How effective is OSE in crawling press release links?

[deuce1s]

How effective is OSE in crawling press release links?

We have released a few press releases recently (over the last couple of months) and OSE doesn't seem to have found them.

[Nick_Sayers]

Hey There,

That could be a possibility. It is hard to say definitively given the nature of web crawlers. They just crawl links as they see them in random succession, so a lot of factors come into play.

Best,

Nick
SEOmoz

[deuce1s]

Our releases have appeared on big sites like the Financial Post.

Is it possible they just get buried under other news so OSE can't find them? I know Google indexes these pages, we get the alerts.

[Nick_Sayers]

Hey there,

Just so you know, here's how we compile our index:    - We grab the most recent index. - We take the top 10 billion URLs with the highest MozRank (with a fixed limit on some of the larger domains).    - We start crawling from the top down until we've crawled 59,000,000,000 pages (which is about 25% the amount in Google's index).

Therefore, if the site is not linked to by one of these seed URLs (or one of the URLs linked to by them in the next update) then it won't show up in our index. Sorry!

We update our Linkscape Index every 4 weeks. Crawling the entire Internet to look for links takes 2-3 weeks, but our crawlers are always in motion. When we need to start processing, we grab all the data they have collected and start processing which can take up to 3 weeks to determine which of those links are the most important. You can see our most recently updated schedule here: http://seomoz.zendesk.com/entries/345964-linkscape-update-schedule

Linkscape focuses on a breadth-first approach. Therefore we almost always have content from the homepage of websites, externally linked-to pages, and pages higher up in a site's information hierarchy. However, deep pages that are buried beneath many layers of navigation are sometimes missed and it may be several index updates before we catch all of these.

If our crawlers or data sources are blocked from reaching those URLs, they may not be included in our index (though links that point to those pages will still be available). Finally, the URLs seen by Linkscape must be linked-to by other documents on the web or our index will not include them.

For now, the best thing you can do to help your domain become indexed is to work on link building for links from sites with high mozrank.

Best,
Nick
SEOmoz

[MSSTORAGE]

This all depends on where the press releases have been posted.

If you've got the urls of the sites they're on it may be worth looking at these in OSE to see if SEOmoz has them indexed. However, don't forget that the SEOmoz index is not the same as google's. Just because it's not showing on OSE doesn't mean that G hasn't seen it.