Scan a site

KAYAK

kayak.com

Scanned Fresh928 checks

82OF 100
How it adds up →
In its own wordsLooks like: Company or service siteSearch Flights, Hotels & Rental Cars | KAYAKKAYAK searches hundreds of other travel sites at once to find the information you need to make the right decisions on flights, hotels & rental cars.
PopularityTop 10KBuilt withVarnish, Affirm27 technologies foundTrust signals4 of 8 foundDomain registered 31 years agoBuilt with AI? None foundNo traces found

KAYAK (kayak.com) looks like a company or service site, is ranked in the top 10,000 sites and was registered in 1995. It is built with Varnish and Affirm; we found no traces of an AI site builder.

Popularity

Website Traffic Checker

Among the top 10K sites.

A popularity band, not a visit count.

Tranco: #4,576 · Chrome UX Report: Top 10,000 · Majestic Million: #2,855

Each list, with its date
SourceSaysAs of
TrancoA research ranking that combines several traffic and link sources, published daily.#4,576list of 7 Oct 2026
Chrome UX ReportRank buckets from Google’s real Chrome traffic, published monthly.Top 10,000Aug 2026
Majestic MillionRanks sites by how many separate networks link to them (links, not visits), published daily. CC BY 3.0#2,855list of 8 Oct 2026

Technology

Tech Stack Checker

Built with Varnish and Affirm.

  • VarnishWeb serverShow evidenceHide evidence
    Evidence · response header
    via: 1.1 varnish
    Popular sites using Varnish Is this wrong? Report it
  • AffirmPaymentsShow evidenceHide evidence
    Evidence · page source, line 363
    …":"","124c6ac6gfk1x":"https:\u002F\u002Fcdn1.affirm.com\u002Fjs\u002Fv2\u002Faffirm.js","1tw7pd…
    Popular sites using Affirm Is this wrong? Report it
Everything else it uses (25)

Around it: CDN, Email, SEO, Support and more.

Business tools can stay listed after a site stops using them.

Trust signals

Website Trust Checker

4 of 8 trust signals found on the home page.

Signals, not a judgement: missing details are common on small, honest sites.

  • Domain registered13 Apr 1995, 31 years agoNoted
  • HTTPSLoads over HTTPS with a valid certificateFound
  • Contact detailsEmail on the home pagePartly
    Show evidenceHide evidence
    Exhibit 1 · page source, line 363Masked for privacy. An email address or phone number can belong to a person, and data protection law, such as the EU’s GDPR, asks us to keep only what we need: that the page lists one, and where.
    Simply forward your booking confirmations to t•••@kayak.com or use the KAYAK app and sync your email account
    Is this wrong? Report it
  • Privacy policyLinked from the home page, and the page opensFound
  • TermsLinked from the home page, and the page opensFound
  • Security filterNot blocked by Cloudflare’s security filter and Quad9’s security filterNoted
Every signal we looked at

On the site

  • Contact pageNo link found on the home pageNot found
  • About pageLinked from the home page, and the page opensFound
  • Privacy policyLinked from the home page, and the page opensFound
  • TermsLinked from the home page, and the page opensFound
  • Refund or returns policyNo link found on the home pageNot found
  • Contact detailsEmail on the home pagePartly
    Show evidenceHide evidence
    Exhibit 1 · page source, line 363Masked for privacy. An email address or phone number can belong to a person, and data protection law, such as the EU’s GDPR, asks us to keep only what we need: that the page lists one, and where.
    Simply forward your booking confirmations to t•••@kayak.com or use the KAYAK app and sync your email account
    Is this wrong? Report it
  • Company detailsName: KayakPartly
  • Payment providersAffirmFound
  • TrackersNone found on the home pageNoted

Behind the site

  • Security filterNot blocked by Cloudflare’s security filter and Quad9’s security filterNotedCloudflare’s security filter and Quad9’s security filter
  • Domain registered13 Apr 1995, 31 years agoNoteddomain registry
  • HTTPSLoads over HTTPS with a valid certificateFound
  • Protective settings4 of 6 in placeFound
  • Email protectionProtected against forged emailFoundDNS records

A second opinion on its security setup: Mozilla’s HTTP Observatory grades the site when you open it. Ten checks before you buy · A signal looks wrong? Report it

What it is

Website Summary

Looks like: Company or service site.

