There are three useful ways to classify backlink types: by their HTML attribute, by where they sit on the page, and by how they were acquired. Every list of “17 types of backlinks” you have read is really mixing those three axes together, which is why none of them help you decide what to build next. Sort them properly and the priorities become obvious.
The short version: an editorially placed, followed link from within the main content of a relevant page on a site that has its own audience is worth more than a hundred of anything else. Everything below explains why, and what the lesser types are still good for.
Axis one: link attributes
The rel attribute on a link tells search engines how to treat it. Four values matter.
- Followed (no rel attribute). The default. Passes ranking signals. This is what you want.
- Nofollow (
rel="nofollow"). Introduced in 2005 to fight comment spam. Since 2019 Google treats it as a hint rather than a directive, meaning it may still be used for ranking purposes. Do not assume nofollow links are worthless — they carry referral traffic, brand visibility, and profile diversity — but do not build a strategy on them. - Sponsored (
rel="sponsored"). For paid or affiliate placements. Using it correctly on links you paid for is the honest disclosure that keeps you out of trouble. - UGC (
rel="ugc"). User-generated content — comments, forum posts. Also a hint.
A natural profile contains a mix of all four. A profile that is 100 percent followed looks manufactured, because real websites link with real markup and plenty of platforms apply nofollow automatically.
Axis two: placement on the page
Where a link sits changes its value substantially, and this axis gets ignored far too often.
In-content editorial links sit inside the main body, surrounded by relevant prose, placed because the author decided their reader would benefit. These are the most valuable links that exist. The surrounding text gives the link topical context, and the editorial decision is the trust signal.
Author bio and byline links come from guest contributions. Real but modest value, and heavily discounted when the same bio appears across dozens of sites.
Sidebar and footer links appear on every page of the linking site. They are the reason total backlink counts get so inflated — one placement can produce 50,000 backlinks and one referring domain. Search engines have discounted sitewide boilerplate links for many years. Judge these on referral traffic, not authority.
Comment and forum signature links are almost always nofollow or UGC and carry effectively no ranking weight. They can still send genuinely useful traffic if you participate honestly in a community.
Axis three: how the link was acquired
This is the axis that determines both cost and risk.
- Earned. Somebody linked because your page was worth citing. Original research, a free tool, a definitive resource. Highest value, slowest to accumulate, zero risk.
- Outreach-built. You asked. Broken link recovery, unlinked mention conversion, resource page inclusion, expert quotes for journalists. This is where most legitimate link building happens, and a well-qualified campaign converts at roughly 5 to 15 percent.
- Self-created. Directories, profile pages, social bios, business listings. Low ranking value, but the relevant industry and local ones establish legitimacy and are worth an afternoon of setup.
- Paid. Money changed hands for a placement. Against Google’s guidelines unless marked
sponsored, and vendors selling from a rate card are usually selling to your competitors from the same list. - Manipulated. Private blog networks, link farms, automated blasts, expired domain redirects. These are the ones that draw penalties.
Which types are actually worth pursuing
Ranked by value per hour invested, for a typical small or mid-sized site:
- Unlinked brand mention conversion. Someone already wrote about you. Asking them to link converts far better than cold outreach — commonly above 30 percent. Start here, always.
- Broken backlink recovery. Links pointing at dead URLs on your own site. Fix with a redirect. No email needed. Free authority.
- Digital PR and original data. A survey, an analysis, a benchmark report. Expensive to produce, and the only reliable route to links from genuinely authoritative publications.
- Free tools and calculators. Build once, accumulate links for years.
- Resource page inclusion. Pages that exist to list useful things in your niche. Straightforward pitch, decent hit rate.
- Podcast and interview appearances. An hour of your time for a contextual link plus an audience.
- Supplier, partner, and association pages. Relationships you already have. Just ask.
What to stop paying for
Some categories are consistently a poor trade. General-purpose directory submissions to sites with no editorial standard add nothing. Guest posts on “write for us” sites that accept anything are a market Google understands well. Private blog networks are the highest-risk purchase in SEO — the whole point is deception, and detection means the network’s links stop counting overnight, taking your rankings with them. Comment link packages and forum profile blasts have not worked in over a decade.
Cost estimates you see for links anywhere, including in tools, are directional. Real prices swing enormously by niche, and relevance and quality decide outcomes far more than the number of placements. Treat any per-link figure as a planning aid, not a quote.
How to audit your current mix
Pull your backlink profile and answer five questions.
First, how many referring domains do you have, versus total backlinks? A huge gap means sitewide links dominate. Second, what is the followed-to-nofollow split? Third, what does the anchor text distribution look like — a natural profile skews heavily toward branded and URL anchors, with exact-match commercial anchors as a small minority. Fourth, how many links sit in main content versus footers and sidebars? Fifth, how many new referring domains have you added in the last 90 days? Velocity often matters more than the total, because steady growth reads as a business that keeps earning attention.
Then run the comparison that matters: the same five questions for the weakest site currently on page one for your target term. If result number nine ranks with 18 referring domains and mostly branded anchors, that is your target. Benchmarking against the market leader produces plans nobody finishes.
The rule that outlasts every tactic
Links are necessary but not sufficient. Every serious page-one position sits on some link support, so you cannot ignore them. But a thin page with strong links still loses to a substantial page with adequate links, and a well-linked page that does not answer the query will not hold its position through the next core update.
Build the page that deserves the link first. Then pursue the types at the top of the list above, ignore the ones at the bottom, and measure in referring domains per quarter rather than rank movements per day — daily swings of two or three positions are normal noise on almost every query.
SEO Rocket’s site explorer shows referring domains, anchor distribution, top pages, and spam flags for any domain, and its backlink gap produces a named outreach list of sites linking to your competitors but not to you, with directional cost bands by niche. Flat US$50 a month. The taxonomy above works with any tool — what matters is that you spend your hours on the types that actually pay.
