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Foundations: how links actually work

Setting a realistic first goal

Five to fifteen genuine referring domains in a quarter is a good first campaign for most sites.

Lesson 5 of 50Module 1 · Foundations: how links actually work6 min read

After this lesson you should be able to

  • Set a first-quarter target in referring domains rather than links
  • Account for link decay when forecasting a link building program
  • Explain why high-quality referring domains arrive so slowly
  • Write a goal specific enough to be judged a failure

The number most people start with

Ask someone new to this what their first-quarter link target is and you will hear a number like a hundred, or five hundred, or "as many as possible". That number almost always comes from a vendor's package description rather than from any analysis of what is achievable or useful.

Two things are wrong with it before we look at any data. It counts links instead of referring domains, so a single sitewide placement could satisfy it while changing nothing. And it treats links as a stock that accumulates, when they behave far more like a population with births and deaths.

The rest of this lesson replaces that number with one you can defend to a client, a board, or yourself in six months when you are reviewing whether the work was worth it.

Links die, and they die faster than you think

From the reference profile — 1,301,839 links from 22,260 referring domains, accumulated over roughly twenty years:

  • The median referring domain stops linking after 1,080 days. Just under three years. Half of all domains that ever linked stopped sooner than that.
  • 49.6% of all links ever recorded are gone. Not devalued — gone from the page.
  • Survival tracks quality closely. Domains at Trust Flow 0 had a median lifespan of 859 days; domains at Trust Flow 61 or above lasted a median of 3,353 days. Roughly four times as long.
  • 717 referring domains at Trust Flow 21 or above have stopped linking entirely. These were the good ones.

The most counter-intuitive finding is about how they disappear. 97.4% of lost links were lost while the source page was still perfectly reachable. Of 645,202 lost links, only four were lost to a 404. The pages did not die. The links were removed from them — redesigns, CMS migrations, template changes, editorial cleanups, plugin updates, a new content team pruning old posts.

Three practical consequences. First, any link building plan that ignores decay is forecasting a stock that is quietly draining. Second, checking for dead source pages will not find your losses — you have to check whether the link is still on the live page. Third, higher-quality placements are worth more than their metric suggests, because they last several times longer, and lifetime value is what you are actually buying.

Good links arrive slowly, even when you are not trying

Now the arrival side. On that same profile, built over about two decades with no links ever purchased:

  • Only 446 referring domains — 2.0% of 22,260 — are Trust Flow 41 or higher. Over twenty years, that is roughly 22 high-trust referring domains per year.
  • 69.3% of all 22,260 referring domains are Trust Flow 0. On a profile where nothing was bought. The long tail of scrapers, aggregators, dead blogs and low-trust sites is not evidence of manipulation. It is what the web does to anything that publishes for long enough.

Sit with the first number. This is a site run by someone who has worked in this industry for twenty-five years, speaks at conferences, gets quoted in the press, and publishes constantly. The rate of genuinely high-trust citation is about two a month.

So when a vendor offers you thirty links a month at Trust Flow 30 or above, what they are offering is more high-quality citations per month than a well-known industry site earns in a year and a half. That offer is not evidence of skill. It is evidence that the links are being placed somewhere that sells placements, and you can price that risk accordingly.

The second number matters for a different reason: it should stop you panicking about your own low-quality tail. Most people, on first seeing that two thirds of their referring domains score zero, conclude they have a toxic profile and start building a disavow file. On this evidence, that reaction is wrong. Trust Flow 0 is the normal condition of the web.

What a good first quarter looks like

Here is the plain version. For most sites, a first campaign that lands 5 to 15 genuine referring domains in a quarter is a good outcome.

By genuine I mean: a real site, with real readers, that decided to link to you because a person there thought your page was worth citing. Not a directory submission, not a paid placement dressed as editorial, not a link you left in a comment.

Why that range holds up:

  • At the top end it is roughly 60 quality referring domains a year — nearly triple the annual rate of high-trust acquisition on a profile with twenty years of momentum behind it. Beating that pace consistently, from a standing start, is not the normal case.
  • At the bottom end, five relevant referring domains is a genuine change for a site that had thirty. It is nothing for a site that had three thousand.
  • It is achievable with one focused tactic and no budget for placements, which means you can find out whether the approach works before you commit real money.

Adjust for context rather than treating the range as universal:

  • New site, no history, no press contacts. Expect the low end, and expect the first six weeks to produce nothing while you build lists and send first emails.
  • Established brand with existing coverage. Aim higher, because link reclamation and unlinked mention reclamation will give you links that are already halfway earned.
  • Local service business. The ceiling is lower — there are only so many relevant local organizations — but so is the requirement, and ten strong local citations can be decisive.
  • Genuine digital PR with a real story. This is the one tactic that breaks the range in either direction. A campaign that runs produces dozens of domains in a week; a campaign that does not produces zero for the same effort.

Writing a goal that can be judged

A goal you cannot fail is not a goal. Write yours so that in ninety days it is unambiguous whether it happened.

Include five elements:

  1. The unit. Referring domains, not links. Say it explicitly so nobody reports link counts at you later.
  2. A quality floor. Something checkable — topically relevant, indexed in Google, showing signs of real traffic. A metric threshold can be part of it, but it should never be the whole of it.
  3. A number and a window. "Eight new qualifying referring domains within ninety days."
  4. The tactic. One, not five. If you run five at once you will not know which one worked, and you will not run enough of any to learn anything.
  5. The kill criterion. What result would tell you to stop? "If a hundred and fifty qualified outreach emails produce fewer than three links, the offer is wrong and I will change it rather than send more."

Then track two things nobody tracks and both of which will change how you work: the survival of the links you build — re-check them at six and twelve months and record how many are still on the page — and your conversion rate from qualified prospect to live link. The first tells you what you are really buying with your effort. The second is the only number that lets you forecast the next quarter instead of guessing at it.

One caution about the leading indicator. Ranking movement is a bad ninety-day metric for link building, because the delay between a link going live and any effect being visible routinely exceeds the campaign itself. Judge the quarter on referring domains earned and on the quality of what earned them. Judge rankings over a year.

Questions

How many links should I build in my first month?

Ask the question in referring domains and the answer for most sites is one to three in month one — and possibly zero, because the first weeks go into prospecting, list building and first contact. Front-loading a target into month one usually produces the wrong kind of link, because the fastest links to acquire are the ones anybody can buy.

Why do links disappear if the page is still live?

Because sites change. Redesigns drop old markup, CMS migrations lose formatting, editors prune outdated posts, plugins get replaced, and content teams rewrite articles without preserving citations. On the profile behind this course, 97.4% of lost links vanished from pages that still load fine — only four of 645,202 lost links were lost to a 404.

Is it bad that most of my referring domains have Trust Flow 0?

Almost certainly not. On a twenty-year profile where no link was ever bought, 69.3% of referring domains score Trust Flow 0. Scrapers, aggregators, abandoned blogs and small sites make up the long tail of any profile that has existed for a while. Judge your profile by what its best sources look like, not by the size of its tail.

Should I set a target for link quality as well as quantity?

Yes, and make it checkable rather than numeric alone. Topically relevant to your subject, indexed in Google, showing evidence of real visitors, and editorially placed within content rather than in a template or a list. A metric threshold can supplement those tests, but on its own it selects for sites that have optimized for the metric.

How long before link building shows up in rankings?

Longer than a quarter, usually. The linking page has to be crawled and indexed, the link has to be processed, and any effect competes against everything else changing in the results. Expect discovery and indexation benefits within weeks and ranking effects over months. Judging a ninety-day campaign on rankings will mislead you in both directions.