| google panda | Google Panda is the name of a series of Google algorithm updates that evaluate a websites quality of content. Websites with low quality content and a high number of ads see a loss in search rankings when the algorithm is updated. |
| meta descriptions | HTML elements that describe the contents of the page that theyre on. Google sometimes uses these as the description line in search result snippets. |
| crawl errors | Crawl errors are errors that occur during the crawling process by a search engine bot or other crawler. Errors could include DNS errors, server connectivity issues, or errors caused by the unavailability of a resource such as the Robots.txt file. |
| internal pagerank | Noun phrase. This is the actual static value that Google computes and adds to dynamic (run-time, query-time) relevance scores to determine search results rankings. Matt Cutts distinguished between Internal PageRank and Toolbar PageRank on his blog. He also confirmed that he was talking about Internal PageRank where I cited him in my PageRank: Where it helps, where it doesnt help, and other facts post at Spider-Food in July 2006 (no longer available). Most SEO forum moderators and admins appear to be speaking about Internal PageRank when they discuss PageRank at all, except where they qualify their remarks to address the Toolbar PR value (that nearly all moderators and admins now tell people to ignore). The Toolbar PR value is a proxy value and it is only published 3-4 times a year, making it a virtually worthless indicator of quality or value. |
| structured data and schema | Special website code that gives search engines extra information about the content on your website; that information is sometimes displayed in search results, such as star ratings. |