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Google webmaster tool reports "DNS lookup timeout" for the past few weeks. What may be the causes?

Seeing around 2000 errors.

How to clear this issue?

Thanks.

How to remove date stamp in the SERP?

I removed dates In the blog posts of one of the blogs and it removed date stamp in the SERP.

How about regular sites?

Thanks.

Thanks for your answer.

So if this tag is not provided, can we expect that Google will not display the date?

Thanks.

That will improve user experience in the SERP and site may see more visits. Only very lengthy or short title will send wrong signals.

Check how you are getting these pages.

Robots.txt is not an ideal solution. If Google finds pages in other places, still these pages will be crawled.

Normally print pages won't have link value and you may no index them.

If there are pages with session ids or campaign codes, use canonical if they have link value. Otherwise no index will be good.

If newly created inner page and home page target the same keyword then definitely it will be an issue.

Whereas internal links with different anchor texts will be helpful.

Yes, they act as a 301 redirect and you will lose some link juice technically.

As long as you use them for Twitter, you will be fine. Anyway Twitter is not going to pass any link value to you.

For regular link building, use actual URL.

I agree with Ryan. As long as the old URLs are out there in the web, Google will follow them.

At the same time, redirected URL list will be very lengthy if you are maintaining a big site and maintaining them will consume your resources.

Check link value of the old URLs as a first step. If they have no value then you will be fine to retire such old URLs.

Thanks Simon.

I should have added this scenario as well in my question.

For example think about the paginated pages where each page will have totally different content.

If canonical is there in the subsequent pages pointing back to the first page?

Thanks.

How to control date display in the Google video SERP?

Even if pages don't have dates in it, Google displays dates for some results.

Try with this:

Search query: Thanks video

• Check the third result.

Thanks.

I am seeing canonical implementation in many sites for non identical pages.

Google honoring these implementation and didn't have any issue.

Did anyone have different experience?

Thanks.

Thank you all.

Crawled pages per day increased dramatically in the recent weeks according to GWT.

Traffic increased and number of pages driving traffic also increased.

So trying yo narrow down the real impact.

How reliable is site command?

Is there any other way to check indexed pages.

No tool is 100% accurate in the SEO world.

If Google webmaster tool doesn't detect any error today that doesn't mean there is no error at all.

rel=canonical is a perfect solution and go for it.

Method 3 will be the ideal solution.

Step 1: rewrite the URL.

Step 2: 301 redirect.the old to new URL

http://www.seomoz.org/blog/url-rewrites-and-301-redirects-how-does-it-all-work

I would suggest keyword density not to exceed 2 to 3%.

Excessive usage will lead to keyword stuffing penalty.

Less usage may not relay the topic relevancy to search engine.

http://tagcrowd.com is a nice tool to visualize keyword concentration in any page.

You need to see if the vendor has any innovative approach for link building. Make sure they are transparent on the process they are going to implement for your site.

Don't decide based on the existing clients. You might have read the story about JC Penny. The vendor that provided services to JC Penny is still doing business with fortune companies.

http://searchengineland.com/new-york-times-exposes-j-c-penney-link-scheme-that-causes-plummeting-rankings-in-google-64529