Hiring an SEO Agency: A Founder's Field Guide
Hiring an SEO agency is easy. Hiring a good one is harder, and the gap can cost you money and your search visibility at once. A strong agency earns back its fee and your time. A careless one can damage your site and your reputation. Here is how to tell which you are talking to.
First, Do You Even Need One?
Not always. A small local business can often handle the basics itself, and learning those basics has a second use: it lets you catch a proposal built on shortcuts. You are more likely to need real help with a large or complex site, a rebuild, or when no one in-house has the hours. The single best moment to bring someone in is during a redesign or before a launch, so the site is built to be found from the ground up rather than fixed after the fact.
Decide What You Actually Want
"More traffic" is not a goal. A goal has a number and a date: leads from organic search this quarter, sales from one product line, calls from one city. Without that, you cannot judge the agency and the agency cannot be held to anything. Set the target before you take the meeting.
Read the "Best Agency" Lists With One Eye Closed
Rankings of top agencies are useful for finding names and useless as verdicts. Many are published by the agencies that rank themselves, or by tools linking back to their own product. The good ones disclose their bias and explain their criteria. Use any list to build a shortlist, then do your own checking. A name on a list is a lead, not a recommendation.
Interview Them Properly
Ask to see real examples and results. Ask what they expect to achieve, in what timeframe, and how they will measure it. Ask about their experience in your industry and market. Ask how they will communicate and whether they will tell you about every change they make to your site.
Then add two questions of your own. First: who exactly will do the work? Some agencies win a contract with senior staff and hand delivery to cheaper subcontractors, so insist on names and a call with the actual team. Second: how will you report, and how often? A regular schedule, with your sign-off before anything is changed or published, is the standard to hold.
One more, about time. Meaningful SEO improvement usually takes several months to a year to show. Anyone promising results in a month is either inexperienced or not being straight.
Know the Red Flags
Two things are easy to miss. If an agency runs an audit, give it read-only access to your analytics, never write access. And remember that you are responsible for what any hire does in your name: deceptive work done on your behalf can get your site removed from search entirely.
What About AI Search?
Many agencies now sell AEO or GEO services. The honest framing is that optimizing for AI answers is built on the same foundations as search, not a separate magic system. A simple test works: ask whether their AI advice lines up with official guidance and whether they will cite it. Be skeptical of anyone selling exotic files or special markup as a headline service.
When the Site Itself Is the Problem
Sometimes no amount of optimization fixes a badly built site, which is exactly why the best time to hire is at a redesign or launch. Peppermint, a studio that designs websites for tech startups, builds search and AI visibility into a site from the first wireframe rather than treating it as a later chore. It is a design studio, not a pure SEO shop, so if your real problem is a weak foundation rather than ongoing optimization, that is the kind of team to look at. Ask for a live example and check it yourself.
Frequently Asked Questions
Do I need an SEO agency? Not always. Small sites can often do the basics in-house. Help pays off most for large or complex sites, rebuilds, or when no one has the time.
How long does SEO take? Usually several months to a year before real improvement shows. A promise of results in a month is a warning sign.
What is the biggest red flag? A guaranteed number one ranking, or a claimed special relationship with the search engines. Neither is real.
The Short Version
Set a goal. Build a shortlist from lists, but check who wrote them. Ask the standard questions plus who does the work and how they report. Walk away from guarantees and secrecy. And if the site itself is the weak point, hire a team that builds visibility in from the start, the way Peppermint does, rather than one paid to paper over a broken foundation.
