Its a long list.. Read this thread, it will give everything about this http://forums.digitalpoint.com/showthread.php?t=413544
Hi, Do include your main Keyword in your URL, Also make sure the keyword is in the Heading, Title and in the first paragraph of your text. Make sure that you include contextual links and also a links page. Make sure that you have a good Meta Description that incudes your main keywords and also the same for Meta Keywords. Don't Spam, in other words do not over use your keywords. Hope that is helpful
Only when your web pages are optimized well, your off page (promotion of your site) will result better. Prefer to use the keyword as the first word in page title. Though your meta description is not used for rankings by the search engines it would be helpful to drive the traffic from any ranking position. Website URL has to be shorter that would perform better. The H1 tag, Alt tag, no broken links are great importance in on-page optimization. Try to avoid keyword stuffing..
Use the unique title to all the pages of your website Target proper keywords so it is useful to get proper result create a HTML & XML sitemap submit your site to webmaster tool Don't stuff the keywords in the website
Failed to authenticate your site ownership due to the following reasons: We looked for the Meta tag <meta name="y_key" content="6f9dac3228ba72c8" /> on your site's home page: http://www.abcd.com. We did not find the meta key 6f9dac3228ba72c8 in the page. Error: Authentication Key not found. Try: We were unable to fetch the verification file (y_key_d4b5e73951ae0261.html) from your site. Error: not found (http 404) Try: How to solve it. I have all in one webmaster tool plugin... But confused which part should be pasted in the yahoo site explorer box. Only the content [6f9dac3228ba72c8] or the entire thing [<meta name="y_key" content="6f9dac3228ba72c8" /> ]??? Pls help
I guess, I got your issue.. Every time Yahoo gives wrong Meta to put in your site to verify.. I am not sure but check Is yahoo giving you <meta name="y_key" content="6f9dac3228ba72c8"> to put in your site if yes then add a "/" like <meta name="y_key" content="6f9dac3228ba72c8" /> and then put in your site and then verify.. I have seen every time it happen with yahoo.. it may be case also with you.