Can any one tell me about some software which can analyse some sites and tell problems or recommend thing for onsite optimization. E.g meta tags lengths ,title,link struscture,broken links etc Thanks in advance
I think there is no free software for this, however SEO QUAKE of firefox will give some info about meta info and keywords which is very easy to understand and correct.
Dont know any free software as you request. However, Website grader can tell problems or recommend thing for onsite optimization.
use pingdom.com for knowing about site load time.For tag analysis,it can be done by yourselves as it is not a big deal at all.
I suggest you to use Google Webmaster, Google Analytics and Link Diagnosis for On-page suggestions for your site..