Onely Review: The Technical SEO Powerhouse That Actually Delivers

Introduction: When Technical SEO Feels Like Rocket Science

Ever felt like your website’s SEO issues are buried under layers of JavaScript, crawl errors, and mysterious ranking drops? That was me—until I discovered Onely, the self-proclaimed (and widely endorsed) "most advanced Technical SEO agency on the planet." Spoiler: They live up to the hype.

Founded by Bartosz Goralewicz, a JavaScript SEO pioneer whose work has literally influenced how Google handles JS-heavy sites, Onely isn’t your typical agency. They’re a specialized strike force for Fortune 100 brands and ambitious mid-sized companies drowning in technical debt. After three years of working with them (and watching competitors flail), here’s the unfiltered breakdown.

The Deep Dive: What Sets Onely Apart

1. Technical Mastery That Feels Like Sorcery

• JavaScript SEO Wizardry: Onely doesn’t just diagnose JS rendering issues—they rewrite the playbook. One client saw a 129% organic traffic boost after their team untangled a spaghetti code of third-party scripts.
• Log File Analysis & Crawl Budget Optimization: They uncovered 20% wasted crawl activity on my site, freeing up Googlebot to index what actually mattered.
• Speed Fixes That Stick: Moved my Largest Contentful Paint (LCP) from 5.2s to 1.8s by auditing everything from server configs to lazy-loading blunders.

Minor Critique: Their reports are dense—think PhD thesis-level detail. Non-technical stakeholders might need a translator.

2. Client-Centric Workflow (No Agency BS)

• Transparent Pricing: No hourly billing surprises. Their fixed-price audits include actionable steps, not just vague "optimize metadata" fluff.
• Trello & Slack Integration: Tasks are tracked like a Swiss train schedule. One user praised their 24/7 responsiveness—even during a midnight site migration panic.
• Flat Hierarchy: Unlike agencies where the "A-team" vanishes after onboarding, Bartosz and senior analysts stay hands-on.

Room to Grow: A few clients wished for more frequent ranking performance snapshots, though this improved over time.

3. Results That Move the Needle

• Traffic Quality Over Vanity Metrics: A seasonal business saw 40% YoY revenue growth despite only a 10% traffic bump—thanks to Onely’s focus on converting keywords.
• Indexation Rescues: One enterprise site went from 50% indexed pages to 92% in 6 months.
• Google Discover Wins: Multiple clients reported surge traffic from Discover after Onely optimized for topical authority.

Pros vs. Cons: The Honest Rundown

✅ Strengths

• Unmatched technical depth (they’ve literally changed how Google crawls JS).
• No cookie-cutter solutions—every audit is tailored to your CMS/stack (Magento, WordPress, custom React).
• Culture of ownership—clients call them "an extension of our team."
• Transparent workflows (Trello boards, screen recordings, annotated screenshots).

⚠️ Minor Considerations

• Not for beginners—if you need "SEO 101," look elsewhere.
• Poland-based team means some overlap gaps for Americas-based clients (but they compensate with async clarity).
• Pricing reflects expertise—worth it for serious players, but SMBs might need to budget carefully.

Final Verdict: The Gold Standard for Technical SEO

Onely isn’t just another agency—they’re the equivalent of hiring Google’s search team. Their ability to diagnose, prescribe, and implement fixes (even in complex dev environments) is staggering.

Who It’s For:

• Enterprises with multi-domain ecosystems.
• Dev teams needing SEO-aware coding guidelines.
• Anyone who’s been burned by superficial "SEO experts."

Who It’s Not For:

• Startups wanting $500/month "guaranteed #1 rankings."
• Teams allergic to technical jargon (though their PMs do simplify brilliantly).

The Bottom Line: If Technical SEO were a martial art, Onely would be the black belt you fly across oceans to train with. After years of agency disappointments, they’re the rare partner that overdelivers—and makes you wonder how you ever settled for less.