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Practical guides on domain authority metrics: how they're calculated, what they mean, and how to move them.
Authority metrics are simple to look up and easy to misread. A number between 1 and 100 invites you to treat it as a grade, when it is really a prediction built by a third party from an incomplete view of the web.
These guides cover what each metric measures, where it comes from, and what genuinely moves it. No growth hacks, because the ones that work on the score rather than the site stop working and often cost you more than they return.
August 1, 2026 · 6 min read
What Is Domain Authority (DA)? The Complete 2026 Guide
A plain-English guide to Domain Authority: what it measures, how it is calculated, what counts as a good DA score, and its real limits.
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August 8, 2026 · 5 min read
DA vs PA vs DR: What's the Difference? (Explained Simply)
Domain Authority, Page Authority and Domain Rating sound alike but measure different things. Here is how they differ and when each matters.
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August 15, 2026 · 6 min read
How to Increase Your Domain Authority: 15 Proven Tactics
A prioritized checklist of link building, technical and content tactics that actually move Domain Authority, and which DA hacks waste time.
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October 24, 2026 · 5 min read
Why Did My Domain Authority Drop? 8 Causes and What to Do
A Domain Authority drop is usually caused by lost links, an index update or competitors growing faster. Here is how to find the cause and respond.
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October 24, 2026 · 5 min read
How to Evaluate Backlink Quality Before You Build a Link
A practical checklist for judging a backlink: relevance, authority, traffic, spam signals and link attributes, with red flags to walk away from.
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October 24, 2026 · 5 min read
What Is Spam Score? How Moz Calculates It and When to Worry
Spam Score is a Moz percentage that estimates how many sites with similar features were penalized by Google. Here is how to read it and act on it.
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October 24, 2026 · 5 min read
Domain Authority for New Websites: Realistic Timelines and First Steps
Why new websites start near DA 1, how long authority usually takes to build, and the first link and content steps that move a young site forward.
Read guideStart with the tools
Reading about a metric is more useful once you have seen your own number. Check your domain first, then come back to whichever guide explains the part that surprised you.
The DA PA checker returns all four metrics at once, the bulk checker handles up to 100 domains, and the methodology page documents exactly how every score here is calculated.