Website reputation report

kayak.es

Last checked 55 minutes ago · Point-in-time assessment

66/100Technical Safety ScoreIndependent technical assessment, not a visitor rating
● Evidence is limited

What is this website?

En KAYAK, el sistema de comparación nacido en Sídney (Australia), no solo estamos convencidos de ser la interfaz de comparación de precios de hoteles más fácil de usar, sino que también ayudamos a nuestros usuarios a elegir el mejor hotel tanto con la ayuda de las clasificaciones y comentarios de otros huéspedes como con las descripciones y fotos de los hoteles.

No listed local patterns observedHomepage-only analysis is not a malware clearance. Read the scope and findings below.

66/100Safety Score
65%Evidence Confidence
Trust Radar evidence profile Eight evidence dimensions from zero to one hundred. Exact values surround the chart. Threat Intelligence55 Domain History0 Infrastructure95 Website Security95 Security Hygiene70 Transparency64 Reputation50 Operational Stability83
Trust RadarEight observed factors. Select one to inspect its evidence.

How to read this report

Safety Score evaluates observed signals. Evidence Confidence measures how complete, direct, fresh, and consistent those signals are.

No automated scan can guarantee that a website is safe.

Current report context

What changed since the last scan

  • No earlier report to compare
What this scan could verify · 5 observed, 1 unavailable
DNS observed
Registration lookup unavailable Reason: stage unavailable
Network observed
TLS observed
Website response observed
Website content observed

Unavailable and unperformed checks are not clean results. The detailed evidence below remains the source for each conclusion.

Report an inaccuracy in this report →

Independent evidence brief

What we observed about kayak.es

Updated Oct 18, 2026

The latest scan examined 10 public pages on kayak.es. Website descriptions below come from the site itself. Registration, connection and threat findings were checked separately.

Purpose and visible content

On its About page, the site says: En KAYAK, el sistema de comparación nacido en Sídney (Australia), no solo estamos convencidos de ser la interfaz de comparación de precios de hoteles…

Registrar and domain history

A reliable creation date was not returned by the registration lookup. The report leaves domain age unverified rather than guessing.

Connection and hosting evidence

The checked homepage returned HTTP 200 in about 3000 ms.

A valid TLS certificate was observed, expiring Nov 27, 2026.

Threat checks and score context

External malware-provider coverage was unavailable. The report does not treat this missing check as a clean result.

Safety Score: 66/100. Evidence Confidence: 65%. These measure different things.

Community reviews of kayak.es

No approved reviews yet ☆☆☆☆☆

Visitor experiences are separate from the independent technical Safety Score.

Visitor opinions remain separate from the technical Safety Score.

Public content profile

Pages reviewed on kayak.es

10 of up to 10 pages

We sampled public pages from this website to understand its subject and contact paths. The titles and short descriptions below come from the website itself. They are not endorsements or independent safety findings.

Busca vuelos, hoteles y coches de alquiler | KAYAKKAYAK busca en cientos de webs de viajes en segundos y encuentra la información que necesitas para elegir el vuelo, hotel o coche de alquiler perfecto. KAYAK - Quiénes somosEn KAYAK, el sistema de comparación nacido en Sídney (Australia), no solo estamos convencidos de ser la interfaz de comparación de precios de hoteles más fácil de usar, sino que ta Cómo funciona nuestra web - KAYAKCómo funciona nuestra web Prensa - KAYAKInformación de contacto del equipo de KAYAK para la prensa. Socios - KAYAKPonte en contacto con el equipo de venta de publicidad de KAYAK para obtener más información acerca de la publicidad de KAYAK o proponer su inserción en un email promocional. Novedades y consejos de expertos | KAYAK Blog EspañaDescubre novedades sobre viajes, consejos de expertos y nuevas ideas. En momondo encontrarás viajes, consejos y herramientas para planear el viaje perfecto. Vuelos baratos | Buscador de vuelos | KAYAKKAYAK busca en cientos de webs de viajes en segundos y encuentra la información que necesitas para tomar la decisión correcta. Dónde alojarse: encuentra ofertas y descuentos de alojamiento - KAYAKKAYAK busca en cientos de webs de viajes en segundos para ayudarte a encontrar el alojamiento perfecto. Compara ofertas de alojamiento y opiniones verificadas de huéspedes. Alquiler de coches | Ofertas de coches de alquiler baratos | KAYAKKAYAK busca en cientos de webs de viajes en segundos para ayudarte a encontrar el coche de alquiler perfecto. Ahorra un 30% o más. Busca paquetes vacacionales en KAYAKKAYAK es una herramienta de viaje. KAYAK busca en cientos de webs para ayudarte a encontrar las mejores vacaciones.

