Intermediate Lessons

Is there a way to tell Google about a mobile version of a page?

Can sites do well without using spammy techniques?

Should I focus on clarity or jargon when writing content?

Does Google use EXIF data from pictures as a ranking factor?

Is there a version of Google that excludes backlinks as a ranking factor?

Should I correct the grammar of comments on my blog?

Should I build links using article directories?

How can an older site maintain its ranking over time?

Are pages from social media sites ranked differently?

Are results in different positions ranked by different algorithms?

How should I address a small duplicate content issue?

How Search Works website

Should I use a separate IP address for each country-specific site?

How does Google handle duplicate content?

What should I be aware of if I'm considering guest blogging?

Optimize the top mobile tasks on your site

Quick fixes in mobile website performance

Improving high-traffic, poor user-experience mobile pages

How can a site recover from a period of spamming links?

Is it a good practice to combine small portions of content from other sites?

How many links on a page should we have? Is there a limit?

Should I use the disavow tool even if there's not a manual action on my site?

Creating an SEO strategy (with Webmaster Tools!)

Should I add schema.org markup on my videos even if they're on YouTube?

Help for hacked sites: Touch base with Webmaster Tools

Help for hacked sites: Request a review

Help for hacked sites: Assess the damage (hacked with spam)

Help for hacked sites: Assess the damage (hacked with malware)

Does a site rank better if it has a lot of indexed pages?

How can I guest blog without it appearing as if I paid for links?

Is redirecting users based on their location spam?

Expanding your site to more languages

Should I use rel="nofollow" on internal links to a login page?

Does Googlebot care about valid HTML?

Will having the same ingredients list for a product as another site cause a duplicate content issue?

Will having a site available on both IPv4 and IPv6 cause a duplicate content issue?

What should a site owner do if they think they might be affected by Panda?

Does Google take action on automatically generated pages that provide no added value?

Is page speed a more important factor for mobile sites?

Should I add rel="nofollow" to links that are included with my widget?

Hidden text and/or keyword stuffing

User-generated spam

Pure spam

Unnatural links from your site

Unnatural Links to site

Unnatural Links to site - impacts links

Thin content with little or no added value

Should I be worried if a couple of sites that I don't want to be associated with are linking to me?