I have noticed in my logs that the Googlebot has recently been hitting certain pages on my site with "?iframe=true&width=100%&height=100%" appended. I don't use these query values and they are to be found nowhere on the Internet as far as my site is concerned (at least, I haven't found them, and I've looked pretty hard), yet they consistently show up in my logs, always with the Googlebot agent and their IP 188.8.131.52.
It appears that the particular threads hit this way all have something in common: they contain a healthy portion of Amazon affiliate links (links to Amazon including my affiliate ID so we can try to get a referral from the info we're providing).
These threads aren't SOLELY links - I take pride in including a lot of supplemental information to go along with store links, but I'm wondering if I've passed some magic unknown Google threshhold to get them tagged as spammy or not useful or at least requiring another look - and if the "?iframe=true&width=100%&height=100%" is a clue that that's what's happening.
So I guess I have two questions:
Is anyone else seeing the Googlebot append a query string when crawling your site and if so, do you notice any pattern to the links that are being crawled this way?
Has anyone noticed that some percentage of linked text (Amazon or otherwise) on a page will keep that page from showing up in results?
In the past, as my results have traveled up and down in the rankings, I've been content to ride it out and just wait for the next Google change, but now that I'm not appearing AT ALL and also seeing these pretty strange Googlebot hits, I figured it didn't hurt to ask around. :)