How to Track Backlinks & Build a Monitoring System

If you have ever paid for a backlink, you have an asset that can quietly disappear without telling you. Learning how to track backlinks is the difference between a link profile that compounds over years and one that leaks value every quarter. In this guide you will build a simple, always-on monitoring system that catches link decay and lost backlinks early, using tools you probably already pay for, plus a cadence you can actually stick to.

Key takeaways

• Links vanish constantly: roughly 7% disappear in their first year, and over a long horizon most links die, so a one-time indexing check is never enough.
• Track five things per link: live status, indexation, anchor text, target URL, and dofollow/nofollow. Anything less and you miss the cheap, silent failures.
• Build a three-layer stack: Google Search Console for free signal, an Ahrefs or Semrush alert for change detection, and a tracking sheet as your single source of truth.
• Set a realistic cadence: a fast weekly skim, a deeper monthly audit, and a thorough quarterly reconciliation.
• When a paid link decays, diagnose first (deindexed vs removed vs switched to nofollow), then recover or replace before rankings slip.

Why backlink monitoring matters more than you think

Most SaaS teams treat a backlink as a one-time purchase. You buy it, you confirm it went live, you move on. The problem is that a link is a living thing on someone else's website, and that website changes constantly.

The numbers are sobering. Ahrefs ran a study on link rot and found that at least 66.5% of links to content over a nine-year span were dead, with around 7% of links disappearing within the first year alone. Backlink tracker Linkody reached a similar conclusion in its own link rot analysis, reporting that a meaningful share of links are lost annually through page deletions, site redesigns, and editorial cleanups.

Here is the part that stings for a buyer. Every link you lose is money you already spent that has stopped working. If you are running a real budget (and our link-building cost benchmarks show those budgets add up fast), you cannot afford to let 7% to 15% of your link equity evaporate each year without noticing. Monitoring is not busywork. It is asset protection.

What to track per link

Confirming a link is "still there" is the bare minimum, and it misses the most common failure modes. For each link in your profile, track these five attributes.

Attribute	What you are checking	Why it matters
Live status	Does the page load and does your link still appear in the HTML?	A removed link passes zero value and you may be owed a replacement.
Indexation	Is the linking page in Google's index?	An unindexed link is invisible to Google, so it does not count.
Anchor text	Does the anchor still match what you agreed?	Editors swap anchors, which can tank or skew your anchor text ratios.
Target URL	Does it still point to your intended page?	A "fix" or migration on their side can redirect or break your target.
Dofollow / nofollow	Is the rel attribute still passing equity?	A site-wide policy change can flip your link to nofollow silently.

The reason all five matter is that links rarely die cleanly. The dramatic failure (page deleted) is actually the easy one to spot. The expensive, silent failures are the anchor that got rewritten to something generic, or the dofollow link that became nofollow after the publisher tightened its outbound policy. Those keep the link "live" in a casual glance while quietly cutting its value. If indexation is the part you struggle with, our guide on why backlinks aren't getting indexed walks through the usual causes.

Link decay and lost backlinks: how fast it really happens

"Link decay" is the gradual loss of links across your profile over time. It is not an event, it is a slow leak, which is exactly why it is so easy to ignore until a ranking drop forces you to look.

The drivers are predictable:

• Content pruning. The publisher deletes or consolidates old posts, taking your link with them.
• Site migrations. A redesign or domain move drops links that were not mapped properly. (Worth reading our site migration checklist if you are on the other side of one.)
• Editorial cleanups. Someone audits outbound links and strips ones they no longer want.
• Policy changes. A site decides all outbound links become nofollow, or starts charging to keep them live.
• Expired domains. The linking site simply goes offline.

Google's own documentation notes that links can lose value or stop counting when the surrounding context changes, which is why a "live" link is not automatically a "working" link. Treat decay as a baseline cost of doing business, budget for it, and design your monitoring to catch it before it compounds.

Building your monitoring stack

You do not need an expensive new platform. A practical stack has three layers, each doing a job the others cannot.

Layer 1: Google Search Console (free signal)

Google Search Console shows you the links Google actually knows about under the Links report. It will not alert you to a specific lost link in real time, but it is your ground truth for what Google has discovered and counted. Export the "Top linking sites" and "Top linked pages" reports monthly and compare against last month. A linking domain that drops off the list is your first clue something decayed.

The bonus: GSC is the same place you confirm whether a linking page is indexed (paste the URL into the URL Inspection tool). For more on why that step is non-negotiable, see backlink indexing.

Layer 2: An alert tool (change detection)

This is the layer that scales. Both Ahrefs and Semrush offer backlink monitoring with alerts for new and lost links. Set up your domain as a project, turn on lost-link notifications, and you get a push when the tool detects a referring domain dropping a link to you. Moz and Majestic offer comparable link monitoring if you already live in those ecosystems.

These tools are not perfect. They recrawl on their own schedule, so there is lag, and they occasionally report a link as lost when it briefly 404'd during a deploy. Treat their alerts as leads to investigate, not gospel.