In its own wordsSearch Flights, Hotels & Rental Cars | KAYAKKAYAK searches hundreds of other travel sites at once to find the information you need to make the right decisions on flights, hotels & rental cars.

Our reading of the page, medium confidence.

Show evidenceHide evidence
Exhibit 1 · Wikidata
Q6380402: kayak.com, business
Is this wrong? Report it

Who is behind it

  • structured dataKayak
  • copyright lineKAYAK
  • Wikidatakayak.com

Confirmed by 3 independent sources: structured data, copyright line and Wikidata.

Wikidata: Part of Booking Holdings; based in Stamford, United States; founded by Paul M. English.

Its Facebook and X accounts are the ones Wikidata lists.

Show evidence (3)Hide evidence
Exhibit 1 · page source, line 363
"name": "Kayak"
Exhibit 2 · page source, line 363
©2026 KAYAK
Exhibit 3 · Wikidata
Q6380402: kayak.com
Is this wrong? Report it

Each name is quoted from its source. A brand and the company that owns it often go by different names.

More about it: Wikidata, profiles, AI use, page facts

In Wikidata

  • kayak.com: fare aggregator and travel metasearch engine · travel website, business · since 2004

Wikidata, the free knowledge base behind Wikipedia, lists this domain as the official website of this item. Volunteers write it; each item shows its sources.

Its summary for AI assistantsKAYAK is a free travel metasearch engine. It searches hundreds of travel sites at once so travelers can compare and find the lowest available prices on flights, hotels, rental cars, and packages, with extensive filters to narrow results fast. KAYAK consistently deliver low prices and offer an extensive filtering system to cover niched and specific needsRead it in full

Find them on

The profiles its home page links. We haven’t checked who runs them.

AI use

  • AI training: doesn’t ask AI training crawlers to stay away.
  • AI assistants: may read it for the people who ask them.

What its robots.txt and robots tags ask of AI crawlers. Each crawler chooses whether to follow it.

Site name
KAYAK
Language
English (en-us)
What it tells search engines
Website, Organization, FAQPage, Question

Named in its structured data

  • OrganizationKayak

Read from what the page says about itself; we haven’t checked whether it’s true.

Built with AI?

AI Website Detector

No AI builder traces found.

Coding tools such as Cursor leave no traces, so this doesn’t mean a person made it.

AI traces: None found

How we know

AI site builders leave traces in the sites they make. We look for the traces of 53 of them and show every match with the line it came from, so you can check it yourself.

We test this on 2,312 sites whose makers we know, and publish what we get wrong.

How we test it · Every builder we know · How to tell if a site was built with AI

Score breakdown

Site Score

82 of 100: strong trust signals.

How established and checkable it is; AI traces carry no weight.

82OF 100
TransparencyContact, policies and about page14 / 30
Track recordHow long the domain has existed25 / 25
PopularityIts place in public rankings20 / 20
Security and setupHTTPS and standard protections13 / 15
ConsistencyName, description and what it tells search engines10 / 10
Why each part scored what it did
TransparencyContact, policies and about page14 / 30no contact page link · email and phone not both given · privacy policy linked · terms linked · takes payments without a refund policy link · about page linked
Track recordHow long the domain has existed25 / 25domain registered 31 years ago
PopularityIts place in public rankings20 / 20Top 10K in a popularity list
Security and setupHTTPS and standard protections13 / 15loads over HTTPS · sends visitors to HTTPS · doesn’t insist on HTTPS · protective settings
ConsistencyName, description and what it tells search engines10 / 10site name matches the domain · describes itself · tells search engines what it is

A high score isn’t a promise that a business is honest. How the score works.

Domain history

Domain History

Registered in 1995.

