When I submitted my site's sitemap in WMT it saying 301 redirected for www why is that?

Isn't that going to create problem in the long run?

Anyone can find any domain right, say I myself found a domain yesterday which is 'postchristmaslottery.com'. But how should I know that the domain I discovered is actually worth something in the real world or so? I bet you guys don't just go around buying domains in whichever you guys lays eyes into too, right? You verify the domain whether the domain is worth something or not?!

Which is the simplest way to do that?

How should a company measure social media marketing success?

Some old posts of mine gets pretty decent traffic. Even though they are outdated they still manage to get some hundred views from the search engines daily. Touching them will result in disrupting the good amount of traffic.

But I want to update the information as they are outdated heavily. What should be the approach here?

which off-page activities can provide instant backlinks?

Name the four important meta tags in SEO and what are their character limits?

Its a hypothetical question. If you are attacked by any spammer or a competitor, who is building irrelevant links or spammy links to your site then what will be your strategy to counter it?

I know some guys whose sites were attacked in the same way. So, I am concerned about these things.

What are some good tools/platforms to use for A/B testing independent websites?

What strategies would you use to generate leads?

If anyone invest in Google Ads then can it get the app well ranked in the PlayStore? Is it possible?