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Quest Diagnostics

questdiagnostics.com · Healthcare · DGX

Ranked 1,135 of 2,047 companies in the study

31Overall score
  • Visibility13
  • Citations1
  • Sentiment50
  • Site quality87
  • AI readiness21
What this means for Quest Diagnostics

AI assistants name Quest Diagnostics in 6.7% of answers, which is about twice as often as the typical company in its sector. Quest Diagnostics has an overall score of 31 out of 100, ranking 1,135th of 2,047 companies. Its website passes 3 out of 14 technical checks for AI tool readiness.

We asked 15 unbranded questions about the healthcare market: none named Quest Diagnostics. AI assistants named it in 4 of 60 answers (6.7%). The typical healthcare company is named in 3.3% of answers. By how often it is named, Quest Diagnostics ranks 40 of 105 in its sector.

Named by AI in
6.7%
4 of 60 answers
Share of mentions
23.5%
compared with 5 rivals
AI readiness
3/14
technical checks passed. Typical for its sector: 3
Rank in its sector
47 of 105
by overall score, where the typical healthcare company scores 31
How Quest Diagnostics compares with all 2,047 companies

Every dot is a company in the study. Hover one to see it; click to open its report.

This companySame sectorEvery other companyNever named

What makes up the score

Five parts, each scored out of 100.

Visibility
13

How often AI assistants name the company

Citations
1

How often AI uses the company's own website as a source

Sentiment
50

How positively AI describes the company

Site quality
87

How well built the website's own pages are

AI readiness
21

How easily AI tools can read and use the website

Visibility is calculated from the answers on this page. How the score is built.

Compared with healthcare

105 companies in this sector. The line on each bar is the typical company.

Overall score31
Ranks 47 of 105. Typical company: 31
Named in answers7%
Ranks 40 of 105. Typical company: 3%
AI readiness21
Ranks 53 of 105. Typical company: 21
What Gemini actually said

An answer that names the company

“How can you check the status of your laboratory test results if you haven’t received them in a week?”

If you haven't received your laboratory test results within a week, there are several ways you can check their status:

1. Online Patient Portals:

Many laboratories and healthcare providers offer online patient portals where you can access your test results. These portals often require you to create an account with a username and password.

MyQuest: If your tests were performed by Quest Diagnostics or a partner lab like Diagnostic Laboratory of Oklahoma (DLO), you can access your results through the MyQuest patient portal. MyQuest is a free and secure tool that allows you to …

The AI’s answer as we received it, shortened and not checked for accuracy.

Also named
Labcorp2
Share of mentions

How the mentions in these answers were split between this company and its rivals

Labcorp
50.0%
Quest Diagnostics
33.3%
Mayo Clinic Laboratories
16.7%
BioReference Laboratories
0.0%
Sonic Healthcare USA
0.0%
ARUP Laboratories
0.0%
Which AI assistants named the company

Answers naming it, out of answers received

Gemini
3/15
Claude
1/15
OpenAI
0/15
Perplexity
0/15
Ready for AI agents

What this website publishes for an AI agent to read, use and buy from, on a scale of six levels.

  1. 0
  2. 1
  3. 2
  4. 3
  5. 4
  6. 5

Level 1: Basic web presence. Two of robots.txt, a sitemap and Link headers are in place.

To reach level 2:
  • Content Signals
Show every check, for your technical team
Discoverability
77 of 100
  • robots.txtPassed

    A valid robots.txt with crawl rules at the site root.

    study: 92.0%
  • SitemapPassed

    An XML sitemap listing the pages, ideally referenced from robots.txt.

    study: 86.8%
  • Link headersNot met

    Send Link headers such as rel="api-catalog" or rel="describedby" on the homepage.

    study: 0.3%
  • DNS for AI DiscoveryNot present

    Advertise agent endpoints with SVCB records under _agents.

    study: 5.5%
Content accessibility
0 of 100
  • Markdown negotiationNot met

    Return a markdown version when asked with Accept: text/markdown, for example at the CDN.

    study: 1.9%
  • llms.txtNot met

    Publish an llms.txt with a short summary and the key links.

    study: 25.1%
Bot access control
32 of 100
  • AI bot rulesPartly met

    Add explicit robots.txt groups for the main AI crawlers.

    study: 93.4%
  • Content SignalsNot met

    Add a Content-Signal line for search, ai-input and ai-train to robots.txt.

    study: 1.4%
  • Web Bot AuthNot present

    Only relevant if you run your own agents or crawlers: publish a signing key directory.

    study: 0.2%
APIs, auth and MCP
0 of 100
  • API CatalogNot met

    List public APIs in a linkset at /.well-known/api-catalog.

    study: 0.3%
  • OAuth discoveryNot met

    Publish OpenID Connect or OAuth server metadata under /.well-known.

    study: 11.8%
  • OAuth Protected ResourceNot met

    Serve protected resource metadata at /.well-known/oauth-protected-resource.

    study: 10.3%
  • auth.mdNot met

    Publish an auth.md describing how agents sign in.

    study: 0.0%
  • MCP Server CardNot met

    Offer an MCP server and publish its server card under /.well-known.

    study: 0.2%
  • A2A Agent CardNot met

    Publish an agent card at /.well-known/agent-card.json.

    study: 0.1%
  • Agent SkillsNot met

    Publish a skills index with the main tasks agents can do.

    study: 0.2%
  • WebMCPCould not check

    Register key actions such as search or cart as WebMCP tools.

    study: 33.7%
  • ARD manifestNot met

    Publish an ai-catalog.json listing every agent interface.

    study: 0.1%

Score 25 of 100 · 97% of checks could run · checked on October 5, 2026 · www.questdiagnostics.com · 2,047 companies scanned

See how every company did, and how this was measured.

