The Census · 2026-Q4 · sp500

https://williams.com/ · ranked 491 in its cohort · 32 pages read · 51 tests · 20 September 2026

Scan

Williams Companies

Score

49/100

13 of 51 tests pass · 51 points still on the table

You · 49
NOT READY 0–39 WEAK 40–59 ADEQUATE 60–74 STRONG 75–89 EXEMPLARY 90–99

We ran all 51 scored tests across 7 dimensions, against the 32 pages we read.

Weak

The fundamentals are in place and the machine-readable layer on top of them largely is not.

Do these three first

The fastest 7 points on this scan

1 +3

AIR-1.4 · small effort

Content Signals declared in robots.txt

No Content-Signal line in robots.txt. Missing: search, ai-input, ai-train.

Do this: Declare a Content Signals position in robots.txt.

2 +2

AIR-2.2 · medium effort

Progressive disclosure content ships in the initial HTML

0 of 30 pages ship every disclosure panel populated in the raw HTML. 5 pages load more content on scroll with no paginated fallback.

Do this: Render every panel and hide it with CSS.

3 +2

AIR-1.7 · small effort

Every page emits a valid, self-consistent canonical

0% of sampled pages emit a valid, self-consistent canonical. 32 have problems.

Do this: Emit a self-referencing canonical by default.

Nine dimensions, most to least left on the table

32 pages crawled

Every test · all 67 tests, in order

67 of 67 showing

Show
AIR-1.1 Can AI crawlers reach your site? PASS 5 pt
Why we test this

All 10 AI agents may fetch content paths.

Your robots.txt file tells crawlers what they may read. A line left behind by a previous site or a copied template can quietly shut out the assistants people now use to find you.

AIR-1.2 Does your CDN let AI crawlers through? PASS 5 pt
Why we test this

All 8 AI user-agents receive full content.

Even when robots.txt says yes, a firewall or bot-protection rule can turn assistants away before they reach your pages. We sent a request as each one and recorded what came back.

AIR-1.3 Is your page readable without a security challenge? PASS 1 pt
Why we test this

No interactive challenges on 32 sampled read-only pages.

A CAPTCHA or bot check on an ordinary page stops an assistant at the door. These belong on forms and logins, not on pages anyone can read.

AIR-1.4 Have you stated what AI may do with your content?No Content-Signal line in robots.txt. Missing: search, ai-input, ai-train. PROBLEM +3
What's wrong

No Content-Signal line in robots.txt. Missing: search, ai-input, ai-train.

There is now a machine-readable way to say whether AI may search, quote or train on your material. Having a position — any position — is the point.

AIR-1.5 Can a person read your AI policy?robots.txt carries a 89-character comment, too thin to read as a policy statement. NEEDS WORK +0
What's half-done

robots.txt carries a 89-character comment, too thin to read as a policy statement.

A few plain sentences in robots.txt saying what you permit. Journalists and lawyers read this file, and right now most sites say nothing.

AIR-1.6 Are you allowing assistants to quote you? PASS 1 pt
Why we test this

No noarchive, nosnippet or max-snippet:0 directives found.

Some sites carry old settings that tell search engines not to show excerpts. Those same settings stop an assistant quoting your page in an answer.

AIR-1.7 Does this page declare its real address?0% of sampled pages emit a valid, self-consistent canonical. 32 have problems. PROBLEM +2
What's wrong

0% of sampled pages emit a valid, self-consistent canonical. 32 have problems.

A canonical link tells a machine which URL is the true one. Without it the same content can be treated as several competing pages.

AIR-1.8 Is your page structured so a machine can follow it?9% of sampled pages carry one main element, a wrapping article or section, and a nav. 8 exceed 12 divs per semantic element. PROBLEM +1
What's wrong

9% of sampled pages carry one main element, a wrapping article or section, and a nav. 8 exceed 12 divs per semantic element.

Meaningful sections rather than an undifferentiated wall of containers. It is the difference between a document and a soup of boxes.

