How to Check Backlink Quality: 7 Smart Signals

By Istiak Ahmed Soikot, Founder and CEO, Rank OG. Last reviewed: November 2026.

Learning how to check backlink quality starts with relevance, real traffic, link placement, anchor text, and trust signals on the linking site. A strong link comes from a real, relevant page, while a weak one comes from a spammy or unrelated site.

This guide is for small business owners and marketing leads who want a plain, repeatable way to learn how to check backlink quality. You will get seven signals, a free way to find your links, and clear advice on the weak ones. New to the topic? Start with our link building basics guide, then come back here to audit what you have.

What makes a backlink strong in the first place?

A strong backlink is a vote of trust from a real page your readers would find useful. Google still uses links to judge whether a page deserves to rank, and the linking page’s quality matters far more than the raw count. One link from a respected site in your field beats a hundred links from sites nobody visits.

Think of it like a recommendation: a referral from a trusted expert in your trade carries weight, while praise from a stranger who flatters everyone carries almost none. Search engines read links the same way. A quick count of your backlinks tells you very little on its own.

How to check backlink quality in Google Search Console

Google Search Console is the free starting point: it shows the links Google actually found. Open your property, go to Links, and look at the External links section. You will see top linked pages, top linking sites, and the anchor text other sites used. Export the data first, so you can sort it and work through it in batches.

Search Console will not grade your links. The Links report is descriptive only: it lists what Google found, with no score, no flag, and no verdict on any link. That judgment is yours to make, using the seven signals below. For a fuller picture, pair this export with Ahrefs or Moz for traffic, authority scores, and lost links.

How to check backlink quality: the 7 signals that matter

You can learn how to check backlink quality without a paid tool, just by opening the linking page and looking closely. Use them as a checklist for every link you review. A strong link passes most of them; a weak link fails several at once.

Signal 1: Is the linking site relevant to your topic?

Relevance comes first in how to check backlink quality, because a link should make sense to a reader. A plumbing company linked from a home repair blog fits. The same company linked from a casino forum does not, and that mismatch is a warning sign. Ask one question: would a visitor to this page care about my business? If the answer is no, the link is weak, whatever the numbers say.

Signal 2: Does the linking page get real traffic?

Traffic is the second check in how to check backlink quality: a page that real people visit is worth being linked from. Check the linking page in a backlink tool for its estimated organic traffic. Steady traffic from search usually marks a genuine resource. A page with zero traffic, no rankings, and thin content may exist only to host links.

Signal 3: Is the link in the main content, not the footer?

Placement is the third check in how to check backlink quality, and it tells you how the link got there. A link inside the main body of an article, surrounded by sentences that relate to your page, is an editorial link, the strongest kind. Links buried in footers, sidebars, or sitewide templates appear on every page of the site. Google’s spam policy names widely distributed footer and template links as link spam, so treat them with care.

Signal 4: Does the anchor text read naturally?

Anchor text is a fast tell when you know how to check backlink quality: natural anchor text sounds like something a writer would choose. Brand names, plain URLs, and phrases such as “read more” are normal. A red flag is the same exact-match keyword phrase repeated across many links, such as “best cheap plumber Austin” pointing at your homepage. That pattern looks manufactured: real writers do not all choose the same words.

Signal 5: Is the link followed, and does that matter?

Links can carry a rel attribute that tells Google about the relationship: sponsored for paid placements, ugc for user comments, and nofollow when the owner wants no association. Google treats these as hints, so marked links generally do not pass ranking credit. That does not make a nofollow link worthless. Part of how to check backlink quality is judging a nofollow link on traffic and trust, since it can still send visitors and build your name.

Signal 6: Does the linking site look trustworthy?

Open the linking site and look at it the way a customer would: real authors and fresh content, or a thin site full of spun articles and ads? Trust is the hardest part of how to check backlink quality, and third-party scores can help. Ahrefs Domain Rating runs from 0 to 100 and measures the strength of a site’s backlink profile. Ahrefs warns never to judge a site on authority alone, and a low score does not prove a site is spammy. Moz Spam Score, from 1 to 100 percent, estimates how closely a site resembles sites Google has penalized: 1 to 30 is low risk, and 61 to 100 is high. Use these scores as a screen, then trust your eyes.

Signal 7: Is it one link among many, or one of hundreds?

