Whether it is business, entertainment, politics or search engine optimization (SEO), once a myth has been established it hard to get rid off. Below we have compiled a listing of a few of the myths that have surfaced in 2013 and were debunked by Matt Cutts, head of search quality at Google.
1. Google Penalizes For Invalid HTML
There are many reasons to write good, clean and validated HTML code, but it does not always happen. Since there are a huge number of websites with less than perfect HTML code Google does not penalize sites that have broken or invalid HTML and does not use validated HTML code as a ranking signal.
2. Duplicate Content Gets Your Site Penalized By Google
Duplicate content is not considered spam and sites do not get penalized for duplicate content. Google ignores duplicate content and has a way to determine which page they should rank. However, massively duplicated content that is created to manipulate the system is considered spam and could lead to a penalty.
3. 301 Redirects Causes PageRank To Dissipate More Than Regular Links
301 redirects and a regular follow links pass the same amount of PageRank. So there is no reason not to use 301 redirects because they squander PageRank.
4. +1s Improve Rankings in Google Web Search Results
There is currently no correlation between Google web search rankings and +1s. +1s do not have any impact on search rankings at Google.
5. More Pages Equals Higher Rankings in the Google Search Results
Websites with a large number pages in the Google index do not automatically get higher rankings in the Google search results. However, more pages offer the opportunity to rank for a larger variety of keywords and more content can lead to more links.
6. NoFollow Attributes On Internal Links Gets Your Site Penalized
Adding Nofollow attributes to internal links does not have any effect on Google search rankings and does not get a site penalized. However, there are better ways to prevent a page from getting indexed for instance Noindex.
7. Page Load Speed Is More Important For Ranking in Google Mobile Search Results
Page load speed is not a more important ranking factor for mobile pages than for desktop pages. The page speed ranking factor is applied equally on mobile and desktop pages.
8. Googlebot Crawls Up To 100 Links Per Page
Googlebot can crawl more than 100 links on a page and there is no specific (known) limit.
9. Google Implemented Panda & Penguin to Make People Buy More Ads
Matt Cutts says (at the 1:00 time point in the video) it is a myth that Google implemented the Panda and Penguin updates to drive more short-term ad revenue. Search algorithms and organic search results are completely separated from revenue goals.