Public page evidence

Topics and keywords observed on kayak.es

12 phrases

These phrases were extracted locally from sampled public page metadata. They are observations, not search-volume or ranking estimates.

buscaTitle, H1, Meta description5 sampled pages
busca en cientosMeta description5 sampled pages
cientos de websMeta description5 sampled pages
de alquilerTitle, H1, Meta description2 sampled pages
viajesH1, Meta description6 sampled pages
de viajes enMeta description4 sampled pages
en segundosMeta description4 sampled pages
encuentraTitle, H1, Meta description4 sampled pages
para ayudarte encontrarMeta description3 sampled pages
cochesTitle, H12 sampled pages
vuelosTitle, H12 sampled pages
coches deTitle, H12 sampled pages

At a glance

Key findings

✓

Report is current

The displayed evidence comes from the published immutable scan.

i

Confidence is separate

Unavailable evidence is shown as missing and never counted as clean.

!

Verify before sensitive actions

Check the exact URL and context before payments, credentials, or downloads.

Fully explainable

Why this score?

Versioned weights
Threat IntelligenceWeight 25%
55/100

Threat providers were unavailable. The neutral uncertainty baseline is not a clean verdict.

Domain HistoryWeight 10%
0/100

Evidence is unavailable.

InfrastructureWeight 10%
95/100

Observed DNS records and network address were checked.

Website SecurityWeight 15%
95/100

Observed certificate validity and TLS protocol were checked.

Security HygieneWeight 15%
70/100

Observed security header values were checked for basic protective settings. Empty values, disabled HSTS and unrecognized values receive no credit. This is not a complete browser-policy validation.

TransparencyWeight 5%
64/100

Observed site metadata and About page were checked. Publisher-supplied details are not independently verified.

ReputationWeight 5%
50/100

Popularity is weak context, not proof of safety. Unranked sites use a neutral baseline.

Operational StabilityWeight 15%
83/100

Observed HTTP status and final connection scheme were checked.

Server-side analysis

Automated security checks

Local antivirus and phishing checks

ClamAV · homepage HTMLNo signature match in the sampled HTML
Engine version1.5.4
Signature database date (UTC)2026-10-18T06:24:14+00:00
HTML bytes submitted1,670,102
Phishing.Database · exact hostnameNot listed in this snapshot
Feed downloaded (UTC)2026-10-18T18:00:07+00:00
Hosts in local snapshot386,082

Sampled scripts and pages

Resource analysis incomplete

2 resources checked · 0 script links observed on the homepage. Partial resource coverage.

ClamAV inspects the fetched homepage HTML on our server. New scans also sample up to four linked scripts and two collected internal pages, with size and time limits. Scripts are not executed. Other downloads, private server files and logged-in pages remain outside this check. A signature match needs investigation and can be a false positive. No match is not a whole-site safety guarantee.

Exact hostname lookup uses a downloaded Phishing.Database snapshot. It does not send this domain to an external lookup API or mark sibling subdomains as harmful. Not listed does not mean safe. Snapshot age is download age, not proof that every entry was recently revalidated.

Homepage HTML only · Eight local rule families · local-security-v2

Checks use the fetched page and redirect chain. Scripts are not executed, forms are not submitted, and linked files are not downloaded. This is not a malware clearance.

Page resource inventory

Linked scripts0
Inline scripts5
Embedded frames0
External script hosts0

Counts describe the sampled HTML, not every resource loaded by the browser. External resources are common and are not automatically harmful.

Partial analysis. Only the first 512 KiB of the page were inspected.

No listed local patterns observed. The limited rule set cannot detect every threat or behavior.

External threat intelligence

Provider coverageNot checked

Local checks do not query external reputation databases. An unavailable check is never a clean result.

Registration

Domain information

Public RDAP observation
Canonical domainkayak.es
RegistrarUnavailable
RegisteredUnavailable
Domain ageUnavailable
ExpiresUnavailable
Registry statusesUnavailable
Report statePublished

Infrastructure

Network & hosting

Observed endpoint, not legal location
IP address151.101.1.29
Autonomous systemUnavailable
Network organizationUnavailable
Observed countryUnavailable
CDNNot detected
Web application firewallNot detected

At a glance

Infrastructure summary

Observed during this scan

A compact view of the connection, DNS and security surface. These observations describe what the scanner could verify at scan time and do not prove ownership or ongoing availability.

