What Is a Nofollow Ratio?

A nofollow ratio is the share of your backlinks carrying rel="nofollow", ugc or sponsored instead of passing ranking signals. Google publishes no target for it, and most real profiles land loosely between 20% and 40% nofollow. The ratio isn't a score to optimise — it's a symptom that tells you where your links came from.

That distinction is the whole point of this page. Nobody has ever been penalised for a nofollow percentage. But a ratio sitting far outside the normal range is a reliable tell about how a link profile was assembled, and that is something Google's systems care about a great deal.

What the ratio actually measures

Since September 2019 there are three attributes that stop a link passing full ranking credit, and most tools lump them together into one "nofollow" bucket:

Attribute	Used for	Who applies it
`rel="nofollow"`	The original catch-all	Legacy sites, forums, many CMS defaults
`rel="ugc"`	User-generated content	Comment sections, forums, Q&A sites
`rel="sponsored"`	Paid or compensated placements	Advertorials, affiliate links, sponsorships

Google announced at the time that from March 2020 it would treat all three as hints rather than strict directives — meaning it reserves the right to use a nofollowed link for ranking if it judges that appropriate. In practice you should still plan on getting nothing from them. Dofollow vs nofollow links covers the mechanics of each tag, and do ugc-tagged links pass value goes deeper on the middle one.

Why the number your tool shows is usually wrong

Backlink tools calculate the ratio across total links, not referring domains. That single choice distorts the figure beyond usefulness.

Say one forum links to you from 4,000 pages, every link ugc-tagged, plus you have 90 dofollow links from 90 separate publications. Your tool reports 98% nofollow. Your actual profile is 90 real endorsements and one forum. The ratio has described something that isn't true about your site.

Deduplicate by referring domain before you read the number — the same correction that matters for anchor text ratios and for the same reason. Referring domains vs backlinks explains why the two metrics diverge so sharply.

The range real profiles fall into

Once you're counting domains, most naturally-grown sites sit somewhere in this band:

20–40% nofollow is unremarkable and describes the majority of sites.
Under 10% nofollow is unusual. Sites that get talked about organically pick up Reddit threads, Wikipedia citations, forum mentions and social profiles almost by accident — and nearly all of those are nofollowed.
Over 70% nofollow usually means the profile is made of social, forum, directory and comment links rather than editorial ones.

These are observed patterns, not thresholds Google enforces. Treat them the way you'd treat a normal blood-pressure range: worth a look when you're outside it, not a diagnosis on its own.

What a skewed ratio is actually telling you

This is where the metric earns its keep. Both extremes point at a specific problem, and in neither case is the problem the ratio.

Very high nofollow — say 85% or more. Almost nothing in your profile is a genuine editorial vote. The links exist, they're not dangerous, and they're not moving rankings either. Quora, Reddit and social profiles are all worth having for traffic and brand discovery — but a profile made only of those has no ranking engine in it. The fix is building editorial links, not removing anything.

Very low nofollow — say under 5%. This is the more interesting signal. A profile of almost exclusively dofollow links is not what happens to a site that grows on its own. It's what happens when every link was deliberately placed, bought or exchanged. Nothing about that automatically breaches Google's link spam policy — but it's a footprint, and it usually travels with the patterns that do: repeated commercial anchors, a narrow set of source types, and links that all appeared in the same few months.

If you only remember one thing: a suspiciously clean profile is a bigger risk signal than a messy one.

How to check yours properly

Twenty minutes, no paid tool needed for a rough read:

Export your backlinks from Search Console plus whatever crawler you use. Search Console doesn't report follow status, so you'll need a third-party source for the attribute itself.
Deduplicate to one row per referring domain. Keep the dofollow status if any link from that domain is dofollow — one editorial link buried under 3,000 forum signatures is still an editorial link.
Count the split. Two numbers; that's the whole exercise.
Sort the dofollow list by date. If most of it appeared in a tight cluster, that's more informative than the ratio ever was.
Ask the diagnostic question: could this mix have happened without me? Not "is this the right percentage."

If you have fewer than about 50 referring domains, the ratio is noise. Stop and go build links instead.

What to do about a ratio you don't like

Almost nothing, directly. You don't fix a nofollow ratio by adding filler nofollow links to balance it out, and you certainly don't fix one by removing links.

You fix the underlying profile:

Too few dofollow links? Build editorial placements — guest posts, resource page inclusions, digital PR, exchanges. The ratio corrects itself as a side effect.
Too few nofollow links? This usually resolves on its own the moment you stop building only dofollow links and start doing things that get you mentioned. Podcasts, Reddit participation, review-site profiles and press coverage all add nofollow naturally.
Either way, widen the source types. A profile drawing from ten kinds of site looks like a business. One drawing from a single kind looks like a campaign.

How to audit your backlink profile walks through the full review this ratio is one small part of.

Where link exchanges fit

Exchanges sit firmly in the dofollow column, which makes them useful and makes discipline matter. If exchanges are the only thing you do, you build exactly the profile described above — clean, editorial-looking and entirely deliberate.

The mix is what saves it. Backlinkster places 1-for-1 in-content dofollow swaps with real site owners and verifies each one stays live by code, so the links you build are genuinely passing value rather than quietly nofollowed after the fact. Run that alongside the nofollow sources you'd pick up anyway and neither half of the ratio looks engineered. Free accounts get five verified swaps a month — see the plans.

Frequently asked questions

What is a good nofollow to dofollow ratio? There is no official figure. Most naturally-grown profiles sit between 20% and 40% nofollow when measured by referring domain. Anything inside that band is unremarkable; outside it, look at why rather than trying to hit a number.

Does Google penalise a bad nofollow ratio? No. Google has never described a nofollow ratio as a ranking or spam signal. What its link spam systems act on is links intended to manipulate rankings — and an unusually low nofollow percentage often accompanies those, which is why the ratio is useful as a symptom rather than a cause.

Do nofollow links help SEO at all? Indirectly, yes. Since March 2020 Google treats nofollow as a hint rather than a directive, so some may be used for ranking. More reliably, they drive referral traffic, get your brand mentioned in places crawlers and AI systems read, and make your profile look like it belongs to a real business.

Should I add nofollow links to balance my ratio? No. Manufacturing nofollow links to adjust a percentage is effort spent on a number nobody scores you against. Build real editorial links and participate where your audience already is; the ratio follows.

How do I check if a backlink is nofollow? View the source of the linking page and look for rel="nofollow", rel="ugc" or rel="sponsored" on the anchor tag. Most backlink tools flag it automatically, and browser extensions can highlight nofollowed links on a page as you read it.

Does the nofollow ratio matter for internal links? No. Nofollowing your own internal links is almost never useful — Google's guidance has long been that it isn't an effective way to shape crawling or sculpt PageRank. Use proper site structure and canonical tags instead.

The bottom line

The nofollow ratio is a diagnostic, not a dial. Deduplicate by domain, look at the split, and ask what it says about where your links came from. A profile that's 80% nofollow needs editorial links. A profile that's 98% dofollow needs to stop looking like a campaign. Neither of them needs the percentage adjusted.