Why your SEO agency isn't working
Five honest reasons your monthly SEO retainer hasn't moved the needle, and what to actually do about it.
Most SEO agencies sell time. Time on technical audits, time on content briefs, time on link outreach. If nothing is happening to your rankings after six months, here are the usual culprits.
Reason 1: They are doing surface-level work
Every month: a small technical audit, a few generic optimisation suggestions, maybe a blog post brief. None of it touches the structural problems with the site or the content strategy.
You can spot this by the reporting. If the monthly report is mostly "we did the work" and very little "this is what changed in your rankings/traffic/revenue", they are billing for activity, not outcomes.
Reason 2: They write content, but it's bad
Most agency content is written by underpaid freelancers who don't know your industry. The articles read as competent and forgettable. They don't rank because they don't say anything new and don't have the authority signals to outrank existing sources.
The fix: either source content from a senior writer who genuinely knows your space, or have someone on your team write it. Generic agency content has never worked well; in 2026 with AI detection, it's actively penalised.
Reason 3: They focus on the wrong keywords
You wanted to rank for "web design London". They show you progress on "London-based design studio specialising in conversion-focused web". Yes, technically the second one is easier, but it gets one search per month.
Real keyword strategy balances achievability with traffic value. Many agencies pick easy wins that look good in reports but don't drive business.
Reason 4: They don't build links
Backlinks remain a top-three ranking factor. Many agencies have stopped building them because Google penalises bad link-building. But they didn't replace that work with anything; they just removed the hardest part of the job.
If your agency hasn't earned you any new backlinks in six months, that's a major problem.
Reason 5: The site has structural issues they can't fix
Your platform is slow. Your content management workflow is broken. Your business model doesn't naturally generate content. No amount of monthly retainer fixes this. The agency is doing what they can within a system that doesn't support SEO success.
In this case, the agency isn't the problem — the situation is.
What to do
Audit the agency yourself. Look at the work they've delivered. Is any of it shippable, original, useful? Compare to what you'd accept internally.
Ask for outcome reporting. Traffic from organic search, rankings on your priority keywords, conversions attributed to organic. If they can't or won't show this, that's the answer.
Consider in-housing. A motivated internal hire who knows your business well usually outperforms an external agency. The catch is finding the right person.
Or commit to multi-year work. Real SEO compounds slowly. Agencies often get fired in month 12 just before the work would have started paying off. If you stay the course with a competent agency for 18-24 months, results are usually obvious.
The honest truth is most SEO work fails because expectations don't match reality. SEO is slow, requires good content, and rewards staying consistent. Agencies that promise quick wins are usually doing damage.