PageRankGate

PageRankGate is a user-friendly and efficient piece of software designed to provide you with the ability to estimate your website's rank in Google, with the least amount of effort. Aside from checking your own domains, you can even keep an eye on your competition and see if they have improved or not when compared to you, as it supports up to 1000 entries.
PageRank is a special algorithm used by Google, alongside many others, to estimate the importance of a given website, by looking at the number of links  that go to a page and their quality. This level is used to order domains in the search engine's results.
PageRankGate is very simple to handle, featuring a less than impressive interface which lists all the domains you have added, along with their individual page rank, the first and the last date a check was performed, in order to determine if there have been any changes in the mean time, for the better or for the worse.
The application can filter the domains using a preferred keyword, or even just one letter, to display only the records of interest to you. Additionally, you can easily add new ones by pressing on the 'Add Domain' button, entering the URL address and clicking on 'Insert', then 'Save' to display it in the main window.
Every time you wish to re-verify a website's rank you can click on the 'Start Check' button and PageRankGate will soon retrieve the information for you to read. Additionally, the utility allows you export the information to an XLS file, so you can further work with the data in other programs or maintain a rigorous account of your every improvement.
To conclude, PageRankGate is a useful and reliable tool that enables you to verify your domain's rank in Google's records and see if there is something you need to do to improve your scores.