HTTP response200 · https://www.kayak.es/
Endpoint151.101.1.29
NetworkUnavailable
CDN and WAFNot detected · Not detected
DNS surface19 records · 3 nameservers · 7 mail exchangers
Protection signals4 security headers · 3 technologies · DNSSEC unknown

Page telemetry

Observed page statistics

Safe metadata only

These counters describe the fetched response and sampled HTML. Script counts describe references in the markup, not a complete browser network log. Cookie counts cover observed response headers.

Response size1,670,102 bytes
HTTP check duration3,000 ms
Cookies observed10
Script resources0 · 0 external hosts
Frames and sampled checks0 frames · 2 resources checked

Encrypted transport

TLS certificate

Valid when observed
StatusValid when observed
ProtocolTLSv1.3
IssuercountryName=US, organizationName=Let's Encrypt, commonName=YR1
Valid fromAug 29, 2026
Valid untilNov 27, 2026
Certificate nameskayak.es

Resolution

DNS footprint

DNSKEY status unknown

DNSKEY presence does not verify the DNSSEC signature chain. Missing records can mean no record was returned or the lookup was unavailable.

A151.101.1.29TTL —
A151.101.129.29TTL —
A151.101.193.29TTL —
A151.101.65.29TTL —
AAAA2a04:4e42::285TTL —
AAAA2a04:4e42:200::285TTL —
AAAA2a04:4e42:400::285TTL —
AAAA2a04:4e42:600::285TTL —
NSblue.foundationdns.comTTL —
NSblue.foundationdns.netTTL —
NSblue.foundationdns.orgTTL —
MX0 aspmx.l.google.comTTL —
MX10 aspmx2.googlemail.comTTL —
MX10 aspmx3.googlemail.comTTL —
MX10 aspmx4.googlemail.comTTL —
MX10 aspmx5.googlemail.comTTL —
MX5 alt1.aspmx.l.google.comTTL —
MX5 alt2.aspmx.l.google.comTTL —
TXTv=spf1 include:spf.kayak.com ~allTTL —

DNS observations · no external lookup API

Domain email protection

Exact-host SPF and DMARC observations help the owner investigate email impersonation risks. They are separate from website malware checks and do not change the Safety Score.

SPFPolicy record observed, not fully validated
DMARCPolicy record observed, not fully validated

What to do next

Review the records with your mail administrator. Inventory legitimate senders and test SPF and DKIM alignment before enforcing a stricter DMARC policy. Fix duplicate records and investigate overly permissive SPF rules.

This bounded check does not send email, probe SMTP, evaluate recursive SPF includes, verify DKIM signatures or apply organizational-domain DMARC inheritance. A missing subdomain record does not prove that no inherited protection exists. A DNS timeout is unknown, not an absent record. A policy record is not proof that messages authenticate successfully.

Responsible disclosure

security.txt

RFC 9116 observation
StatusPublished and readable
Security contacts1
Policy linkObserved
ExpiryMissing or expired

This is a public vulnerability-reporting contact file. Its presence does not prove that the website is safe and does not change the independent Safety Score.

Browser protections

Security headers

4 observed
content-security-policypresent upgrade-insecure-requests; frame-ancestors 'self'
referrer-policypresent origin-when-cross-origin
strict-transport-securitypresent max-age=10886400; preload
x-content-type-optionspresent nosniff

Response headers

Cookie protections

Passive observation
Cookies observed10
Missing Secure6
Missing HttpOnly2
Missing SameSite9

Only cookie attribute counts are retained. Cookie names and values are never stored. These observations are not proof of compromise and do not independently change the Safety Score.

Detected stack

Technologies

Bootstrap 80% Google Analytics 94% Tailwind CSS 72%

Versions are shown only when publicly exposed by the page or response headers. An observed version is not, by itself, proof of a vulnerability.

JavaScript library advisories

JavaScript advisory analysis could not be completed or no eligible script files were sampled. No clean result is implied.

About this website

What the site says about itself

En KAYAK, el sistema de comparación nacido en Sídney (Australia), no solo estamos convencidos de ser la interfaz de comparación de precios de hoteles más fácil de usar, sino que también ayudamos a nuestros usuarios a elegir el mejor hotel tanto con la ayuda de las clasificaciones y comentarios de otros huéspedes como con las descripciones y fotos de los hoteles.

View the site's About page ↗

This is publisher supplied information. The independent safety findings are shown separately.

