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Any tools for website testing which perform load,stress,functionality, checks the all links spelling..
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Sameer the tests that you mention here are very diverse which cannot be achieved by any single tool.
For functional testing of websites you can use Selenium which is a freeware and if your company intends to spend some money then you can always go for the likes of QTP and all.
Again for Load & Stress you can use OPENSTA, JMeter which are freeware and then you have LoadRunner which will cost you.