Hi, how do you guys check the PageRank of multiple sites within minutes / seconds without getting banned ? I think that there is no API for that so I am wondering how the big SEO sites are handle this problem. A solution could be a big proxy network but is this really the only the way it goes?
There is no standard API for pagerank check so far I believe. There are scripts which uses google toolbar queries to determine pagerank of domains. Yes, proxies is the best solution so far to avoid ban.
Proxies and cache = win (because google doesn't change PR really often you can keep a really long pr cache and do checks when your server load is low)