AIR-1.9 Do your headings tell a clear story?58% of sampled pages have exactly one non-empty h1 and no skipped heading levels. 1 have no h1; 5 have several; 7 skip a level. NEEDS WORK +1
What's half-done

58% of sampled pages have exactly one non-empty h1 and no skipped heading levels. 1 have no h1; 5 have several; 7 skip a level.

One main heading, then sub-headings in order. Assistants use headings to work out what a page is about and which part answers a question.

AIR-1.10 Do you publish a guide for AI assistants?/llms.txt returns HTTP 404. PROBLEM +2
What's wrong

/llms.txt returns HTTP 404.

A file at /llms.txt listing your most important pages. It is early and cheap, and it forces a useful conversation about what actually matters on your site.

AIR-1.11 Can a machine tell what your organization is?53 of 83 entity nodes carry an @id (64%). The WebPage to WebSite to Organization chain resolves. NEEDS WORK +1
What's half-done

53 of 83 entity nodes carry an @id (64%). The WebPage to WebSite to Organization chain resolves.

Structured data that links together — your organization, your site, this page — rather than a scattering of disconnected labels.

AIR-1.12 Can a machine be certain it is you?No sameAs links were found on Organization or Person nodes. PROBLEM +2
What's wrong

No sameAs links were found on Organization or Person nodes.

Links from your markup to authoritative records like Wikidata or ROR. Without one, an assistant is guessing which organization of your name it has found.

AIR-1.13 Can a machine find out who you are?0 of 7 organizational facts are present in the Organization markup: none. PROBLEM +2
What's wrong

0 of 7 organizational facts are present in the Organization markup: none.

Founding date, leadership, address, contact details, legal identifiers. Thin About pages are the most common weakness we see.

AIR-2.1 Primary content is present without JavaScript PASS 5 pt
Why we test this

Raw HTML contains 86% of rendered text on average across 32 URLs. The worst template is /operating-area/*: 48% across 3 pages.

AIR-2.2 Progressive disclosure content ships in the initial HTML0 of 30 pages ship every disclosure panel populated in the raw HTML. 5 pages load more content on scroll with no paginated fallback. PROBLEM +2
What's wrong

0 of 30 pages ship every disclosure panel populated in the raw HTML. 5 pages load more content on scroll with no paginated fallback.

AIR-2.3 Real data tables with header cells2 tables: 0 complete, 2 without scope on header cells, 0 with no header cells, 0 used for layout. NEEDS WORK +1
What's half-done

2 tables: 0 complete, 2 without scope on header cells, 0 with no header cells, 0 used for layout.

AIR-2.4 Stable, human-readable anchor IDs on section headings22 of 236 subheadings carry a slug-like id (9%); 10 have generated or unstable ids. PROBLEM +1
What's wrong

22 of 236 subheadings carry a slug-like id (9%); 10 have generated or unstable ids.

AIR-2.5 Alt text on content images, empty alt on decorative17 of 309 images carry appropriate alt text: 96 have no alt attribute, 0 use the filename. PROBLEM +1
What's wrong

17 of 309 images carry appropriate alt text: 96 have no alt attribute, 0 use the filename.

AIR-2.6 Key facts exist as HTML text, not only in images or PDFs13 of 32 sampled pages are thin relative to their images or lead with a document download. PROBLEM +1
What's wrong

13 of 32 sampled pages are thin relative to their images or lead with a document download.

AIR-3.1 JSON-LD is generated from mapped fields, not hardcoded5 of 5 templates repeat identical schema literals across pages whose visible content differs. PROBLEM +2
What's wrong

5 of 5 templates repeat identical schema literals across pages whose visible content differs.

AIR-3.2 BreadcrumbList on every page below the homepage PASS 2 pt
Why we test this

97% of pages below the homepage carry a BreadcrumbList with at least two steps.

AIR-3.3 Vertical-specific schema types NOT SCORED —
AIR-3.4 FAQPage and QAPage on genuine question-and-answer content NOT SCORED —
AIR-3.5 isAccessibleForFree, about, and mentions with entity references0 of 26 substantive pages declare isAccessibleForFree; 1 reference subject entities by identifier. NEEDS WORK +0
What's half-done

0 of 26 substantive pages declare isAccessibleForFree; 1 reference subject entities by identifier.

