Public website change monitoring

Monitor a public storefront with reviewable evidence.

A nine-step checklist for product, marketing, support, and web teams that need a small public storefront baseline and a defensible same-scope rerun.

9 operating stepsStatic public HTML onlyUpdated August 14, 2026

A useful monitoring record answers a narrow question: did the agreed static public facts remain the same across two dated captures? It does not claim that the full site worked, that a visitor saw the same render, or that conversion changed.

The discipline is simple: freeze the scope before capture, preserve its lineage, and refuse to turn a changed test into a same-scope comparison.

The checklist

Nine steps from scope to evidence handoff.

  1. 01

    Confirm authority

    Use only a public hostname the buyer is authorized to evaluate. Do not infer permission from public reachability alone.

  2. 02

    Freeze the URLs

    Name the exact public HTML URLs. Avoid crawling, account routes, forms, carts, checkout, query strings, and fragments.

  3. 03

    Choose observable checks

    Select only facts static HTML can support: status, title, canonical, noindex observation, structured-data presence, text, selectors, or same-domain references.

  4. 04

    Write exact expectations

    Record one expected value for every URL and check. A vague goal such as page looks right cannot produce auditable drift evidence.

  5. 05

    Capture the baseline

    Record the timestamp, expectation, observation, status, and source-linked evidence for the complete frozen scope.

  6. 06

    Bind the lineage

    Preserve the normalized configuration digest, tool version, baseline hash, schema, row count, and capture timestamp.

  7. 07

    Wait the agreed interval

    Do not present an immediate repeat as stability evidence. The interval must elapse before the scheduled same-scope rerun.

  8. 08

    Rerun the same scope

    Use the exact baseline URLs, checks, expectations, and transport bounds. A changed scope is a new comparison, not a continuation.

  9. 09

    Classify and hand off

    Report PASS, DRIFT, or UNAVAILABLE with the evidence and limits. Preserve full PASS rows as well as exceptions.

Frozen checks

Choose facts the source can actually support.

01

Availability

Final HTTP status for one explicitly configured public URL.

02

Discovery signals

Title, canonical URL, noindex observation, and structured-data presence.

03

Public content

Literal visible static text and bounded selectors in returned HTML.

04

References

Exact same-domain href or src values, without fetching the referenced asset.

Evidence classes

Keep failure and change separate.

PASS

The observation matches the exact frozen expectation or baseline value.

DRIFT

The request completed, but the observation differs from the frozen comparison.

UNAVAILABLE

The evidence could not be collected within the bounded request workflow.

An unavailable observation is not proof of drift. A changed expectation is not proof that the old page failed.

Claim boundary

Static evidence is useful because it stays narrow.

  • No JavaScript execution, rendered-browser testing, or visual comparison.
  • No sign-in, form submission, cart, checkout, analytics, or customer data.
  • No asset fetching, robots.txt crawl, security scan, or accessibility audit.
  • No legal-compliance, conversion-accuracy, causation, or outcome claim.
  • No guarantee that a PASS row represents every visitor, region, cache, or device.

Managed pilot

Use the free runner, or delegate the operating work.

The core software is free and MIT-licensed. The $250 managed pilot adds written scope design for one buyer-authorized public domain, up to six URLs and 20 checks, a baseline, one same-scope rerun after at least 72 real hours, source-linked CSV and Markdown, manifest verification, and one factual correction.

The public scope review is non-binding. It creates no order, reservation, payment obligation, or work. The exact scope, price, payment method, and deadline require separate written buyer acceptance before work begins.

Review the complete managed pilot scope Inspect the labeled sample output

One domain. One frozen scope.

Need the evidence operated for you?

Request a public, non-binding scope review for the $250 managed pilot. GitHub sign-in is required, and the request and response are public.

Request the $250 pilot scope review OpenAI Codex materially assists the managed work. No separate personal human review is promised. Only public, non-security input is eligible.