Seems like it would be a great tool to keep track of these things.
http://www.boxuk.com/blog/the-ultimate-website-launch-checkl...
Serious question. Does this have any impact anymore?
In a nutshell,
* The keywords meta tag is no longer used.
* The robots meta tag is extremely useful.
* The description tag may be used to display along with a page's title.
* Neither description nor keywords meta tag have much impact for SEO.
Personally, I don't use the keyword meta tag and I may or may not use the description meta tag.
Somewhere out there, there is a search engine that still uses keyword tags for something significant, but I doubt that search engine is Bing (which now powers itself and US/Canada Yahoo).
References:
http://googlewebmastercentral.blogspot.com/2009/09/google-do...
http://www.google.com/support/webmasters/bin/answer.py?answe...
http://searchengineland.com/yahoo-search-no-longer-uses-meta...
If necessary? Seriously? You are trying to tell me that you are not convinced that someone who should do all of the other steps listed might not need to worry about security?
You're often much better off saying that your site has a certain level of security because it's built in default thing X until it grows a bit.
Generally you'll know already if you're in a market or field where penetration testing is absolutely necessary(finance, health, well known brands etc) and it won't be a question.
In all of the above cases I would consider security while creating, but I wouldn't do a lengthy pen test while trying to get the product out there. Of course that's also dependent on your target audience.
There is really no point in us discussing this further. We have dramatically different assumptions on the importance of security and the value of a company's image/reputation.