SEO metric cross-checker for content and SEO agencies

An agency analyst is mid-way through a competitive brief when they notice the domain authority score for a client's competitor looks suspiciously high — then they check another source and it's 30 points lower. They have no systematic way to know which number to trust, so they either footnote every metric with a disclaimer or spend an hour manually triangulating. This happens every single engagement.

The gap persists because the tools producing these metrics have a structural incentive to present their own numbers as authoritative — admitting variance would undermine the product's core value proposition. Nobody inside those vendors will ship a feature that says 'our DA score may be wrong by this margin.' The buyer (the agency) and the user (the analyst) are also often different people, so the analyst's daily frustration rarely escalates into a cancellation threat that would force the vendor to act.

What analysts actually need is a dead-simple way to pull the same metric — domain authority, estimated traffic, backlink count — from multiple underlying data sources simultaneously and surface the range and variance, not a single number. The complaint 'accuracy of the data is sometimes underwhelming and doesn't match other prominent sites' is the exact moment this product earns its keep. Instead of picking one source and hoping, the analyst sees: Source A says 42, Source B says 67, median is 54, last updated 11 days ago vs 3 months ago.

This is a business and not a feature because the variance problem is structural and permanent — different crawlers have different indices, update on different schedules, and use proprietary scoring models that will never converge. That means the reconciliation job never goes away. An agency doing 10+ competitive audits a month has this problem on every single one, and the cost of getting it wrong is a client presenting a strategy built on bad data.

What to build

Build a browser-based audit layer that pulls domain authority, estimated organic traffic, and backlink counts for any entered domain from multiple data APIs simultaneously, displays the raw variance across sources side-by-side with last-updated timestamps, and exports a single reconciled range as a citable figure for client reports.

Where to start

Start with agencies already exporting data manually into spreadsheets to reconcile numbers — they've already proven they'll do this work, so you're replacing a tedious manual process they've validated rather than convincing someone a problem exists.

The hard part

You need live API access to multiple proprietary data sources to make the comparison meaningful, and those API tiers get expensive fast — meaning your pricing has to be high enough to cover data costs before you've proven willingness to pay, which makes early customer acquisition harder.

How it makes money

Monthly subscription per seat, tiered by number of domains checked per month; agencies with high audit volume naturally land on higher tiers without a sales conversation.