AIR-3.6 Product, Offer, and Service with real prices NOT SCORED —
AIR-3.7 SearchAction on the WebSite node PASS 1 pt
Why we test this

The SearchAction template returns 381 characters of results for a test term.

AIR-3.8 Schema validation of the structured data on the page PASS 2 pt
Why we test this

381 nodes across 30 pages parse, carry what their types require, and hold well-formed values.

AIR-4.1 RSL licensing document published and referenced NOT SCORED —
AIR-4.2 RSL terms propagated to feeds and schema NOT SCORED —
AIR-4.3 Web Bot Auth verification configured NOT SCORED —
AIR-4.4 Correct X-Robots-Tag on non-HTML resources0 of 25 non-HTML resources carry an X-Robots-Tag. PROBLEM +1
What's wrong

0 of 25 non-HTML resources carry an X-Robots-Tag.

AIR-4.5 Missing pages return 404 or 4100 of 10 deliberately invalid URLs returned HTTP 200; 3 sampled pages are thin enough to be not-found templates. NEEDS WORK +0
What's half-done

0 of 10 deliberately invalid URLs returned HTTP 200; 3 sampled pages are thin enough to be not-found templates.

AIR-4.6 Redirects resolve in a single hop PASS 1 pt
Why we test this

30 of 32 sampled URLs redirect.

AIR-4.7 Faceted, calendar, and parameterized URLs are controlled PASS 2 pt
Why we test this

No parameterized URLs appeared in the crawlable sample.

AIR-4.8 Sitemap lastmod reflects real content changes PASS 2 pt
Why we test this

1069 of 1069 sitemap URLs carry a lastmod across 520 distinct dates; 8% share 2019-11-12.

AIR-4.9 Sitemap index split by type, with media sitemapsAn index with 9 child sitemaps covering 1069 URLs, including media. PROBLEM +1
What's wrong

An index with 9 child sitemaps covering 1069 URLs, including media.

AIR-4.10 Paginated series are coherently signaled NOT SCORED —
AIR-5.1 Author entity pages with credentialsNo Person entities appear anywhere in the sample. PROBLEM +2
What's wrong

No Person entities appear anywhere in the sample.

AIR-5.2 Bylines linked to author entities0 of 22 substantive pages reference an author by @id; 0 carry a bare string; 22 are unsigned. PROBLEM +2
What's wrong

0 of 22 substantive pages reference an author by @id; 0 carry a bare string; 22 are unsigned.

AIR-5.3 reviewedBy on YMYL content NOT SCORED —
AIR-5.4 datePublished and dateModified are accurate PASS 2 pt
Why we test this

29 of 32 pages carry a publication or modification date across 25 distinct dateModified values.

AIR-5.5 citation markup on primary-source references NOT SCORED —
AIR-5.6 C2PA Content Credentials on original assets NOT SCORED —
AIR-6.1 OpenAPI specification for public APIs NOT SCORED —
AIR-6.2 /.well-known/ discovery entries for agent capabilities NOT SCORED —
AIR-6.3 Form fields carry label, name, and autocomplete12 of 75 form fields carry an accessible name, a meaningful name attribute and a valid autocomplete token where one applies. PROBLEM +1
What's wrong

12 of 75 form fields carry an accessible name, a meaningful name attribute and a valid autocomplete token where one applies.

AIR-6.4 No captchas on browse, search, or filter interactions PASS 2 pt
Why we test this

No search or filter surface in the sample returned a challenge.

AIR-7.1 Markdown companion for every canonical page0 of 23 sampled pages have a Markdown companion at {path}.md returning a Markdown content type. PROBLEM +2
What's wrong

0 of 23 sampled pages have a Markdown companion at {path}.md returning a Markdown content type.

AIR-7.2 link rel=alternate advertises the Markdown version NOT SCORED —
AIR-7.3 Accept: text/markdown content negotiation0 of 25 URLs serve Markdown for Accept: text/markdown. PROBLEM +2
What's wrong

0 of 25 URLs serve Markdown for Accept: text/markdown.

