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Traffic has dropped, rankings are stuck, and no one on the team can say why.
For a lot of teams, that is when an SEO audit stops being optional. The cause is usually buried in the site's setup, its content, or how Google reads the pages. In early 2026, 68% of Google searches ended without a click as AI Overviews answered more queries on the page, so a hidden problem now costs you more.
An SEO audit finds that problem and returns a prioritized, owner-assigned list of fixes. The best providers tie those fixes to the pipeline, so the audit ends in revenue instead of a shelved report.
This review covers eight SEO audit services: what each does, what it costs, and who it suits, whether you want a deep technical audit or one tied to pipeline. If you already know your site needs the full teardown, you can book an audit scoping call before you read on.
How we reviewed these SEO audit services
Plenty of agencies put SEO audits on the homepage and hand back a generic crawl. We reviewed these eight across six weighted factors, weighted most on how each one actually audits and executes, because an agency that cannot diagnose the problem, prioritize the fixes, and tie them to pipeline is running a checklist.
A note on transparency. We placed ourselves at number one, and we want to be upfront about why. We know our own process better than anyone else's, and we run differently because the team that finds the issues also fixes them. For every other agency, we worked from publicly available information: services pages, case studies, and Clutch reviews. We did not rank the field by a single score, so read the profiles for fit rather than position.
The 8 best SEO audit services in 2026
1. RevvGrowth
RevvGrowth is a business-to-business software-as-a-service (B2B SaaS) growth agency, and our SEO audit service connects technical, content, off-page, and AI-search findings to pipeline and revenue. The same team that runs the audit also fixes what it finds. Most audits end in a slide deck; ours ends in a working plan, scored, owned, and tracked to done.
Core services
• Technical SEO audit: crawlability, indexing, redirects, canonicals, and Core Web Vitals
• Content and on-page audit: content gaps, topical authority, and search-intent mapping
• Off-page SEO audit: backlink profile, toxic links, and authority gaps
• AI search visibility audit (AEO and GEO) for AI Overviews and large language model (LLM) answers
• Post-audit execution across technical, content, and off-page
How our SEO audit works
Step 1: Discovery. We start with an onboarding questionnaire and working sessions on your product, market, and buyers.
Step 2: Data collection. We then crawl the site with Semrush and Screaming Frog to surface every technical issue.
Step 3: Scoring and review. We score each issue High, Medium, or Low, assign an owner, and review the log with your SEO team. One recent audit flagged 363 links to redirects, 369 thin meta descriptions, and 160 short title tags.
Step 4: AI search visibility audit. Our LLM content scorer grades every page against a 29-point rubric, checking whether each section can be cited by ChatGPT, Perplexity, and AI Overviews, the core of a modern AI search visibility audit.
Step 5: Content plan. We flag the pages that need reworking and hand you blog topics mapped to keywords and intent.
Step 6: Execution. We fix the issues alongside your team, so the audit shows up in your rankings instead of a folder.
Best for: B2B SaaS and technology teams that want audit findings tied to marketing qualified leads (MQLs), pipeline, and revenue.
Pricing: Content and SEO retainer runs $3,000 (Standard), $5,000 (Premium), and $8,000 (Advanced) per month, with a full SEO audit included in every tier.
RevvGrowth in practice: Verified client results
For Atlan our AI-assisted SEO and AEO engine drove, with no paid media:
• Organic traffic up 5x, and top-3 keyword rankings more than doubled
• $4M in net-new revenue sourced from SEO, and $12M in total revenue influenced
• 90% of closed-won deals had read at least one blog
For OvalEdge, we ran a content engine of >40 SEO blogs a month, each tied to a keyword and intent and clustered around data governance, catalogs, and metadata management, with internal links and CTAs connecting content to the product.
In parallel, we reworked underperforming pages against the top-ranking results for intent, structure, and snippet eligibility, and rewrote metas for clickable, differentiated titles, all built for both Google and AI answer engines.
The results:
Ranking keywords grew from 1,800 to 5,800, and top-10 positions from 161 to 1,300
Organic clicks rose from 2,165 to about 8,000 a month, and average Google position improved from 16.2 to 7.9
For Everstage, a sales compensation platform, we published 200+ category pages via an AI content engine:
• Keywords in the top 3 nearly tripled, from 155 to 436
• Daily organic traffic more than doubled
2. Onely
Onely is known for deep technical and AI-search work on the indexing, rendering, and crawl-budget problems many providers avoid.
Core services
• Technical SEO audits: crawlability, indexing, rendering, JavaScript SEO, Core Web Vitals, and server-log analysis
• International SEO: global market analysis, hreflang strategy, and localization
• Generative engine optimization (GEO): content and structured data built to get cited in AI answers
What makes Onely different: engineers run the audit and stay on through the fixes.
Pricing: Clutch reports a $10,000+ minimum and $200 to $300 per hour.
3. Go Fish Digital
Go Fish Digital pairs technical SEO with digital PR and content.
Core services
• Technical, on-page, and off-page SEO, with keyword research and content optimization
• Digital PR: earned links and brand citations on authoritative sites
• Generative engine optimization (GEO): page- and passage-level optimization for AI Overviews, ChatGPT, and Copilot
What makes Go Fish Digital different: plain-English technical findings, plus links earned through digital PR.
