only by a long “id” value. If it isn’t sufficiently distinct to the search engine spider, it won’t be any different from The Other Page Also Named George. Most web masters are also keeping page titles distinct, as a second label (”the smart George”). More advanced web masters have learned to recognize overly “templatic” web pages, which can look nearly identical to other pages, and suffer a similar identity crisis to nearly blind search spiders (less severe consequences, but still sub-optimal).

But what about modern web applications deploying asynchronous user interface technologies like AJAX, where on-page content (or in-page content) can vary depending on context, not just URL? If the middle paragraph updates via asynchronous server calls, without a page refresh, then the URL hasn’t changed and the new resource (or “view”) becomes just another Web Page Named George. Sure it has different content, but it doesn’t exist as a separate entity according to the search engine labels (URL and page title). In other words, it won’t get indexed.

In the current search world, it is essential that each view full of content that you think defines a valuable, site-defining and user-facing page of content on your site be indexed as a unique web resource. If you collate content to create such views so they are specifically relevant for visitors in a specific context (such as we do when we optimize for SEO… matching views of content to referred search engine visitors), then your hard work collating will be for naught if it doesn’t get labeled and indexed.

So what to do?

Many SEO Advice web sites suggest that you generate a second set of static views (or dynamic, but URL-unique views) to be fed to search engines. I don’t think that is a very creative solution. The Sitemaps protocol is also a way to define views to reflect your pre-defined collections, yet archaic anti-cloaking guidelines (like the one at Google) require that those URLs deliver the same content to both users and search spiders. That makes the sitemap little more than a representation of static content. Again, that’s not very creative. For truly asynchronous, data-based content, it’s also not very practical. There are simply too many possible views.

If you are thinking this issue through analytically, and seeking a practical solution that enables deployment of asynchronous visitor views while simultaneously allowing a statically-labeled set of entry points to exist such that a traditional spidering of that content enables a contextual indexing of the content by labeled URL, go ahead and call yourself an SEO. If you get it done in a way that requires a substantial amount of extra work for a web designer, like maybe creating a second static web site just for search engines, then call yourself a second-tier SEO and try to increase your R&D time or training budget. You’re stuck in old-skool SEO. You’re going to need to update your skills sooner than you might like.

But if you have already mapped out your site’s user experience, and documented the intent and strategy that drives the UI designers to create the asynchronous interfaces deployed, then rest assured you are doing well. You understand the reasons why page sections update asynchronously, the underlying data structures in use behind the scenes, and the link between view and content. You already know how you can use that to define a set of defining views, to be sitemapped and exploited as landing pages. A second set of static pages? You betcha. A lot of extra work? on the contrary. It will probably be defining work for the marketing team, worthy of the effort even without search engines requiring it. It won’t require top-dollar designer and developer hours, but merely DHTML web designer hours. Once you get the basic infrastructure in place to support your “sitemap”, you can endeavor to optimize the site independent of the UI designers, the way nature intended :-)

Now if you find yourself working with a javascript team that has the patience required to document that interface, or one that actually had a strategy in place for the user experience before they built it, or one that is working with a data structure actually designed to support that strategically-defined user experience, consider yourself extremely lucky.

If not, there’s still hope. If you have a good marketing team, you might end up delivering some clue packages to the web too dot oh development primadonnas, along with a proper specification for how they might try and get it a little more right with the next refactoring. In order to keep the SEO bill less than twice the development bill (or less than the first year’s PPC bill). I’m just sayin’, thaz all.

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John Andrews is a mobile web professional and competitive search engine optimzer (SEO). He's been quietly earning top rank for websites since 1997. About John

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