Technical foundation carries 20 of the 100 points on the Atlas scale — the largest single weight — because it is the only layer whose failure is total. Everything above it is inherited from it.
This is the layer that fails silently. A canonical pointing the wrong way costs nothing visible: the page still loads, the copy still reads well, the design still looks finished. The loss shows up two steps away, in a number nobody connects back to a line in the head of a template.
So the work is not a checklist. It is a diagnosis: establish what the systems actually see, compare it to what the site intends to say, and fix the disagreements in the order that moves the number.
| Defect | What it looks like | What it costs |
|---|---|---|
| A canonical naming the wrong URL | Two URLs serve the same product; the canonical names the one you do not sell from. | Rankings consolidate onto a page with no add-to-cart on it. |
| A noindex left on a live template | A staging directive shipped in the head and nobody read the head. | An entire page type disappears from the index, quietly, at once. |
| Facets inside the crawl path | Filter combinations generate URLs without limit. | Crawl budget spent on pages nobody has ever searched for. |
| Content that arrives after the HTML | The document is a shell; the copy is fetched by script. | Some systems read the page and some read an empty one — inconsistently. |
| A sitemap that contradicts the site | Submitted URLs redirect, 404, or are canonicalised elsewhere. | The one file you fully control states an intent the site denies. |
| A migration without a redirect map | Old URLs return 404 where they should return 301. | Accumulated authority is discarded at the moment you most need it. |
| Vitals measured in the wrong instrument | Lab numbers from a warm cache, no consent banner and no third parties. | You optimise something the field data never measured. |
Moves 35 of 100 points. The muted categories are not this service’s job, and saying so is the point: a proposal that claims to move all eight is describing a retainer, not a diagnosis.
Delivered as a document, not a dashboard login: dark cover, verdict columns, evidence IDs, a provenance line stating where every number came from. Shipped in two-week loops — the smallest change that moves the number, then the next one.
No fabricated clients, statistics, testimonials or rankings appear on this site. Where a figure is not evidenced it is not printed, and the absence is stated instead.
Atlas reads the site before the first conversation. These are the seven things worth knowing first.