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So the short answer is there's nothing in Feedburner's robots.txt to prevent crawlers from accessing those URLs, even indexing them. You'll find them in Moz's index because those URLs are completely discoverable on the web. It appears to me Google is making a special case out of them. Although they don't do that for all Feedburner URLs. From a larger picture point of view, there's always going to be a discrepancy between what Google counts and what you find in OSE, or Majestic, or Ahrefs. So we don't really know how Google is treating those URLs. I would suspect they are using them for discovery. It's possible they pass link equity as well, but I wouldn't say that with a lot of confidence. It's possible we'll considering treating these URLs different in the future if we become more confident in how we believe Google treats them. Regardless, thanks for the heads up.

As mentioned earlier, you can create a comprehensive Sitemap.xml file and resubmit to Google. Give me your email address, I will create one for you and send it Best regards, Devanur Rafi

Thanks Tom.

All of these are great answers. Below are a few more resources you might want to check out prior to launching: The 2014 SEO Checklist by ClickMinded: I can't endorse 100% of everything on there (we all have our own opinions, tools and methods) but it is a fairly comprehensive checklist. The 2013 SEO Ranking Factors Study by Moz: This is from last year, but still relevant and mostly accurate. The Periodic Table of SEO Success Factors by SEL: I find this visual format very confusing and convoluted, but others find it very logical and easy to interpret. I think it depends on the person. I'm more data-oriented rather than visually oriented. Either way it's a good resource. The biggest mistakes I see on eCommerce sites are as follows: Non-Unique Product Copy (e.g. Content taken from manufacturer or distributor descriptions, or product feeds) Internal Duplicate Product Copy (e.g. product variants with their own canonical URLs using the same copy, non-canonical URLs created by query strings, from products in multiple categories, etc...) Thin or Useless Product Copy Indexable URLs for Filtered/Faceted/Layered navigation Indexable URLs for internal search results Indexable shopping cart URLs Good luck!