AIR-7.4 Alternate representations are edge-cached NOT SCORED —
LI-1 HowTo on procedural content NOT SCORED —
LI-2 speakable on summaries and ledesNo speakable specification found on any sampled page. NOT SCORED —
What's wrong

No speakable specification found on any sampled page.

LI-3 IndexNow fires on publish and updateNo IndexNow key file was discoverable. The file is named after the key, which is not published, so this is 'not discoverable' rather than proof of absence. NOT SCORED —
What's wrong

No IndexNow key file was discoverable. The file is named after the key, which is not published, so this is 'not discoverable' rather than proof of absence.

LI-4 Editorial policy page referenced via publishingPrinciples0 of 30 Organization nodes reference publishingPrinciples. NOT SCORED —
What's wrong

0 of 30 Organization nodes reference publishingPrinciples.

LI-5 NLWeb endpoint exposed as an MCP server with an ask methodNo NLWeb endpoint was discoverable. NOT SCORED —
What's wrong

No NLWeb endpoint was discoverable.

LI-6 Domain MCP server over real content APIsNo domain MCP server or tool descriptor was discoverable. NOT SCORED —
What's wrong

No domain MCP server or tool descriptor was discoverable.

LI-7 /llms-full.txt where full-text inclusion is appropriate NOT SCORED —
BP-1 Critical flows complete without JS-only interactions NOT SCORED —
BP-2 Stable selectors on critical-flow elements NOT SCORED —
BP-3 GA4 channel group for AI assistant referrersWhether a channel group exists for AI assistant referrers is not visible from outside. Analytics presence is; the grouping is not. NOT SCORED —
What we're measuring

Whether a channel group exists for AI assistant referrers is not visible from outside. Analytics presence is; the grouping is not.

BP-4 Server-side tagging captures stripped referrersReconciliation between server-side and client-side numbers has to be attested. NOT SCORED —
What we're measuring

Reconciliation between server-side and client-side numbers has to be attested.

BP-5 Access log retention with a queryable storeLog retention and queryability are not observable from outside the site. NOT SCORED —
What we're measuring

Log retention and queryability are not observable from outside the site.

BP-6 Scheduled AI crawler activity report NOT SCORED —
BP-7 Fixed prompt panel run monthly across modelsAnswer-share tracking happens outside the site and must be attested. NOT SCORED —
What we're measuring

Answer-share tracking happens outside the site and must be attested.

BP-8 Extraction-fidelity baseline capturedNo extraction-fidelity baseline is captured by this version of the scanner, which makes no live model calls. NOT SCORED —
What we're measuring

No extraction-fidelity baseline is captured by this version of the scanner, which makes no live model calls.

BP-9 Search Console and Bing Webmaster Tools verifiedGoogle Search Console verification found on the page. Whether sitemaps are submitted and alerts reach a person cannot be seen from outside. NOT SCORED —
What's half-done

Google Search Console verification found on the page. Whether sitemaps are submitted and alerts reach a person cannot be seen from outside.

Not applicable — 24 tests answered with a dash, excluded from the score: AIR-3.3, AIR-3.4, AIR-3.6, AIR-4.1, AIR-4.2, AIR-4.3, AIR-4.10, AIR-5.3, AIR-5.5, AIR-5.6, AIR-6.1, AIR-6.2, AIR-7.2, AIR-7.4, LI-1, LI-7, BP-1, BP-2, BP-3, BP-4, BP-5, BP-6, BP-7, BP-8.

By dimension

Where Williams Companies's 49 came from. Open a line to see its tests, worst first.

DimensionShare earnedEarnedScore
1 · Primary Indicators 15 50
Scored zero — 6 problems
AIR-1.4 Have you stated what AI may do with your content?No Content-Signal line in robots.txt. Missing: search, ai-input, ai-train. PROBLEM
What's wrong

No Content-Signal line in robots.txt. Missing: search, ai-input, ai-train.

There is now a machine-readable way to say whether AI may search, quote or train on your material. Having a position — any position — is the point.

AIR-1.7 Does this page declare its real address?0% of sampled pages emit a valid, self-consistent canonical. 32 have problems. PROBLEM
What's wrong

0% of sampled pages emit a valid, self-consistent canonical. 32 have problems.