Layer 3: A tracking sheet (your source of truth)

This is the layer most teams skip, and it is the most important. The tools above tell you about links Google or Ahrefs found. Your sheet tracks the links you bought and care about, including the ones you are still waiting to go live. To track backlinks in Google Sheets, set up one row per link with columns matching the five attributes above, plus the order date, cost, source/marketplace, and a "last checked" date.

A workable column layout:

Column	Example
Linking URL	example.com/saas-tools-roundup
Target URL	yoursaas.com/pricing
Anchor text	"best invoicing software"
Type	Guest post / niche edit
Dofollow?	Yes
Indexed?	Yes (checked 2026-04-10)
Status	Live
Cost	$240
Last checked	2026-04-10

You can pull live HTTP status and even detect the anchor with a custom Google Sheets formula using IMPORTXML, or with an add-on, but honestly a manual spot-check column is fine for most SaaS profiles under a few hundred links. The sheet is what turns scattered tool alerts into accountable decisions, and it is what you reconcile your spend against when you sit down to do link-building ROI reporting.

A realistic monitoring cadence

The best monitoring system is the one you do not abandon after three weeks. Match effort to frequency.

Weekly (10 minutes). Skim your Ahrefs or Semrush "lost links" alerts. You are only triaging: anything pointing at a money page or a high-value link gets flagged for a closer look. Ignore one-off blips on low-value links.

Monthly (45 to 60 minutes). Pull the GSC Links report and diff it against last month. Spot-check the 10 to 20 most valuable links manually: load the page, find your link, confirm anchor, target, and rel attribute. Update the "last checked" date in your sheet. This is also when you re-run indexation checks on anything newer than 90 days, since some links take weeks to get crawled, and our piece on getting backlinks indexed faster covers how to nudge the slow ones.

Quarterly (half a day). Full reconciliation. Go through every paid link in the sheet, verify all five attributes, and tally what you have lost. Calculate your decay rate (lost links divided by total) so you have a real number to plan against. Then act on every decayed link.

This cadence catches the urgent stuff fast and the slow leaks reliably, without turning monitoring into a full-time job.

Deindexed vs removed vs switched to nofollow

When a link stops working, the fix depends entirely on how it failed. Diagnose before you react.

• Deindexed. The page still exists and still contains your link, but Google has dropped it from the index. Confirm with URL Inspection in GSC. The link is not lost, it is dormant. The page may be thin, blocked, or caught in a quality sweep, so the path here is re-indexing, not replacement.
• Removed. The page is gone (404 or 410) or the link was edited out. This is a true lost backlink. If it was paid, you likely have a claim for a replacement or refund.
• Switched to nofollow. The link is live and indexed, but the rel attribute now says nofollow or sponsored. It still sends a trickle of referral value but no longer passes the equity you paid for. View the page source and search for your URL to confirm.

Lumping these together leads to wasted effort, like chasing a refund on a link that just needs re-indexing, or trying to re-index a link that was deleted. The diagnosis is the work.

What to do when a paid link decays

Once you know the failure type, you have a clear playbook.

1. For deindexed links, treat it as an indexation problem first. Request indexing, check the page is not blocked, and give it time. If it stays out of the index, escalate it to the source.
2. For removed or nofollowed links, go back to your source. If you bought through a reputable channel, this is where a guarantee earns its keep. Reputable sellers, including marketplaces, will replace a link that drops within the covered window, which is the whole point of a 30-day indexation guarantee.
3. For genuinely lost links you cannot recover, replace the lost equity. Order an equivalent or better link pointed at the same target so your profile stays net positive rather than slowly bleeding.
4. Update the sheet either way. A decayed link you have replaced is a closed loop. A decayed link you ignored is a future ranking problem.

The mistake to avoid is reacting only when rankings drop. By then you have lost weeks. The sheet plus the cadence is what lets you act on the cause instead of the symptom.

How marketplace order tracking cuts the manual work

Here is where the buying channel you choose changes the math. When you acquire links through a link-building marketplace, a lot of this monitoring is handled for you at the source.

Instead of hand-tracking order date, target URL, anchor, and live status across a sprawling spreadsheet, the marketplace dashboard already holds that data per order and tracks each link through to "indexed." That collapses two of your three layers into one, because the system that placed the link is the same system watching it. A guarantee on top of that means a link that decays inside the window gets flagged and replaced without you filing a manual claim.

You will still want your own sheet for the full historical picture and for ROI reporting. But marketplace tracking turns the heaviest part of monitoring (knowing what you bought, where it points, and whether it is still live and indexed) into something you check rather than something you build from scratch. If you are weighing how to source links in the first place, our take on buying backlinks for SaaS safely and the build vs buy vs hire decision is a good place to start.

Bringing it together

Tracking backlinks is not a one-time task you check off after a link goes live. It is a small, repeatable habit that protects money you have already spent and keeps your link profile compounding instead of leaking. Build the three-layer stack, track all five attributes per link, hold to the weekly/monthly/quarterly cadence, and always diagnose a failure before you react to it.

If you would rather not stitch the monitoring together by hand, sourcing links through a channel that tracks orders to indexed (and replaces what decays) does most of the heavy lifting for you. You can browse vetted inventory and start tracking from day one whenever you are ready.