Publisher supplied

Public contact details

These details were observed on the website, not independently verified as an active support channel.

Emailpress@kayak.comSource: https://www.kayak.es/press-contact
Emailemea_pr@kayak.comSource: https://www.kayak.es/press-contact
Emailapacpr@kayak.comSource: https://www.kayak.es/press-contact
Emaillatam@kayak.comSource: https://www.kayak.es/press-contact
Emailmarketingcontact@kayak.comSource: https://www.kayak.es/partners-contact

Structured facts

Website identity & response

Public page metadata
Page titleBusca vuelos, hoteles y coches de alquiler | KAYAK
First headingBusca vuelos, hoteles y coches de alquiler
DescriptionKAYAK busca en cientos de webs de viajes en segundos y encuentra la información que necesitas para elegir el vuelo, hotel o coche de alquiler perfecto.
Canonical URLhttps://www.kayak.es
Final URLhttps://www.kayak.es/
HTTP response200 · text/html;charset=UTF-8 · 3000 ms
Languagees
Structured typesFAQPage · Organization · Question · Website
Page page detectedhttps://www.kayak.es/news/About page detectedhttps://www.kayak.es/aboutContact page detectedhttps://www.kayak.es/press-contact
1100% evidence confidence
present100% evidence confidence
1100% evidence confidence
Security txt.has canonical100% evidence confidence
Security txt.expires valid100% evidence confidence
1100% evidence confidence
1100% evidence confidence
es100% evidence confidence
1100% evidence confidence
10100% evidence confidence
6100% evidence confidence
9100% evidence confidence
2100% evidence confidence
Local headers.cors credentials with wildcard100% evidence confidence
19100% evidence confidence
3100% evidence confidence
7100% evidence confidence
unavailable100% evidence confidence
Dns consistency.cname present100% evidence confidence
Local headers.csp wildcard sources100% evidence confidence
Local headers.permissions policy present100% evidence confidence
1100% evidence confidence
1100% evidence confidence
10886400100% evidence confidence
Local headers.hsts include subdomains100% evidence confidence
8100% evidence confidence
Local headers.csp unsafe inline100% evidence confidence
Local headers.csp unsafe eval100% evidence confidence
1100% evidence confidence
Local headers.csp has object src100% evidence confidence
Local headers.csp has default src100% evidence confidence
Local headers.cors wildcard origin100% evidence confidence
Local headers.cors present100% evidence confidence

Connection path

Redirect chain

1 recorded hops
Hop 1https://www.kayak.es/

The chain is shown exactly as observed by the scanner. A redirect is not itself a malware finding, but unexpected domains or an HTTP downgrade deserve review.

Premium monitoring

Catch downtime and security changes automatically

Regular checks, availability history, and alert emails are reserved for Premium websites. Free reports remain point-in-time scans and do not create recurring server work.

Enable monitoring for this website

Compared with the previous scan

What changed

A comparison will appear after the next completed scan.

Explainable matching

Digital fingerprint

fingerprint-v1
quiet-orbit-field-215

Comparable components help find technically related websites. A match does not prove common ownership.

DnsHashed private comparison value
TechnologiesHashed private comparison value

Material changes only

Change history

Show change history

No meaningful changes recorded yet.

Website icon for kayak.es

Visual evidence

Website screenshot

kayak.esPreview unavailable

No usable browser image was saved. The website icon is separate from a screenshot and is not visual evidence of the page.

For site owners

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Questions about kayak.es

FAQ

Still have questions? Contact us →
Is kayak.es safe to visit?

The latest Safety Score is 66/100 with 65% Evidence Confidence. This is a point-in-time assessment of observed technical signals, not a guarantee. Check the exact address and avoid entering payment details if anything looks unusual.

Did the scan detect malware on kayak.es?

ClamAV found no signature match in the sampled homepage HTML. External scripts, downloads and private server files were not checked. This is not a whole-site malware clearance.

When was kayak.es registered?

The registry lookup did not provide a reliable creation date in this scan.

Did kayak.es have a valid TLS certificate?

The scanner observed a valid TLS certificate using TLSv1.3. A valid certificate alone does not establish that the site is safe.

How does kayak.es describe itself?

The website's About page describes its purpose in the report above. This is publisher-supplied information and is separate from independent security findings.

Can a paid listing change this website's score?

No. Premium placement and owner-supplied pages are labelled separately. Technical evidence, the Safety Score and moderation decisions remain independent.

Share your experience with kayak.es

Community reviews are moderated and remain separate from the technical Safety Score.

Write review →