A canonical link tells a machine which URL is the true one. Without it the same content can be treated as several competing pages.

AIR-1.8 Is your page structured so a machine can follow it?9% of sampled pages carry one main element, a wrapping article or section, and a nav. 8 exceed 12 divs per semantic element. PROBLEM
What's wrong

9% of sampled pages carry one main element, a wrapping article or section, and a nav. 8 exceed 12 divs per semantic element.

Meaningful sections rather than an undifferentiated wall of containers. It is the difference between a document and a soup of boxes.

AIR-1.10 Do you publish a guide for AI assistants?/llms.txt returns HTTP 404. PROBLEM
What's wrong

/llms.txt returns HTTP 404.

A file at /llms.txt listing your most important pages. It is early and cheap, and it forces a useful conversation about what actually matters on your site.

AIR-1.12 Can a machine be certain it is you?No sameAs links were found on Organization or Person nodes. PROBLEM
What's wrong

No sameAs links were found on Organization or Person nodes.

Links from your markup to authoritative records like Wikidata or ROR. Without one, an assistant is guessing which organization of your name it has found.

AIR-1.13 Can a machine find out who you are?0 of 7 organizational facts are present in the Organization markup: none. PROBLEM
What's wrong

0 of 7 organizational facts are present in the Organization markup: none.

Founding date, leadership, address, contact details, legal identifiers. Thin About pages are the most common weakness we see.

Partly scored — 3 need work
AIR-1.5 Can a person read your AI policy?robots.txt carries a 89-character comment, too thin to read as a policy statement. NEEDS WORK
What's half-done

robots.txt carries a 89-character comment, too thin to read as a policy statement.

A few plain sentences in robots.txt saying what you permit. Journalists and lawyers read this file, and right now most sites say nothing.

AIR-1.9 Do your headings tell a clear story?58% of sampled pages have exactly one non-empty h1 and no skipped heading levels. 1 have no h1; 5 have several; 7 skip a level. NEEDS WORK
What's half-done

58% of sampled pages have exactly one non-empty h1 and no skipped heading levels. 1 have no h1; 5 have several; 7 skip a level.

One main heading, then sub-headings in order. Assistants use headings to work out what a page is about and which part answers a question.

AIR-1.11 Can a machine tell what your organization is?53 of 83 entity nodes carry an @id (64%). The WebPage to WebSite to Organization chain resolves. NEEDS WORK
What's half-done

53 of 83 entity nodes carry an @id (64%). The WebPage to WebSite to Organization chain resolves.

Structured data that links together — your organization, your site, this page — rather than a scattering of disconnected labels.

Full marks — 4 pass
AIR-1.1 Can AI crawlers reach your site? PASS
Why we test this

All 10 AI agents may fetch content paths.

Your robots.txt file tells crawlers what they may read. A line left behind by a previous site or a copied template can quietly shut out the assistants people now use to find you.

AIR-1.2 Does your CDN let AI crawlers through? PASS
Why we test this

All 8 AI user-agents receive full content.

Even when robots.txt says yes, a firewall or bot-protection rule can turn assistants away before they reach your pages. We sent a request as each one and recorded what came back.

AIR-1.3 Is your page readable without a security challenge? PASS
Why we test this

No interactive challenges on 32 sampled read-only pages.

A CAPTCHA or bot check on an ordinary page stops an assistant at the door. These belong on forms and logins, not on pages anyone can read.

AIR-1.6 Are you allowing assistants to quote you? PASS
Why we test this

No noarchive, nosnippet or max-snippet:0 directives found.

Some sites carry old settings that tell search engines not to show excerpts. Those same settings stop an assistant quoting your page in an answer.

2 · Rendering and Extraction 7 47
Scored zero — 4 problems
AIR-2.2 Progressive disclosure content ships in the initial HTML0 of 30 pages ship every disclosure panel populated in the raw HTML. 5 pages load more content on scroll with no paginated fallback. PROBLEM
What's wrong

0 of 30 pages ship every disclosure panel populated in the raw HTML. 5 pages load more content on scroll with no paginated fallback.