The checks behind the AI readiness score

3 of 14 passed. This list is for your technical team. The percentage is how many companies in the study pass each check.

These 14 checks ran during the audit and are what the AI readiness part of the overall score counts. The scan above ran later and is stricter on Link headers and Markdown, so a check can pass here and not there.

Show the 14 checks
Discoverability
  • Passedrobots.txt publishedstudy: 85.0%
  • PassedXML sitemapstudy: 73.2%
  • Not metHTTP Link headers (RFC 8288)study: 29.0%
Content Accessibility
  • Not metMarkdown content negotiationstudy: 8.3%
  • Not metllms.txt publishedstudy: 21.7%
  • PassedToken budget (page weight)study: 95.2%
Bot Access Control
  • Not metExplicit AI bot rulesstudy: 13.0%
API / Auth / MCP
  • Not metAPI Catalog (.well-known/api-catalog)study: 0.2%
  • Not metOAuth Authorization Server discoverystudy: 10.1%
  • Not metOAuth Protected Resource discoverystudy: 9.3%
  • Not metMCP Server Cardstudy: 0.0%
  • Not metA2A Agent Cardstudy: 0.0%
  • Not metWebMCP toolsstudy: 4.2%
  • Not metAgent Skills declaredstudy: 0.0%
What AI crawlers may read (robots.txt)

This website sets no rules for any AI crawler by name, like 84% of the websites whose rules we could read. Every AI crawler follows its general rules.

Training AI
  • GPTBotallowed
  • ClaudeBotallowed
  • Anthropic-AIallowed
  • Google-Extendedallowed
  • Applebot-Extendedallowed
  • Meta-ExternalAgentallowed
  • FacebookBotallowed
  • Bytespiderallowed
  • CCBotallowed
  • Diffbotallowed
  • Omgilibotallowed
AI search
  • OAI-SearchBotallowed
  • Claude-SearchBotallowed
  • PerplexityBotallowed
  • Applebotallowed
  • Amazonbotallowed
  • YouBotallowed
Answering questions
  • ChatGPT-Userallowed
  • Claude-Userallowed
  • Perplexity-Userallowed
  • DuckAssistBotallowed
  • MistralAI-Userallowed

Read from the website’s own rules file (robots.txt). An asterisk marks a crawler the file names. The rest follow its general rules. “Partly” means only some pages are blocked.

Websites the AI used as sources

How many times each website was listed as a source in these answers

medlineplus.gov
16
pmc.ncbi.nlm.nih.gov
15
my.clevelandclinic.org
14
justdial.com
13
mayoclinic.org
10
labcorp.com
10
heart.org
9
testing.com
8
cdc.gov
8
ncbi.nlm.nih.gov
7

In the study as S&P 500.

Every question, and where the company came up (3 of 15)
QuestionOpenAIClaudePerplexityGemini
  • How can you check the status of your laboratory test results if you haven’t received them in a week?
  • What options exist for rapid health screenings outside of full-service laboratory testing environments?
  • Which diagnostic tests are recommended for people with a family history of heart disease?
  • Which laboratory tests are best for monitoring cholesterol and heart health in adults?
  • How much do basic blood tests usually cost out-of-pocket in the US?
  • Which diagnostic tests are most helpful for individuals managing diabetes?
  • What are the most common diagnostic lab tests recommended for routine health screenings?
  • What are good alternatives to traditional lab testing if you’re unable to visit a facility in person?
  • What should you do if your lab test results come back as ‘inconclusive’ or require retesting?
  • Are comprehensive wellness panels from diagnostic labs worth the cost for preventive care?
  • Blood tests vs. urine tests: which is better for detecting early signs of illness?
  • Is it necessary to get annual lab tests if you don’t have any current symptoms?
  • How do at-home lab tests compare to in-person diagnostic laboratory services for accuracy and reliability?
  • Are laboratory screenings for flu or COVID-19 typically covered by insurance?
  • What health screenings do employers typically request from laboratory service providers for new hires?
named the companyanswered without naming itdid not answer

Columns, left to right: OpenAI, Claude, Perplexity, Gemini. The AI assistants often disagree. Across the study, on 40% of the questions where a company is named, only one of the four names it.

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Overall score 31 of 100 badge for Quest Diagnostics

A badge of this result that you can show on your own website. Copy the code below.

<a href="https://aeo-audit.rezolve.com/us/questdiagnostics.com"><img src="https://aeo-audit.rezolve.com/us/badges/questdiagnostics.com.svg" alt="Overall score 31 of 100, US AI Visibility Study 2026" width="280" height="64"></a>
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