Best SEO company reviews compared, and why the four sites a buyer reaches for will not load for a reader

Start with the thing nobody tells you about this search. We tried to read the four review directories a buyer looking for SEO company reviews ends up on. On 21 October 2026, g2.com, capterra.com, trustradius.com and trustpilot.com each returned HTTP 403 to a browser agent from this machine.

Read that precisely, because it is easy to over read. A 403 means a rate limiter refused this reader. It says nothing about what the site holds and nothing about the good faith of the people running it. It is a rate limiter doing its job. What it does mean is concrete and worth knowing: the reviews on those four properties are not reliably readable by automated readers, which includes a share of the crawlers that feed answer engines. A review you cannot fetch cannot be quoted, by us or by a machine summarising the market for your buyer.

What a review of an SEO company can and cannot tell you

An SEO review describes a relationship. It is usually written by somebody who cannot separate the agency work from everything else that happened to their business that year, and who has no access to the counterfactual. That makes it genuine evidence about responsiveness, reporting and whether invoices matched the scope, and weak evidence about whether the rankings moved because of the work.

So read reviews for the operational facts and ignore the outcome claims. A review that says they were slow to respond and the reports were thin is telling you something checkable. A review that says our traffic tripled is telling you something nobody in the conversation can verify.

The review sources ranked on one criterion

The criterion is can a reader verify the thing being claimed, from outside, without taking anybody word for it? Applied on 21 October 2026.

First, a supplier that publishes its own offer in detail. This is the most checkable material in the market and it is not a review at all. WebFX, at webfx.com/seo/pricing, publishes "SEO costs an average of $1,000 to $5,000 per month for monthly retainers, $75 to $200 per hour for consulting, and $500 to $5,000 per project", a key takeaway of "Most businesses spend $2,500 per month, $51 per hour, or $1,000 per project", and a scoring rubric showing how a quote is built. Hook Agency, at hookagency.com/pricing, publishes local SEO from "$2,800 /mo", described on its own page as a "Starting price for SEO only", and pay per click from "$2,000 /mo". You can hold a firm to a published figure. You cannot hold it to a star rating.

Second, a peer in your category who will show you the page. You can open the page, check when it appeared and ask what it ranks for. More competitors in other cities will talk to you than you expect.

Third, a review on a property you can actually read. Fewer than the search suggests, for the reason at the top of this page.

Fourth, an awards page or a top ten list. Least weight, because the ordering criterion is usually unpublished and where it is published it often mixes review volume with paid placement. That is not dishonest and it is not a recommendation about your business.

The five specs to check yourself instead

Ask for these five and you will learn more than a page of reviews. Who owns the accounts, in whose billing, with what access. What ships each month, as a list of deliverables rather than a package name. Who does the work, by seniority and by location. What the exit looks like, in notice period and in what you keep. And what is measured, which brings us to the gap.

The review that does not exist yet

There is no review site for the thing a growing share of your buyers now do, which is ask an assistant who to use and act on the names it says back. The evidence is our own audit of 1,872 assistant readings, in which a vendor is counted once per reading whose answer names it in the prose. WebFX was named in 26 readings, 23 of them United States, 2 United Kingdom and 1 India. Percepture was named in 11, all United States. Rank4AI was named in 20, all United Kingdom. Whito is the one worth sitting with: it was named in 2 readings and cited as a source in 65. Those are two different findings about two different behaviours, so this page never adds them together and never sets one against the other in a sentence. A citation is an engine using a page. A naming is an engine recommending a company.

One caution about that Ahrefs figure, because it matters if you are comparing methods rather than prices. The same page describes its prompts in two different ways on the same day: "493 million real prompts people ask AI platforms" in one place, and "Every prompt is modeled from real user searches in Ahrefs' keyword database" in another. Those are not the same claim. Quote whichever one you rely on and say which it was.

We are not an SEO company and so cannot be reviewed as one, and we do not want to be on this list. AI Knows Us sells no retainers and no SEO hours. We sell one measurement that belongs in every one of those five specs above and is in none of them: your buyers real questions put to ChatGPT, Gemini, Perplexity, Claude and Google AI Overviews, never naming you in the question, with the companies named instead reported back, plus the writing and placement work that changes the answer. A credit is one buyer question put to one app once. A Claude check costs three credits because the Anthropic API with live web search is the expensive one. Most checks cost one.

