Red Flags When Hiring
an SEO Agency
Eight warning signs that will save you 6 to 12 months of wasted spend. With the specific phrases plus behaviours that reveal each one. Spot these on the first call plus walk away.
Eight red flags that mean walk away. Guaranteed rankings. Refusal to explain methodology. No transparent reporting. Lock-in contracts without exit clauses. Vanity-metric obsession. Pressure-sales tactics. No case studies or testimonials. Generic offshore-style pricing. Any of these on the first call means the agency will waste your money. Three or more means walk away immediately. Reputable agencies do not exhibit any of them.
Three numbers that explain
why bad agencies survive
Bad SEO agencies exist because founders sign before vetting properly. These three numbers describe both the scale of the problem plus how cheap it is to avoid.
Common red flags
The eight behaviours below show up on roughly 60% of agency sales calls. Spotting them takes minutes. Ignoring them costs months.
Cost of bad pick
Of wasted retainer plus opportunity cost when a bad agency is signed. Plus a recovery period of another 4 to 6 months at the next agency. The wrong pick is one of the most expensive startup mistakes.
To vet properly
One vetting call run against the questions in the previous guide plus the red flags in this one is enough to filter 80% of bad agencies. The cheapest insurance available in startup operations.
Bad agencies tell on themselves in the first 30 minutes
Most bad SEO agencies are not subtle. They use the same phrases, sell with the same pressure tactics plus dodge the same questions. Reputable agencies do not exhibit any of the behaviours below. Bad agencies exhibit four or five of them on the first call. The pattern is so consistent that a 30-minute screening call against this list filters out most of the bad picks before they cost you anything.
The reason bad agencies survive is that founders rarely vet properly. The sales call feels positive. The promises sound exciting. The retainer fits the budget. The red flags get reframed as "ambitious" or "different". Six months later the founder realises the warning signs were on the first call. By then six months of retainer plus six months of opportunity cost are gone.
The dashboard below lists eight red flags graded by severity. "Walk Away" means terminate the call. "Push Back" means challenge the answer plus see whether the agency adjusts honestly. "Investigate" means do more digging before deciding. The dashboard also tells you what each red flag looks like in real conversation.
For the full commercial picture of how we deliver this for UK startups, the SEO for Startups service page sets out exactly what is included, what it costs plus what results to expect inside the first twelve months.
Three categories the eight red flags split into
Each red flag belongs to one of three categories. Knowing which category helps decide what the right response is. Some flags are deal-killers. Others are negotiable if the agency adjusts.
Deception Flags
Guaranteed rankings, dodged methodology, hidden case studies. These flags signal active dishonesty. No amount of negotiation fixes them. Walk away the moment any of these surface.
Process Flags
Vanity metrics, weak reporting, lock-in contracts. These flags signal operational problems rather than dishonesty. Often negotiable. Push back hard plus see if the agency adjusts. If not, walk.
Cultural Flags
Pressure sales, generic communication, copy-paste pitches. These flags signal the agency runs on volume rather than relationships. Quality suffers as a result. Investigate before deciding.
Deception flags are the deal-killers. Process flags can sometimes be negotiated. Cultural flags usually predict the experience you will have for the next twelve months. Read the dashboard with this hierarchy in mind.
The eight-flag warning dashboard
What each red flag looks like in real conversation, what it actually means plus how serious it is. Use this as a screening checklist during agency calls.
Guaranteed Rankings
Vague Methodology
No Case Studies
Vanity-Metric Reports
No Exit Clause
Pressure Sales
Generic Pitch
Offshore-Style Pricing
Take notes during the vetting call. Mark each red flag as it appears. By the end of a 30-minute call you will have a clear count. Zero flags means the agency is worth deeper diligence. Two flags means proceed with caution. Three or more means walk away regardless of how the rest of the call felt.
Five quieter signals that
still mean walk away
These are softer than the eight big flags above but show up consistently with under-performing agencies. Any combination of two or three should make you reconsider.
No named contact
No team page online
Slow response times
Stock website photos
Recent reviews missing
The no-named-contact one is the most diagnostic. Agencies that hide who actually delivers the work are usually outsourcing to freelancers without disclosing it. Insist on knowing exactly who will own your account plus check that person's profile on LinkedIn. If they cannot provide names, they probably do not have the people.
Bad agency call vs
good agency call
Two 30-minute first calls. Same questions asked. Same retainer quoted. Different agencies on the other end. The contrast is striking once you know what to listen for.
Multiple red flags inside 30 minutes
- ✗"We have got our own way of doing things." Methodology never explained. Vague references to "proven systems" plus "battle-tested techniques".
- ✗"We can guarantee top 3 in 90 days for sure." Specific promise about positions outside their control. Either lying or planning to break Google's rules.
- ✗"All our clients are confidential." Refusal to share even anonymised case studies. No proof of work that has actually delivered.
- ✗"Standard 12-month contract, no early exit." Lock-in with no recourse if performance fails. The agency knows it might underperform.
- ✗"This price expires tomorrow plus only two slots open." Pressure tactics. Sales-led operation. Quality unlikely.
Zero red flags inside 30 minutes
- ✓"Let me walk you through our seven-stage pipeline." Methodology shared in detail. Diagrams or screen-shares of the actual process. No mystery.
- ✓"We expect 30 to 60 first-page rankings by month 12 based on past clients in your niche." Realistic ranges grounded in evidence. No promises about specific positions.
- ✓"Here are three anonymised case studies in your niche plus two named ones I can put you in touch with." Real proof. Real references available.
- ✓"Twelve-month commitment with 60-day notice. If we miss agreed KPIs at M6 you can leave." Structured commitment with exit recourse. Confident in performance.
- ✓"Take your time, decide when you are ready. We will hold the slot for two weeks." No pressure. Confident the work speaks for itself.
No guarantees. No lock-ins.
No vanity metrics. Just the work.
We work with UK startups on a clear monthly retainer from £350. No setup fee. No twelve-month tie-in trap. We will share methodology, case studies plus references on the first call. If anything we say sounds like a red flag, ask us about it plus we will explain.
This article closes our complete SEO Guides for Startups series. You now have the full operational reference: foundations, cost plus value, strategy plus execution, mistakes plus hiring. The next step is either acting on what you have read or coming back to specific guides when situations arise.
SEO Guides for Startups
The full index of every startup SEO question we have answered. Cost. Timescales. Strategy. Mistakes. Use it as your reference plus come back to it whenever a new question comes up.
More from the startup SEO guide
Now you can spot the red flags, the next question is what good vetting actually looks like. Questions to Ask an SEO Agency walks through the 12 screening questions plus what good answers sound like. How to Get Started with Startup SEO covers what the first 30 days should look like once you have signed. DIY SEO vs Hiring an Agency covers whether external help is the right path at all.