Growth audit vs SEO, marketing or CRO audit

If you can name the broken stage and show the evidence, buy a specialist audit. If you can’t, start with a growth audit, because the others all assume you already know where the problem is. An SEO audit starts from the site, a marketing audit from the message, a CRO audit from the page, and a growth audit from the revenue target, working back to whichever of those is holding it down.

Throughout this chapter, say you run a B2B SaaS at 2M ARR. Signups have been rising for a year and qualified leads have not.

The four audits side by side

	SEO audit	Marketing audit	CRO audit	Growth audit
Question	How can this site rank and earn more clicks?	Are positioning, message and channels coherent?	Which changes make this page convert better?	Which constraint limits revenue, and what do we do first?
Unit of analysis	URL, template, query	Brand, offer, campaign	Page, form, step	The chain from first visit to renewal
Main data	Crawl, Search Console, backlinks, rank tracking	Competitors, customer research, campaign reports	Analytics, heatmaps, session replays, A/B tests	All of those, plus CRM, billing and product data
Deliverable	Ranked technical and content fixes	Positioning and channel recommendations	Hypotheses and a test plan	Verdict, ranked actions, six-month roadmap
Blind spot	Who the traffic turns into	What happens after the signup	Whether those conversions are worth having	Depth on any single discipline

That last cell is a real limit. A growth audit contains a technical sheet, a review of templates for CRO and a competitor analysis, each at the depth needed to decide. On an audit I ran for a B2B SaaS, the work went well beyond an SEO checklist, and it also stated where I was not the best placed to recommend anything. An audit that claims top-level expertise in every field deserves suspicion.

One symptom, four diagnoses

Take our SaaS and its flat qualified leads. Here is what each audit would likely return.

Audit	Likely finding	Likely recommendation	What it misses
SEO	Blog traffic is healthy, with some 404s and thin pages	Fix the technical items, publish more on the winning topics	The winning topics are the ones attracting the wrong buyers
Marketing	The message is generic compared with competitors	Sharpen the positioning	The current message may be fine for the people who actually buy
CRO	The signup page has friction	Shorten the form, test the CTA	More signups from the same audience makes the problem worse
Growth	The few pages carrying the traffic attract companies too small to buy, because the topics are too operational	Compare readers with buyers, redirect content, link articles by topic to the feature and pricing pages where conversions happen, judge content on qualified leads	Fine-grained technical detail, handed to a specialist if it becomes the priority

The first three findings can all be accurate. Only the last one explains why the number the company cares about hasn’t moved. It gets there by joining data no specialist audit touches: traffic by page, signups by page, and CRM qualification.

SELECT
  s.first_landing_page,
  COUNT(*) AS signups,
  COUNT(*) FILTER (WHERE d.qualified) AS qualified_leads,
  ROUND(100.0 * COUNT(*) FILTER (WHERE d.qualified) / COUNT(*), 1) AS qualified_pct
FROM signups s
LEFT JOIN crm_deals d ON d.account_id = s.account_id
WHERE s.created_at >= CURRENT_DATE - INTERVAL '6 months'
GROUP BY s.first_landing_page
HAVING COUNT(*) >= 30
ORDER BY signups DESC;

This query assumes one deal per account and a landing page stored at signup. If your signups don’t carry that field, you have just found your first action.

What specialist audits do better

A good SEO audit goes further on crawl budget, log files and rendering than a growth audit ever will. On a programmatic site, that depth is the job, and the chapter on automating SEO audits shows what it involves.

A CRO program has a constraint you can compute before spending anything: traffic. A common rule of thumb gives the visitors needed per variant at 5% significance and 80% power:

n = 16 * p * (1 - p) / d^2

Here p is the current conversion rate and d the absolute difference you want to detect. With a page converting at 3% and a target of 3.6%, that is about 12,900 visitors per variant, so roughly 26,000 in total. At 2,000 visitors a month on that page, the test runs for 13 months. Many B2B sites can only A/B test their highest-traffic pages, and the rest need judgment, which is why a template-by-template review is part of a growth audit.

A marketing audit earns its fee when the question really is about the story: entering a new segment, a change of target, or a gap between who you say you serve and who the market thinks you serve.

Decisions that cross channels

The strongest argument for the broader view is that the best moves often span several disciplines, and a channel-bound audit has no place to put them.

The Grosbill Black Friday project used one idea on two channels: dedicated pages built months ahead for SEO, then ad versions of those pages for paid traffic. Revenue from ads was multiplied by 7 and revenue from SEO by 4 over the period, with 47% of SEO revenue coming from those pages. An SEO review and a paid media review, run separately, would each have seen half of it.

The opposite trap appears when a project is scored on the wrong metric. On Deux.io, we deliberately went after searches with little volume and strong intent. Judged on traffic the project would look modest. Judged on leads it brought 35 to 50 a month, with 485 of the 658 tracked keywords in the top 3.

Which one you actually need

Your situation	Start with
Traffic dropped after a migration or redesign	Technical SEO audit
Generated pages stuck outside the index	SEO audit
One high-traffic page converts badly, and you have the volume to test	CRO audit
Entering a new market, or nobody can state what makes you different	Marketing and positioning audit
Growth has slowed and the team has several competing explanations	Growth audit
Churn is rising and you don’t know why	Growth audit, centered on retention
Growth audit done, and the top action is highly technical	The specialist audit that action calls for

The order matters when you do both. A growth audit first tells you whether a specialist audit is needed and what it should answer, and that brief makes the specialist far more useful.

Before signing with anyone, ask to see how they would state a finding on your business, which metric they would judge success on, what they would leave out of scope, and which of their recommendations they would not be the right person to carry out.

Your next step: write down the one number you need to move, then find your line in the table above. If you land on a growth audit, go to the framing chapter and turn that number into the questions the audit has to settle.