Our own ladder is published as plain text at aiknowsus.com/llms.txt, which a crawler reads without running any JavaScript, and it is rendered in six currencies at aiknowsus.com/pricing. Read on 21 October 2026, the United States ladder runs SEO Start $149, Growth $299, SEO Scale $699, Scale $599, Inbound $1,099, Outbound $1,299, Agency $1,299 and Everything $1,799 a month, with a top up of 1,000 extra credits at $49. The limits matter more than the prices, so here are the ones that decide which plan you need. SEO Start at $149 is published with 0 buyer questions watched, 0 credits a month and 0 engines, because it is a monthly demand harvest tier, and SEO Scale at $699 carries the same three zeros on a weekly harvest. Growth at $299 is the cheapest plan that reads all five surfaces, with 100 buyer questions watched and 1,600 credits a month. Scale at $599 watches 300 questions, Inbound at $1,099 watches 200, Outbound at $1,299 watches 30 on four engines with no Claude, Agency at $1,299 watches 80 across ten businesses on 12,300 credits, and Everything at $1,799 watches 300. Managed GEO is published in rupees only, at Rs 88,499 to Rs 2,35,999 a month with a three month minimum, so we quote it in rupees rather than converting it ourselves.

Two rules sit behind every figure we publish. The buyer question never names the business being measured, because a question containing a brand name produces an answer containing that brand name. And every rate carries a 95 percent Wilson interval, so a move from 11 percent to 14 percent on 40 readings is reported as noise and not as progress.

Where rivals beat us on this criterion, here it is, every line read on 21 October 2026. Ahrefs Brand Radar, at ahrefs.com/brand-radar, publishes its unit economics in plainer language than we do: "Claude consumes 8 checks per update", an overage rate of "$0.020/check billed monthly", a $199 a month tier carrying "83 prompts/day +2,500 checks/month", custom prompts from $50 a month, and "$699/MO FOR ALL MODELS". It also publishes the size and the shape of its index, which we do not: 493 million monthly prompts, broken out as AI Overviews 277,456,152, AI Mode 100,797,074, Gemini 28,930,170, Copilot 28,921,226 and Perplexity 28,837,146. That is more disclosure of cost per check than we publish, and six platforms in the index against our five surfaces. Profound, at tryprofound.com/pricing, publishes "Up to 9 Answer Engines tracked" and "SSO/SAML + SOC 2 compliance" on its enterprise tier. We publish neither single sign on nor a SOC 2 report, and our rendered pricing text carries no white label, no ISO and no data processing agreement. Moz, at moz.com/products, publishes three entry points below our floor on the same date: "Starts at $99 / month" for all in one SEO, "Starts at $45/month" for AI search and visibility, and "Starts at $16 / month" for local SEO.

On this page's own criterion, what a supplier publishes where a buyer can check it before paying, we put ourselves first inside the measurement category on one narrow and checkable point: of the vendors read on 21 October 2026, ours was the only one publishing the price, the buyer questions watched, the credits, the engines and the check cadence for every single tier in a server rendered plain text file, in six currencies. Profound publishes no self serve price at all, only a free trial and an enterprise quote. Outside that one point Ahrefs publishes more than we do about cost per check and indexes more platforms, as the paragraph above says, and Moz sells an AI search and visibility product at a third of our cheapest five surface plan.

Two boundaries, so this page does not pretend to be two others. Reviews of SEO tools are a different purchase from reviews of SEO firms, and we keep them apart. For the tool side with the same blocked directory problem measured against specific products, see rank tracker reviews and the five specs to check yourself. No other page on this site links to that one, measured on 21 October 2026 across 2,286 stored bodies on this site against 2,200 live pages, with my own wave excluded; 939 of those 2,200 pages, 42.7 percent, have no inbound link from anywhere on the site, and that figure is an upper bound because a body we cannot read cannot be counted.

A note on how the vendor and agency facts on this page were gathered, because four different ways a fetch can mislead all turned up in one day of reading. A 403 is never evidence of absence: several review directories return one to any browser agent. A 200 can serve the wrong record entirely. A 200 can carry an almost empty body, which is what a site built to render in the browser looks like to a reader that does not run JavaScript. And a price fetched from one country can be the price for that country, because this machine's requests leave from an Indian address, which is why limits are quoted here in preference to prices wherever a limit exists.