AIR-2.4 Stable, human-readable anchor IDs on section headings22 of 236 subheadings carry a slug-like id (9%); 10 have generated or unstable ids. PROBLEM
What's wrong

22 of 236 subheadings carry a slug-like id (9%); 10 have generated or unstable ids.

AIR-2.5 Alt text on content images, empty alt on decorative17 of 309 images carry appropriate alt text: 96 have no alt attribute, 0 use the filename. PROBLEM
What's wrong

17 of 309 images carry appropriate alt text: 96 have no alt attribute, 0 use the filename.

AIR-2.6 Key facts exist as HTML text, not only in images or PDFs13 of 32 sampled pages are thin relative to their images or lead with a document download. PROBLEM
What's wrong

13 of 32 sampled pages are thin relative to their images or lead with a document download.

Partly scored — 1 needs work
AIR-2.3 Real data tables with header cells2 tables: 0 complete, 2 without scope on header cells, 0 with no header cells, 0 used for layout. NEEDS WORK
What's half-done

2 tables: 0 complete, 2 without scope on header cells, 0 with no header cells, 0 used for layout.

Full marks — 1 pass
AIR-2.1 Primary content is present without JavaScript PASS
Why we test this

Raw HTML contains 86% of rendered text on average across 32 URLs. The worst template is /operating-area/*: 48% across 3 pages.

3 · Structured Data and the Entity Graph 6 40
Scored zero — 1 problem
AIR-3.1 JSON-LD is generated from mapped fields, not hardcoded5 of 5 templates repeat identical schema literals across pages whose visible content differs. PROBLEM
What's wrong

5 of 5 templates repeat identical schema literals across pages whose visible content differs.

Partly scored — 1 needs work
AIR-3.5 isAccessibleForFree, about, and mentions with entity references0 of 26 substantive pages declare isAccessibleForFree; 1 reference subject entities by identifier. NEEDS WORK
What's half-done

0 of 26 substantive pages declare isAccessibleForFree; 1 reference subject entities by identifier.

Full marks — 3 pass
AIR-3.2 BreadcrumbList on every page below the homepage PASS
Why we test this

97% of pages below the homepage carry a BreadcrumbList with at least two steps.

AIR-3.7 SearchAction on the WebSite node PASS
Why we test this

The SearchAction template returns 381 characters of results for a test term.

AIR-3.8 Schema validation of the structured data on the page PASS
Why we test this

381 nodes across 30 pages parse, carry what their types require, and hold well-formed values.

4 · Crawl, Index and Licensing Hygiene 5 42
Scored zero — 2 problems
AIR-4.4 Correct X-Robots-Tag on non-HTML resources0 of 25 non-HTML resources carry an X-Robots-Tag. PROBLEM
What's wrong

0 of 25 non-HTML resources carry an X-Robots-Tag.

AIR-4.9 Sitemap index split by type, with media sitemapsAn index with 9 child sitemaps covering 1069 URLs, including media. PROBLEM
What's wrong

An index with 9 child sitemaps covering 1069 URLs, including media.

Partly scored — 1 needs work
AIR-4.5 Missing pages return 404 or 4100 of 10 deliberately invalid URLs returned HTTP 200; 3 sampled pages are thin enough to be not-found templates. NEEDS WORK
What's half-done

0 of 10 deliberately invalid URLs returned HTTP 200; 3 sampled pages are thin enough to be not-found templates.

Full marks — 3 pass
AIR-4.6 Redirects resolve in a single hop PASS
Why we test this

30 of 32 sampled URLs redirect.

AIR-4.7 Faceted, calendar, and parameterized URLs are controlled PASS
Why we test this

No parameterized URLs appeared in the crawlable sample.

AIR-4.8 Sitemap lastmod reflects real content changes PASS
Why we test this

1069 of 1069 sitemap URLs carry a lastmod across 520 distinct dates; 8% share 2019-11-12.

5 · Authorship, Provenance, Freshness 2 17
Scored zero — 2 problems
AIR-5.1 Author entity pages with credentialsNo Person entities appear anywhere in the sample. PROBLEM
What's wrong

No Person entities appear anywhere in the sample.

