I've just finished coding backlink checking tool: http://reverseinternet.com/backlinks/ and would like to get some feedback on it. I'm specifically interested in how fast does it load for you? How do you like the overall design? Do you find the tool useful? What data/functionality would you add to it? Any other general comments. There are some things that I know need improvement (and I plan to improve them): Number of links displayed will improve with time. Response speed for queries against large websites will get better. I'll add alexa ranking and possibly domain PR to each result so that it would be easier to tell which link is worth what. Page navigation will not be limited to prev/next page in the future. All in all - the tool is still alpha grade material and that's why I'm asking for feedback.