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Expert knowledge for SEO professionals. Learn how to build, monitor, and protect your backlink profile with our comprehensive guides.

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LinkGuard cover — The $47,312 backlink lesson: why manual link tracking is killing your SEO
SEO Strategies

The $47,312 backlink lesson: why manual link tracking is killing your SEO

An e-commerce client lost $47k because nobody was watching their backlinks. 23 high-authority links vanished over 4 months. Most were recoverable — if they`d known. This guide breaks down backlink monitoring: what actually works, what doesn`t, and when you probably don`t need it at all.

Andrei

Andrei

Dec 05, 2025 • 10 min
Side-by-side comparison of a Google featured snippet quoting one page and an AI Overview summarizing several sources at the top of search results
SEO Strategies

AI Overviews vs featured snippets: what's the difference?

Two boxes can sit at the very top of Google: a featured snippet that quotes one page, and an AI Overview that writes its own summary from many. People mix them up constantly. Here's how they actually differ, whether they still show together in 2026, and the honest answer on whether you can optimize for either.

Andrei

Andrei

Jun 26, 2026 • 8 min
A Google AI Overview box at the top of search results, showing a generated summary with several cited source links above the regular blue links
SEO Strategies

What is a Google AI Overview? How it works and who gets cited

You search something and Google answers it itself, in a box above the links, citing a few sites that aren't yours. That box is an AI Overview. Here's what it actually is, how Google decides which sources it cites, and the honest truth about whether you can get in, from a team that built a free checker for it.

Andrei

Andrei

Jun 26, 2026 • 8 min
Two gauges side by side labelled Page Authority for one page and Domain Authority for a whole site, illustrating that Google ranks individual pages, not domains
SEO Strategies

Page Authority vs Domain Authority: which one actually matters?

"What's your DA?" is the reflex question on every link-buying call, and it's the wrong one. Google ranks individual pages, not whole domains, so the page-level score is closer to how search actually works. Here's why Page Authority beats Domain Authority as a signal, and why you still shouldn't chase either.

Andrei

Andrei

Jun 24, 2026 • 6 min
Two gauges side by side, one labelled DA from Moz and one labelled DR from Ahrefs, showing different needle positions for the same website to illustrate that the two third-party scores disagree
SEO Strategies

DA vs DR: what domain authority and domain rating actually mean

A link seller's list has a DR next to every row and a price that climbs with it. But Domain Authority is Moz's score, Domain Rating is Ahrefs', they're built from different link databases, and Google uses neither. Here's what each one measures, why the same site gets two different numbers, and what they're honestly good for.

Andrei

Andrei

Jun 24, 2026 • 10 min
A single website connected by many links to one node labelled one referring domain, beside many separate sites each linking once, illustrating breadth versus volume in a backlink profile
SEO Strategies

Referring domains vs backlinks: what's the difference?

Your tool shows 4,000 backlinks and 180 referring domains for the same site, and acts like you already know which one to trust. One backlink is one link; one referring domain is one site that links to you, however many times. Here's why the gap matters, which number tracks with rankings, and the blunt thing Google said about counting either of them.

Andrei

Andrei

Jun 24, 2026 • 9 min
A folder of linked Markdown files labelled OKF pointing inward to a company's own AI agent while web crawlers pass by outside, showing OKF is an internal knowledge format, not an AI-search signal
Technical SEO

What is Google's Open Knowledge Format (OKF) — and does it do anything for SEO?

Google shipped the Open Knowledge Format in June 2026 and the AEO crowd immediately called it the next way to get cited by AI. Here's what OKF actually is, who Google really built it for, and the part the hype skips: nothing on the public web reads these files yet. An honest, date-stamped guide from a team that builds AI-readable files for a living.

Andrei

Andrei

Jun 22, 2026 • 11 min
Backlink monitor comparison 2026: Ahrefs suite vs Linkody vs the acquired Monitor Backlinks — which to pick — LinkGuard
SEO Strategies

Ahrefs vs Linkody vs Monitor Backlinks: which backlink monitor in 2026?

Three tools people keep comparing for backlink monitoring — a full SEO suite, a cheap dedicated monitor, and one that quietly got acquired. An honest head-to-head on what each actually does, what it costs in 2026, and how to pick. Written by someone who builds a fourth one.

Andrei

Andrei

Jun 22, 2026 • 11 min
Semrush Backlink Audit walkthrough: set up the project, read the Toxicity Score, build the disavow file — LinkGuard
SEO Strategies

How to use the Semrush backlink audit tool, step by step

A plain click-by-click walkthrough of Semrush's Backlink Audit: where to open it, how to set it up, how to read the Toxicity Score, and how to build the disavow file. Plus the one step every other tutorial skips — what to actually do once the audit finishes.

Andrei

Andrei

Jun 22, 2026 • 9 min