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Our homepage, as well as several similar landing pages, have vanished from the index. Could you guys review the below pages to make sure I'm not missing something really obvious?! URLs: http://www.grammarly.com http://www.grammarly.com/plagiarism-checker It's been four days, so it's not just a temporary fluctuation The pages don't have a "noindex" tag on them and aren't being excluded in our robots.txt There's no notification about a penalty in WMT Clues: WMT is returning an "HTTP 200 OK" for Fetch, is showing a redirect to grammarly.com/1 (alternate version of homepage, contains rel=canonical back to homepage) for Fetch+Render. Could this be causing a circular redirect? Some pages on our domain are ranking fine, e.g. https://www.google.com/search?q=grammarly+answers A month ago, we redesigned the pages in question. The new versions are pretty script-heavy, as you can see. We don't have a sitemap set up yet. Any ideas? Thanks in advance, friends!

Hey everyone, We have a free browser extension for Chrome and a paid web product for all other browsers. Given the differences in product and pricing (free vs. paid) I'd like visitors to see a different landing page based on their browser. Visitors using Chrome should see a landing page with content about the free browser extension, while visitors from every other browser should see a landing page with content about the paid, premium web product. I'm trying to decide between these two options: a) 302 redirect visitors from one static HTML landing page to another if their user agent suggests they're using Chrome b) Use javascript to make parts of the landing page dynamic and show a different CTA and different copy for visits from Chrome Does anyone have any experience with having to make this choice? What are some things I should take into consideration for optimal "crawlability" and page-load-speed? Thanks in advance!

We own a number of foreign TLD domains for our brand. They are all 301-redirected to our main .com branded domain. One of them is appearing in our branded search results, outranking out main .com page. To be clear, this is despite there being a 301 redirect from it to the .com page. Any ideas on what is going on here?

Hey everyone, I have a question about the following scenario: Page 1: Text A, Text B, Text C Page 2 (rel=canonical to Page 1): Text A, Text B, Text C, Text D Much of the content on page 2 is "rel=canonical"ized to page 1 to signalize duplicate content. However, Page 2 also contains some unique text not found in Page 1. How safe is it to use the unique content from Page 2 on a new page (Page 3) if the intention is to rank Page 3? Does that make any sense? 🙂

Hey guys, quick question I didn't find an answer to online. Scenario: 1. Site A links to Site B. It's a natural, regular, follow-link 2. Site A joins Site B's affiliate program, and adds an affiliate link Question: Does the first, regular follow link get devalued by the second affiliate link? Cheers!