AIR-5.2 Bylines linked to author entities0 of 22 substantive pages reference an author by @id; 0 carry a bare string; 22 are unsigned. PROBLEM
What's wrong

0 of 22 substantive pages reference an author by @id; 0 carry a bare string; 22 are unsigned.

Full marks — 1 pass
AIR-5.4 datePublished and dateModified are accurate PASS
Why we test this

29 of 32 pages carry a publication or modification date across 25 distinct dateModified values.

6 · Agent Interfaces 3 38
Scored zero — 1 problem
AIR-6.3 Form fields carry label, name, and autocomplete12 of 75 form fields carry an accessible name, a meaningful name attribute and a valid autocomplete token where one applies. PROBLEM
What's wrong

12 of 75 form fields carry an accessible name, a meaningful name attribute and a valid autocomplete token where one applies.

Full marks — 1 pass
AIR-6.4 No captchas on browse, search, or filter interactions PASS
Why we test this

No search or filter surface in the sample returned a challenge.

7 · Alternate Representations 0 0
Scored zero — 2 problems
AIR-7.1 Markdown companion for every canonical page0 of 23 sampled pages have a Markdown companion at {path}.md returning a Markdown content type. PROBLEM
What's wrong

0 of 23 sampled pages have a Markdown companion at {path}.md returning a Markdown content type.

AIR-7.3 Accept: text/markdown content negotiation0 of 25 URLs serve Markdown for Accept: text/markdown. PROBLEM
What's wrong

0 of 25 URLs serve Markdown for Accept: text/markdown.

What was read

32 pages, sampled from this site's own sitemap and internal links. The cap is 32 — a ceiling, not a certainty: a site with fewer reachable pages yields fewer.

403 https://investor.williams.com/ Answered 403.
403 https://investor.williams.com/ir-resources/faqs Answered 403.
30 other pages, all 200, by template
1× / https://williams.com/
1× /careers https://www.williams.com/careers
3× /careers/* https://www.williams.com/careers/total-rewards
1× /contact https://www.williams.com/contact
1× /our-company https://www.williams.com/our-company
1× /leadership https://www.williams.com/leadership
5× /our-company/* https://www.williams.com/our-company/corporate-governance
1× /sequent https://www.williams.com/sequent
3× /operating-area/* https://www.williams.com/operating-area/transmission-and-gulf-of-mexico
1× /community/* https://www.williams.com/community/safety
2× /community/safety/* https://www.williams.com/community/safety/public-awareness
1× /community/safety/public-awareness/* https://www.williams.com/community/safety/public-awareness/public-awareness-resources
3× /expansion-project/* https://www.williams.com/expansion-project/southeast-supply-enhancement
1× /power-innovation https://www.williams.com/power-innovation
4× /sustainability/* https://www.williams.com/sustainability/corporate-venture-capital
1× /sustainability https://www.williams.com/sustainability

The receipt

Cohort
sp500
Source
List of S&P 500 companies (Wikipedia contributors, 2026-09-08)
Index
11.0, in effect 2026-09-24
Scanner
0.1.0
Scanned
2026-09-20T05:22:44.713495+00:00
Result hash
50dfc59d61a1485e34c256f3109c0383dbc8ce11b6b1b707adaa4510c8b440a8
Basis
public-interest census: a declared bot with a published policy at https://readinessindex.io/bot, honoring robots.txt addressed to AIRBot, reading public pages only. No per-site permission was sought or given.

The hash is the SHA-256 of the full result.json, recorded when the scan finished rather than computed now. The raw evidence behind every line above — every response, cached — is retained and is a median 1.5 MB per site, so it is not served from here. Ask us for it if you want to check a number against the bytes it came from.

Think this is wrong? It might be. Tell us at hello@readinessindex.io and we will look, correct it if it is, and say so publicly either way.

Is your site ready for AI?

Scan a page, get a number you can verify. Free.

About these numbers. Points are whole numbers everywhere on this page. The arithmetic behind them is not — a test scores its weight times its band divided by four, so a row can earn 1.5 points and print as 2. Scores are computed from the exact figures and rounded once, at the end, never from the rounded rows. That means adding the points column up will not give you the score exactly. The rule is published in the standard.