Pricing: Clutch reports a $5,000+ minimum.
4. Victorious
Victorious builds clearly scoped, productized audits, and is one of the few that publishes its pricing.
Core services
• SEO audit across technical, on-page, and content, plus a Google Analytics audit
• International and enterprise SEO: hreflang, geo-targeting, and content localization
• Answer engine optimization (AEO): content structured to get cited in AI Overviews, ChatGPT, Perplexity, Gemini, and Claude
What makes Victorious different: the same defined scope every time, with public pricing up front.
Pricing: Published at $5,000 to $20,000 per month; Clutch lists a $50,000+ project minimum.
5. Siege Media
Siege Media is a content-led SEO agency on a strong technical foundation, with clients like Zapier, Zendesk, and HubSpot.
Core services
• SEO consulting: content pruning, keyword research, internal-linking and indexation audits
• Digital PR and link building via data-driven storytelling and 5,000+ publisher relationships
• Generative engine optimization (GEO) and LLM optimization: content built to get cited in AI answers
What makes Siege Media different: the audit feeds a wider content and growth plan.
Pricing: Clutch reports a $5,000+ minimum and $100 to $149 per hour.
6. Ignite Visibility
Ignite Visibility is one of the best-known full-service SEO agencies in the US.
Core services
• Technical and full-site SEO audits, on-page and E-E-A-T (experience, expertise, authoritativeness, and trustworthiness) content
• International and multilingual SEO: hreflang and per-market keyword, content, and link strategy
• AI search visibility (AEO and GEO): structured data and entity mapping to get cited in AI Overviews, ChatGPT, Gemini, and Perplexity
What makes Ignite Visibility different: full-service scale, with the headcount to fix issues at volume.
Pricing: Clutch reports a $10,000+ minimum.
7. NP Digital
NP Digital is Neil Patel's agency, and its name recognition makes it a common shortlist entry.
Core services
• Full-scope SEO: technical, on-page, off-page, keyword and competitive research, with E-E-A-T
• Content marketing and digital PR, with global reach across worldwide offices
• AI search optimization: entity, schema, and citation work so content appears in ChatGPT, Gemini, AI Overviews, and Perplexity
What makes NP Digital different: it brings large proprietary datasets and a repeatable process.
Pricing: Clutch reports a $1,000+ minimum.
8. Amsive
Amsive is a performance agency with deep expertise in Google core updates and algorithm changes.
Core services
• Advanced technical SEO: site architecture, Core Web Vitals, structured data, JavaScript rendering, and internationalization
• Google algorithm-update recovery: diagnosis and recovery from core updates
• Answer engine optimization (AEO): LLM share-of-voice and brand-mention tracking across AI Overviews, ChatGPT, Gemini, and Perplexity
What makes Amsive different: read against Google's algorithm history, led by Lily Ray, VP of SEO and AI Search.
Pricing: Clutch reports a $25,000+ minimum, based on a small sample of 3 reviews.
How much do SEO audit services cost?
An SEO audit runs from a few hundred dollars for a one-time report to five figures a month when it is part of a full retainer. The pricing model matters more than the sticker price:
- One-time audit: a standalone report, priced by depth, usually a few hundred to a few thousand dollars.
- Hourly consulting: scoped by the hour, with reported rates from about $100 to $300.
- Audit inside a retainer: when the same team also fixes what it finds, the audit is folded into a monthly engagement, commonly a few thousand dollars to five figures.
Two things move the number: how much the audit covers (a quick crawl costs less than a full technical, content, and AI-search audit) and whether it ends in a report or in shipped fixes. Across the providers here, reported pricing spans about $1,000 to $25,000+ (Clutch minimums); the comparison table has each agency.
RevvGrowth includes a full audit in every retainer, from $3,000 a month.
See how an audit feeds an ongoing SEO strategy.
How to choose your SEO audit partner?
Pressure-test any agency on these before you sign.
- Can they show findings from a site like yours? A real partner points to comparable work rather than a generic report.
- Do they prioritize the fixes, or hand over a 200-point list? The best rank findings by impact and tell you what to fix first.
- Do they fix what they find, or stop at the report? Audits that flow into shipped fixes move rankings.
- Do they audit for AI search as well as Google? The strongest check is whether pages can be cited in AI Overviews and LLM answers, through AEO and GEO, as zero-click searches keep rising.
- What do they report, and is it tied to revenue? Look for organic traffic, rankings, and pipeline influenced over crawl scores.
Key takeaways
Pick for fit rather than size, and favor the audit that ends in a prioritized plan.
• RevvGrowth is the pick for B2B SaaS teams that want an audit tied to pipeline and revenue.
• Onely is built for large, complex, or JavaScript-heavy sites with deep technical problems.
• Amsive specializes in Google core-update recovery; Go Fish Digital pairs technical SEO with digital PR.
• Victorious works best when you want a fixed scope and visible pricing.
• Siege Media fits SaaS, fintech, and ecommerce brands that lead with content.
• For enterprise scale and a familiar name, Ignite Visibility and NP Digital are safe bets.