The last step in how to check backlink quality is to count referring domains, not raw links. One hundred links from one hundred different sites are worth far more than one hundred links from a single site. Also check how many other sites the page points to. A page that links out to hundreds of unrelated sites passes very little value to any one of them. Ahrefs puts it plainly: a link from a modest site that links to five other domains can carry more weight than a link from a strong site that links to thousands.

Strong backlink vs weak backlink: a quick comparison

Once you know how to check backlink quality, the difference between strong and weak links is easy to spot.

Signal	Strong backlink	Weak backlink
Relevance	Same topic or closely related field	Unrelated niche, such as a casino site
Traffic	Linking page gets real traffic	Linking page has no traffic or rankings
Placement	Inside the main article body	Footer, sidebar, or sitewide template
Anchor text	Natural, varied, often branded	Same exact-match keyword everywhere
Link type	Followed editorial link	Paid link with no sponsored tag
Trust	Real authors, contact page, fresh content	Thin content, no author, heavy ads
Outbound links	Links to a small number of sites	Links out to hundreds of sites

The verdict is simple: a link that reads like a genuine recommendation from a real, relevant page is worth keeping. A link that fails four or more signals is adding little, and your time is better spent earning better links.

What should you do with a weak or spammy backlink?

Most weak links need no action. Google’s systems already discount links they do not trust, and a few junk links to a healthy site are normal. First check whether you have a real problem: open the Manual actions report in Search Console. If it shows nothing about unnatural links, you do not have a penalty to fix.

Knowing how to check backlink quality matters most before you act: the disavow tool is easy to misuse. Google says most sites never need it. Use it only when you have many spammy, artificial, or low quality links and they caused a manual action, or one looks likely. If you meet that bar, first try to get the links removed, and keep a record of your attempts. Only then upload a disavow file, one URL or domain per line, with domains prefixed as domain:example.com. Google can take a few weeks to process it as it recrawls the web.

Never pay a service that promises to clean up your profile by disavowing hundreds of links at once. A careless disavow file can throw away good links with the bad ones, and Google warns that misuse can harm your site’s performance in search.

How often should you check your backlinks?

For most small businesses, a full review once a quarter is enough. Check sooner after a sudden traffic drop, a Search Console warning, or a sharp spike in new referring domains you do not recognize. A spike often means someone built links to your site without your knowledge, and that deserves a look.

Between reviews, keep a light watch: a monthly Search Console export, and a glance at the newest linking domains. When you learn how to check backlink quality as a routine, you catch problems while they are still small and cheap to fix.

What to do next

Now that you know how to check backlink quality, put the checklist to work with these five steps.

Export your external links from Google Search Console and sort by linking domain.
Score your top 20 linking domains against the seven signals.
Open the Manual actions report and confirm there is no unnatural links warning.
Note the weak links, then focus on earning better ones. Our guide on how to get quality backlinks as a small business shows where to start, and our link building vs link earning guide explains which approach fits.
Repeat the review every quarter and keep a simple sheet of what changed.

Frequently asked questions

How can I check backlink quality for free?

The free way to learn how to check backlink quality starts in Search Console. Open it, go to Links, then External links, and export your linking sites. Review each linking page for relevance, traffic, and placement in the main content, and use checkers for Domain Rating and Spam Score.

What is a good Domain Rating for a backlink?

There is no single good score, because Domain Rating is relative. Ahrefs says a score is good when it is higher than or comparable to similar sites in your niche. Compare the linking site with your competitors, and judge relevance, traffic, and placement too.

Do nofollow backlinks help at all?

Yes, they can still help, not in the same way. Google treats nofollow as a hint, so the link may bring referral traffic, brand exposure, and a natural looking profile. A nofollow link from a popular, relevant page is worth more than a followed link from a spammy directory.

How many backlinks do I need to rank?

There is no fixed number, because it depends on your competitors and the keyword. One strong link from a trusted, relevant site can beat dozens of weak ones. Check the pages ranking for your target keyword, count their referring domains, and aim for similar or better links.

Should I disavow low quality backlinks?

Usually no. Google says most sites never need the disavow tool, because its systems already discount links it does not trust. Use it only when spammy links caused a manual action, or one looks likely. Try to get bad links removed first, and keep a record.

Sources

Sources checked November 2026.

Want a second pair of eyes on your link profile? Get a free SEO audit from Rank OG and we will review your backlinks and flag the weak ones. You can also reach us through our contact page.