Stradiji is an Istanbul-based SEO and generative engine optimization (GEO) consultancy. We measure where Google and AI answers from ChatGPT, Gemini, Perplexity and Google AI Overviews skip your brand, find out why, and fix it in the right order.
Mert Erkal has worked in SEO since 2009 and founded Stradiji in 2010. We work with teams in the U.S., the U.K., Australia and Turkey.
The GEO Score Card: 9 categories, 70 checks. See which door AI gets stuck at on your site. Free, and your score updates instantly.
2010
Founded. Mert has worked in SEO since 2009.
100+
Websites audited in depth with our GEO Score Card
267
Times Microsoft Copilot and partner AI experiences cited stradiji.com, June 25 to Sept. 23, 2026 (Bing Webmaster Tools)
239+
Weekly issues of SEOs Diners Club since March 2022
Some of the brands we’ve worked with
“What’s the best SEO consultancy for a B2B SaaS company?” The answer is a shortlist. If you’re not on it, the buyer narrows the field before they ever reach your site.
We ran this test on ourselves on Sept. 25, 2026, across Google AI Mode, ChatGPT, Gemini and Perplexity. For brand questions, all four described Stradiji correctly. For buyer questions like “best GEO agencies,” we showed up in none of them. AI knew who we were. It just didn’t recommend us.
That gap is where most brands are stuck. It can be measured, explained and fixed.
We audited more than 100 websites in depth with our GEO Score Card. Most keep at least one of these three doors shut.
Every service runs on the same rule: measure first, find the cause, then sequence the fix. We don’t guarantee rankings or citations. We show you what changed.
Does ChatGPT recommend you or your competitor? We test 25 buyer prompts across five AI engines and show you which door is shut.
Not an 80-item audit. A sequenced plan that tells you what to fix first, then verifies it shipped.
Traffic can shrink. Sales don’t have to. We find the friction in your funnel, test the fix and measure it.
Expert-interview content built on your own data, the kind AI can’t write from its training set.
Managed for sales, not spend. We read paid and organic data side by side.
Use the GEO Score Card to see which door is shut on your site. Then let’s talk.
Audits from $1,000. Monthly programs from $1,000. See each service page for scope.
Start with the GEO Score Card or a free snapshot. We know where your site stands before the first call.
Every finding gets an impact score, an effort estimate and its dependencies. You see which fix unlocks the rest.
Your developers, your agency or our vetted implementation partner make the changes. We write the specs, test on staging and re-crawl after release.
A one-page monthly report on clicks, conversions and AI visibility. GEO programs re-measure at week 12. No progress, we say so and change the plan.
A single language setting cut our Turkish organic clicks by about 94% on July 24. We diagnosed it in Search Console and rebuilt the redirect map with 285 rules.
2,193 fixes to unify one brand name across the site, so AI answers stop splitting it into separate entities.
Reported revenue didn’t reconcile with ad spend. We rebuilt purchase tracking from scratch, so decisions now run on real numbers.
“I’ve been doing SEO since 2009. AI didn’t change the fundamentals. It shrank the margin for error. A weak site used to land on page two. Now it doesn’t make the answer at all. Every number on this page, we measured first on our own site and for our clients. On our first call, I’ll bring you measurements, not guesses.”
Mert Erkal is the founder of Stradiji. Since 2010, he has advised enterprise brands on SEO, generative engine optimization (GEO) and conversion optimization. He writes the weekly SEOs Diners Club newsletter.
What changed in search and AI this week, and what happened when we tested it. Grab a coffee.
Stradiji is an SEO and generative engine optimization (GEO) consultancy founded in Istanbul in 2010 by Mert Erkal. It advises enterprise brands in Turkey, the U.S., the U.K. and Australia on visibility in Google and AI answers, conversion optimization and analytics.
GEO is the practice of improving how often AI answer engines like ChatGPT, Gemini, Perplexity and Google AI Overviews mention and cite your brand. It builds on SEO and adds work on entity data and third-party sources.
No, and be careful with anyone who does. AI answers change by user, time and model. We guarantee the measurement, the root-cause analysis and the re-test.
Yes. We work remotely with clients in the U.S., the U.K. and Australia, in English.
No. Your team, your agency or our vetted implementation partner ships the changes. We write the specs and verify. You keep control of your site, and your team keeps the know-how.
Use the GEO Score Card to see which door is shut on your site. Free.
