The ThreeSeven Standard

The four ways a website fails silently, and the bar every site I run has to clear, in public.

This is the bar every site I build launches at and is re-verified against every 90 days. Published so you can hold me to it. Measured with Google’s own public tools so you can check any number yourself. Typical website maintenance reports the work it did. This page publishes the result it’s held to.

Version 1.1 · last changed 26 August 2026 · what changed

The Standard, v1.1

The four pillars

For each pillar: the public tool that measures it, and the score a site has to reach. A free Standards Report checks a site using only what’s publicly visible, under the published grading rules.

Performance

Measured with
Google PageSpeed Insights
Standard
90+ mobile / 95+ desktop
Held for you
re-verified every 90 days, slips fixed free

How fast your site loads and responds on a phone, on a real-world connection, not in a demo. Google calls these measurements Core Web Vitals, and they directly affect both your rankings and how many visitors stay long enough to become enquiries.

Most visitors abandon a page that takes more than three seconds to load. The usual culprits are oversized images and bloated page-builder code: invisible to the owner, obvious to every prospect on a phone.

Accessibility

Measured with
Automated WCAG 2.2 scanning, plus a manual keyboard pass
Standard
zero detected errors, every form usable without a mouse
Held for you
re-verified every 90 days, slips fixed free

Whether every visitor can actually use your site: read the text, navigate the pages, and complete your forms, including people with low vision, older visitors, and anyone who can’t use a mouse.

Common failures are low-contrast text, unlabeled form fields, and missing image descriptions. Each one turns away real customers, and accessibility requirements are increasingly written into law. The current benchmark is WCAG 2.2.

Zero detected errors is a measurement, not a certification. Automated scanners reliably catch contrast, missing labels, and broken heading structure, which is roughly a third of what actually matters. They can’t tell you whether an image description is meaningful or whether a form can be completed with a keyboard. So I scan, and then I go through the site by keyboard before launch. You should know which part of that number came from a machine.

AI Readability

Measured with
schema validation, crawler access checks, and a rendered-content test
Standard
AI crawlers reachable, content readable without JavaScript, structured data valid and matching the page
Held for you
re-verified every 90 days, slips fixed free

Whether AI search tools, from ChatGPT to whatever comes next, can actually read your site: reach it, parse it, and identify who you are, what you do, and where you operate.

Three things stop them, and most site owners have never checked any of them. Your robots.txt may be blocking AI crawlers outright, often added by a plugin nobody remembers installing. Your content may only exist after JavaScript runs, which some tools never wait for. And your structured data may be missing, invalid, or describing something different from what is on the page, which is worse than having none.

This pillar does not promise an AI will recommend you. Nobody can promise that honestly, and the published research on whether structured data increases AI citations is genuinely mixed. What I verify is that nothing on your site is stopping an AI from reading it. That is the part within anyone’s control, so that is the part I hold.

Measured, in writing

What grading against it looks like.

Three pages from a real report, anonymised. This is what grading against the ThreeSeven Standard looks like.

A page of a Standards Report showing the summary, the speed bars and the four-pillar verdict table.
The verdict on all four pillars.
A page of a Standards Report showing the top finding on each pillar, and why it matters.
The top finding on each pillar, and why it matters.
A page of a Standards Report listing every issue found on the pages tested.
Everything found, listed.

See the sample report  (opens in a new tab)

The guarantee, defined

What the ThreeSeven Standard means for each pillar.

The Standard Guarantee refunds a month if a verification finds your site below the bar and it isn’t restored within 14 days. This is what “the bar” means.

Performance
The bar90+ mobile, 95+ desktop on PageSpeed Insights
Below itEither number under the threshold at a 90-day check
Accessibility
The barZero detected errors, every form completable without a mouse
Below itAny detected error, or a form that needs a mouse. Not a warranty of WCAG conformance
Search
The barEvery page indexed, zero coverage errors in Search Console
Below itA content page missing from the index, or a coverage error left standing
AI Readability
The barCrawler access as you’ve chosen it, content readable without JavaScript, structured data valid and matching the page, a semantic heading structure
Below itAny of the four failing. Not a warranty that an AI tool will cite you

Applies to Essential, Professional and Premier. Custom plans have their own terms. Fourteen days, not thirty, because almost nothing that slips takes more than an hour to fix. If a site is still below the bar 30 days after a failed check, or fails two checks in a row on the same pillar, the client can leave with no setup fee balance owed. A failed check is the median of at least 3 runs. The full guarantee

Version history

When the bar moves, it moves in public.

Every change to this page, dated. If your site is on the service, these are the changes it was brought up to at no charge. Each new version takes effect at least 90 days after it’s published, or on a law’s own deadline if that’s later, so a change to the bar is never a failure on the day it’s announced.

v1.126 August 2026

Pillar 04 renamed from AI visibility to AI Readability, and re-instrumented: AI crawler access, content readable without JavaScript, valid structured data matching the page, and semantic heading structure replace the Rich Results Test. The pillar no longer claims structured data earns AI citations.

v1.013 August 2026

First published version: performance, accessibility, search, and AI visibility, each with a named instrument and threshold.

A free Standards Report grades a site from outside, with no account access. The thresholds it uses, the pages it tests and the limits of what it can see are published separately.

Read the grading rules 

When the Standard moves

The Standard isn’t a one-time target. The service keeps your site meeting it.

The service exists to hold your site at it, on a schedule, with proof.

  • Verified at launch, then every 90 daysAll four pillars re-measured with Google’s public tools. Anything that slips gets fixed at no charge.
  • Monitoring runs daily. Content updates go live within ten business days.Uptime, security, backups, and your content changes, all inside one monthly fee.
  • A plain-language report with every verificationEnquiries, visitors, and what your content earned. Proof, four times a year, in writing.
  • When this page changes, your site changes with itThe Standard is versioned. New thresholds, new law, new AI requirements: covered, never invoiced.

Free · usually in your inbox the next business day

Find out what’s failing silently.

The free report covers three pages I choose and gives you the top finding on each pillar. The full report ($229, credited toward your first month if you subscribe) covers every finding on those pages, with context and page-load detail.

A page of a Standards Report explaining what the report measures and what it leaves out.
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