// 8 ARTICLES BY MARTIJN CO
Moz logo on a search dashboard
seo_tools
Moz: SEO tool, MozBar and more
Moz is a Seattle SEO company behind MozBar, MozCast, Page Authority and Domain Authority. Here is what each one does.
Warning sign over a link graph
seo_tools
Moz Spam Score: should you take this metric seriously?
Spam Score is Moz's attempt to flag spammy pages and links. Useful as a signal, dangerous as a verdict. Here is when to trust it.
Trust Flow score on a dashboard
seo_metrics
Trust Flow
Trust Flow is Majestic's metric for how trustworthy your backlinks are. Here is how the score works, where to check it, and how to improve it.
Google search results on a screen
search_engines
Google, the largest search engine in the world
Google indexes billions of pages every week. Here is a plain explanation of how it works, what SEO means inside it, and where it goes next.
Domain Authority gauge in a dashboard
seo_metrics
Domain Authority by Moz
Domain Authority measures a site's strength based on its incoming link profile. Still useful, but easier to manipulate than the alternatives.
Citation Flow versus Trust Flow comparison chart
seo_metrics
Citation Flow: what it is, why it matters, and where to check it
Citation Flow measures link quantity. Trust Flow measures link quality. Use the two together and you have a clear authority picture.
Mockup of a high converting landing page
seo_basics
Landing page
A landing page exists to drive one specific action. Here is how to plan one, write one, and make sure it ranks.
Different search engine logos arranged together
search_engines
Search engine
A search engine helps you find webpages relevant to your query. Here is how they work, which ones lead in the Netherlands, and how to advertise inside them.