  1. Domain registeredRDAP
  2. This scanCheckAnySite

The web archive couldn’t be reached; we’ll ask it again. Why can this be empty?

Changes, earlier scans and alerts
Since our previous scan
This is our first scan of the site.

How we scanned it

Only from what anyone can see: the site’s public pages and public records.

  • Politely. Our scanner, CheckAnySiteBot, says who it is and follows the site’s robots.txt.
  • With sources. Every fact above says where it came from and when.
  • Without guessing. When we couldn’t check something, we say so.
This scan, in numbers

928 checks on 14 Oct 2026, with version 0.5.0 of our checks and version 1.1 of the score.

How we work · What each version changed · About our scanner

Quick look

Built with AI?

None foundWe found no AI builder traces.

“None found” never means “made by a person”: coding assistants leave no traces.

All the evidence →

Related

Quick look

How popular is it?

Top 10KBy the best of 3 public lists.

  • Tranco#4,576list of 7 Oct 2026
  • Chrome UX ReportTop 10,000Aug 2026
  • Majestic Million#2,855list of 8 Oct 2026

A popularity band, never a visit count.

The popularity section →

Related

Quick look

What is it built with?

Web server
Varnish
Payments
Affirm

And 25 more around it (CDN, Email, SEO, Support), in the section.

Each with its evidence →

Related

Quick look

Which trust signals does it show?

On the site

  • Contact pageNot found
  • About pageFound
  • Privacy policyFound
  • TermsFound
  • Refund or returns policyNot found
  • Contact detailsPartly
  • Company detailsPartly
  • Payment providersFound
  • TrackersNoted

Behind the site

  • Security filterNoted
  • Domain registeredNoted
  • HTTPSFound
  • Security headersFound
  • Software versionsNoted
  • NetworkNoted
  • Email setupFound
  • First certificateCouldn’t check
  • DNSSECNot found
  • Certificate authoritiesFound
  • Security contactFound

Signals, not a judgement: missing details are common on small, honest sites.

Every signal with its source →

Related

How has it changed? →
Quick look

How does it add up?

82OF 100

Strong trust signals. An open formula (v1.1): every point comes from a finding above. AI traces carry no weight.

TransparencyContact, policies and about page14 / 30
Track recordHow long the domain has existed25 / 25
PopularityIts place in public rankings20 / 20
Security and setupHTTPS and standard protections13 / 15
ConsistencyName, description and what it tells search engines10 / 10
Why each part scored what it did →

Related

Questions about kayak.com

What is kayak.com?

KAYAK describes itself: “KAYAK searches hundreds of other travel sites at once to find the information you need to make the right decisions on flights, hotels & rental cars.” It looks like a company or service site. See the evidence

How old is kayak.com?

Its domain was registered on 13 Apr 1995, 31 years ago. See the evidence

What is kayak.com built with?

It is built with Varnish and Affirm; we found 27 technologies in all. See the evidence

How popular is kayak.com?

It is among the top 10,000 sites, by Tranco, Chrome UX Report and Majestic Million. See the evidence

Was kayak.com made with AI?

We found no traces of an AI site builder. That doesn’t prove a person built it: AI coding assistants leave no traces. See the evidence

Who is behind kayak.com?

Kayak, named by its structured data, its copyright line and Wikidata. See the evidence

More sites like this: company or service site

Automated findings from the site’s public home page and public records, as of 14 Oct 2026. They describe what we found, not the people or business behind the site, and they may be incomplete or out of date. This is information, not advice. Terms · Report an error

What this scan can’t tell you
  • Whether the business is real, honest or delivers what it sells.
  • Whether a site was made with AI when no traces were left: coding assistants and hand edits leave none.
  • How many people visit: we show popularity bands from public lists, not visits.
  • Anything beyond the home page as it was at the time of the scan.

Is this your site? Ask for a correction.

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The result describes what we found on 14 Oct 2026, with evidence.

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One scan answers everything: AI traces, popularity, technology, trust signals, how the site describes itself, a score and its history. A quick check only decides which answer comes first. We read public pages as CheckAnySiteBot and follow robots.txt.