Backlink Analysis Tool: What Agencies Should Check First

A backlink analysis tool pulls the links pointing at a domain (which sites link to it, with what anchor text, whether those links pass authority, and how the count changes over time) and lets you compare that profile against competitors. For an agency, the useful output isn't the total backlink count. It's the short list of referring domains that link to two or more of a client's competitors but not to the client. DFY Hub's SEO MCP covers this with 16 backlink tools, from a one-call profile summary to a domain intersection report, and you run them by asking Claude, ChatGPT or Cursor in plain English.

Last updated: October 2026

Two clients with the same backlink count can be in completely different shape

Here's the difference hardly anyone explains to clients. Say two plumbing companies each show around 4,000 backlinks. The first got 3,800 of them from one directory that put its name in a sitewide footer, plus a few hundred scattered links. The second has 4,000 links from 300 separate sites: suppliers, a local news story, a chamber of commerce page, a couple of trade associations.

Same headline number. Completely different link profiles.

That's why the first column I look at in any backlink report is referring domains, not backlinks. One site linking to you 3,000 times is still one vote. The DFY Hub backlink tool page makes the same point in its own tips: one quality domain linking matters more than hundreds of links from spammy sites.

Agencies that report "backlinks up 40% this quarter" are often reporting a footer.

What a backlink analysis tool should actually return

If a tool can't answer these five questions, it's a counter, not an analysis tool.

1. Who links to the site? A referring domains list, with each domain's rank and first and last seen dates.
2. What do the links say? Anchor text distribution, so you can spot a profile that's mostly exact-match keywords (a risk) versus mostly the brand name (normal).
3. Is the profile growing or shrinking? New and lost links over time. A slow bleed of lost referring domains is easy to miss without a time series.
4. Which sources look manipulative? Spam scores and IP subnet grouping, which can expose a cluster of sites on the same network.
5. What do competitors have that the client doesn't? An intersection report across several domains.

The SEO MCP maps onto all five. Its backlink category includes a Backlink Profile Summary, Referring Domains List, Anchor Text Distribution, Backlink History, New & Lost Backlinks Timeseries, Bulk Domain Spam Scores, Referring Networks (IP Subnets) and a Domain Backlink Intersection, among the 16. The full list, with example prompts, is on the Backlink Analysis Tools page.

The intersection report is where the billable work lives

Profile summaries tell you where a client stands. The intersection tells you what to do next.

Run the client's domain against two or three competitors and ask for domains that link to at least two of the competitors but not to the client. Those sites have already shown they'll link to a business like your client's. They're the warmest outreach list you'll ever get.

For local service clients, that list tends to be refreshingly unglamorous: a supplier's "where to buy" page, a home show sponsor list, a local news roundup, a trade association directory, a youth sports team the competitor sponsors. None of it is exotic. All of it is replicable, which is the point.

There's also a page-level version (Page Backlink Intersection) for when one competitor guide or service page is soaking up links and you want to know exactly who links to it. That's the better tool when you're building links to a single piece of content rather than the whole domain.

A practical prompt looks like this: "Show me domains that link to competitor-a.com and competitor-b.com but not to myclient.com, sorted by domain rank, and drop anything with a high spam score." The assistant picks the tools, runs them and summarizes. You still read the rows.

Backlinks are only one input, though. If you're competing for the same terms, the competitor keyword analysis side of the picture tells you which pages those links need to support.

Spam scores are a flag, not a verdict

This is where I'd ask agencies to slow down. A spam score is a model's guess about a domain. It's useful for sorting a list of 400 referring domains into "fine," "look at this" and "probably junk." It isn't a reason to disavow anything on its own.

The tool page's own guidance is to treat scores above 60 as a flag for further investigation, not automatic disavowal. I agree, and I'd go further: frankly, most agencies over-disavow. Google already ignores most low-quality links, and a disavow file built from a score threshold can throw out links that were doing real work, like an old local blog with a scruffy design and a perfectly genuine link.

So keep a person on it. Let the tools sort and score. Have someone on your team open the questionable domains before anything goes into a disavow file or an outreach sequence. An AI assistant can sort 400 domains in seconds, but it doesn't know that the ugly site at the top of the "spam" list is the client's brother-in-law's hardware store.

Where DFY Hub fits, and where it doesn't

An honest concession first: Ahrefs has the best backlink index in the business. If link building is your agency's core product and you live in backlink data every day, a dedicated Ahrefs seat may be worth it, and no amount of positioning on our side changes that. Every serious SEO vendor also ships an API or MCP server now, so access alone isn't a reason to pick anyone.

Where the SEO MCP earns its place is breadth on one connection. The same server that runs the backlink tools also covers keyword research, SERP analysis, geo-grid local rank scanning, Google business data and App Store Data, 93 tools across 12 categories. For an agency serving local service businesses, that means the link check, the keyword pull and the map-pack scan happen in one conversation instead of three tabs.

Billing is the other difference. SEO MCP credits sit in one balance on your account, priced per account with no per-user fees, and each call deducts credits. You can start free without a credit card. Setup is a hosted server URL plus a sign-in with your DFY Hub account over OAuth; there's nothing to install.

DFY Hub's platform plans are a separate thing and are billed per client: Local Dominator at $99/mo, Growth Engine at $199/mo and Full Stack at $399/mo, each covering one client. If you're auditing a new account's whole local presence, not just its links, the local seo audit tool and ai business audit tool posts cover the rest of that ground.

A monthly backlink check for each client

Here's the routine I'd run, in order:

• Pull the profile summary and compare referring domains with last month's number.
• Check new and lost referring domains for the month. Lost links from good sites are sometimes recoverable with one email.
• Scan the anchor text distribution for a sudden spike in exact-match anchors, which can mean someone's pointing spam at the site.
• Re-run the intersection against the same two or three competitors and add anything new to the outreach list.
• Hand the questionable domains to a person for review before anything is disavowed or pitched.

One caveat that applies to every tool, including ours: no link index sees every link on the web, and different indexes count differently. Don't promise a client that two tools will show matching numbers. Track the trend inside one tool and compare like with like.

Frequently asked questions

What does a backlink analysis tool actually show?

It shows which domains link to a site, the anchor text they use, whether the links are followed, and how the profile changes over time. Better tools add spam scores and competitor comparisons. DFY Hub's SEO MCP has 16 backlink tools covering profile summaries, referring domains, anchor text, history, spam scores and domain or page intersections.

How many competitors should I compare a client against?

Two or three is the practical range. One competitor gives you a list skewed by that business's history. Three lets you find domains that link to two or more of them, which are the strongest outreach targets because they've already linked to similar businesses. Pick competitors who rank for the client's terms, not just the names the client mentions.

Are DFY Hub SEO MCP credits billed per client?

No. SEO MCP credits sit in one balance on your account, priced per account with no per-user fees, and they come from a plan rather than separate top-ups. You can start free without a credit card. DFY Hub's platform plans are different and are billed per client: $99, $199 or $399 a month for each client.

Should I disavow every link with a high spam score?

No. A spam score is a model's estimate, useful for sorting a long list but not a verdict. DFY Hub's own tool guidance treats scores above 60 as a reason to investigate, not to disavow automatically. Have a person review questionable domains first, since some genuine local links come from old, low-polish sites that score badly.