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Thank you both! So sorry on the delay to respond. Makes sense!

Ah, ok, thanks!

OpenSite explorer is based upon the Linkscape crawl of the web. Linkscape crawls the top 25% of web pages on the web, not 100% of the web. Generally speaking, if your link is not in the top 25% of web pages, it does not have any value anyway so OSE is a great source of link information. The process to crawl the web and work through the data takes about a month. The next Linkscape update is expected to go live on Oct 18th (next Tuesday). I would suggest checking OSE again on Wednesday for your link. My greater concern is you are not able to view the link in Google WMT. If a page is buried too deeply in a site, Google may not crawl it. Also if a site has certain issues it may not be properly crawled either. Can you share some examples of a couple links you are not seeing in Google WMT?