Is sitemap is necessary?

Is Google site map is important ?I m working on site but i forget id of webmaster..If i verified my site again then i have to include verification code in my site which is already there...Is it have any effect my site PR is 3..

 

Yes a sitemap is important but It sounds like you have already submitted one to Google?

 

Yes, Google SiteMap has a great importance. Sitemap helps to index your webpages.

 

Having sitemap is not a necessity but it can help you boost the indexing speed of your website.

 

It is meant to boot lick Google because they like it.
Your website index faster.
You get all your pages index faster.
Whenever you add new pages, Google notice it faster.
Whenever you have changes, Google notice it faster.

 

Sitemap is intended to help the bots crawl your site better. Even without that you would be ok. But its always better to play by the rules.

 

Yes, it's useful!

 

Thanks for the post- I always wondered about how important sitemap was.

 

Sitemaps are of little to no use unless your site has hundreds of thousand or millions of pages and you want to prioritize which pages should be indexed first or if your site has a crappy navigation/interlinking structure making it uncrawlable.

Sites with hundreds, thousands, or even tens of thousands of pages are perfectly fine with sitemaps as long as they are crawlable and have a good navigation/interlinking structure for their pages.

Sitemaps do NOT get more pages indexed (unless you have a site w/ crappy navigation/interlinking causing it not to be crawlable)... Sitemaps do NOT speed up indexing (the search engines simply use theme to help crawl the site whenever THEY decide they want to crawl it)... It's used to "assist" in crawling meaning they use it to find URLs they might not otherwise have found because of the crawlability of the site... and to prioritize which pages you'd prefer to be indexed over other pages on your site.

If you have a brand new site that has no inbound links, submitting a sitemap might help you get indexed. But if you continue to have no inbound links, your site may be dropped soon after. I would simply wait on your site to get inbound links and let the search engines discover it naturally.

 

i think, sitemap is needed at BIG sites, small site can go to index by social bookmarks/rss/links from hiPR sites

 

It is important factor.....but not at all compulsory....if your pages are getting indexed easily or in short span of time then there is no need of submitting site map...but if it not..then it is required.

 

Sitemap is one of the factor in seo. But even without sitemap, if your links are crawlable then google should have no trouble going through your site and indexing everything it can find. Thats what it is for - google bot or google spider...

 

No Doubt Sitemap is one of the important factor in seo. But even without sitemap your site can rank on google with the help of social bookmarking,link building from high PR websites

 

With a sitemap, google loves you more.
When google sees something they recognise and they love, they come often.
When google sees messy and disorganized websites, they will stay away.
This is how it explains why Google loves web2.0 sites.

 

sitemap is very helpful
1. it will help your visitors to access/find the page they're looking for
2. it's easier for bots to crawl all your pages

 

site maps help your sites pages get index faster

 

Yes i feel we need sitemaps to make website crawl easily , we can have XML or even text file will be accepted by SE's

 

Site map is the index of the site. So it used to crawl our site easily by spiders. When spider has enter in our site it looking first that site have site map....So site map will help to get index soon....If a site map have in a site, its called SEO friendly site.....

 

You can remove the verification meta key which is already there, and replace it with a new one from your new Webmasters Tools account. It should not have any effect whatsoever on your current PR.

 

Not important but useful. If you submit the sitemap you can see how many pages are indexed.