Most link building agencies are selling garbage.
That is not a hot take. It is a fact you will discover after you spend $2,000 on a month's worth of "premium guest posts" and check where they actually landed. A DR 8 blog that publishes 40 articles a day. A "tech news" site that is actually a link farm with a thin coat of paint. Links on pages that will disappear the moment you stop paying.
The market is flooded with bad actors. The services look identical on the surface. And most buyers do not know what to check until it is too late.
Here is how to hire an agency that actually builds links worth having.
Link building has a low barrier to entry and a high barrier to quality.
Anyone can set up an agency, charge $500/month, deliver 10 links on sites they own or pay $5 for placement on, and collect payment before the client figures it out. By the time you notice your rankings did not move, they are on to the next client.
The realistic breakdown of what exists in the market:
You need to be able to tell the difference before you sign anything.
Real transparency is the filter. If an agency cannot or will not answer these questions clearly, move on.
Transparency about link sources. Where do the links come from? Not "our publisher network" — that is the red flag phrase. Real agencies do outreach to real sites and can name actual publications they have placed in.
Manual outreach process. Links should come from someone actually writing a pitch, building a relationship, and earning editorial placement. Not from a spreadsheet of sites that accept paid insertion.
No guarantees on specific link counts. Any agency guaranteeing "10 links per month guaranteed" is either operating a link farm or lying to you. Real editorial placements depend on editors saying yes. That cannot be guaranteed.
Willingness to show real placements. Before you sign, ask for 10 recent client placements. Look at the sites. Not the metrics — the actual sites. Are they real publications with real audiences? Do they publish quality content? Would a reader actually visit them?
Memorize these. They will save you thousands.
These are not optional. Get answers in writing or on a recorded call.
Where do your links come from? Ask for specifics. "Editorial outreach to relevant publications" is acceptable. "Our network" is not.
Can I see 10 recent placements for current or past clients? The placements themselves, not a screenshot of metrics.
What is your rejection rate? This one surprises people. A high rejection rate (30–50%+) signals that the agency has quality standards — they are pitching real editors who sometimes say no. Zero rejection means they are placing on sites that accept everything.
What happens if a link gets removed? Real agencies have a replacement policy. Link farms do not, because those sites disappear regularly.
Who will be working on my account? Is there a dedicated person? What is their background? How many accounts are they managing?
What metrics do you use to qualify sites before outreach? Not just DR — traffic, editorial standards, relevance.
Never commit to a six-month or annual contract before running a three-month trial.
The trial period tells you:
A legitimate agency will not balk at this. They want to prove themselves. Agencies that push back hard on a trial period or insist on longer commitments upfront are signaling something.
Three months is enough to see 5–10 placements and evaluate the quality.
Quality link building is not cheap. Here is the real range:
| Service Level | Monthly Investment |
|---|---|
| Entry-level (new sites, lower competition) | $1,000–$2,000/month |
| Mid-market (growth stage, competitive niches) | $2,000–$5,000/month |
| Enterprise / aggressive campaigns | $5,000–$15,000+/month |
If someone quotes you $300/month for 10 links, they are selling you links from sites that should not exist.
The math is simple. Real outreach — finding targets, writing pitches, following up, negotiating, reporting — takes hours per placement. A human doing that work costs real money. If the economics do not add up, the links are not real.
Per-link pricing at the lower end ($50–$150 per link) almost always signals low-quality inventory. You are buying placement on sites that accept payment, not editorial endorsement.
A serious agency will send you a proposal that includes:
A proposal that is mostly graphics and testimonials with no specifics on process is a warning sign.
Do not take their word for it. Check.
Ahrefs their clients' sites. If an agency has been doing good work for clients, those clients should have growing, diverse backlink profiles with real referring domains.
Look at the actual links, not just the metrics. Go to the linking pages. Read them. Would a real person read that article? Does the link placement make sense editorially?
Check the agency's own site. An SEO agency with a bad backlink profile is a red flag. Do they practice what they preach? Pull their referring domains in Ahrefs or Semrush.
Google the clients they reference. Are they real businesses? Can you contact them independently and ask about their experience?
We are TDL — a link building agency that does things a specific way.
We do manual outreach to real publications. We tell clients exactly which sites we are targeting before we pitch. We share placements with full URLs and context, not just domain metrics. We do not offer guaranteed link counts because real editorial decisions are made by editors, not by us.
We also turn down clients who want volume without quality standards. That is not the business we are in.
If you want to understand our process before talking numbers, start with our link building services page or look at how we approach white-hat link building.
For the broader question of whether to outsource or keep link building in-house, see our guide to outsourcing link building.
You are reading this because you want links that actually move rankings, not links that disappear or trigger penalties.
That is what we build.
Get in touch and let us show you what a real link building proposal looks like.