Ping-O-Matic is a service to update different search engines that your blog has updated.

Enter a page to see amount of external links, internal links and a list of nofollow links found on the page.

Rankingapp metatags is a free webshop analyzer

Serp Mojo is the best SERP tracker out there for Android! Gets better with every version! Love the pro features in the paid version. It gives information from multiple search engines. Automatic background updates

Ranks are updated daily, without having to start or keep the app open