🌐 kayak.es 200 🔒 SSL Valid
Checked: just now 🔗 Visit site
✨ About this site
This is a popular online travel search engine that compares flights, hotels, and car rentals from hundreds of websites.
📊 What the data says
The site runs on a stack including React and Varnish, with security supported by HSTS and CSP headers. It maintains a mobile PageSpeed score of 41 and holds a valid SSL certificate until November 2026.
HTTP Status ?A three-digit code showing if the site loaded successfully (200), redirects (301/302), or has errors (4xx/5xx).Read more →
200
SSL Expires ?When the SSL certificate expires. An expired certificate causes browser security warnings.Read more →
in 37d
Domain Expires ?When the domain registration expires. If not renewed, the domain becomes available to others.Read more →
N/A
Hosting ?The company and location where this website's server is physically located.Read more →
Unknown
Security ?Score based on key HTTP security headers: HSTS, Content-Security-Policy, and X-Frame-Options.Read more →
2/3
IP Address ?The numerical address of the server hosting this website. Reveals location, provider, and network.Read more →
151.101.129.29
Performance ?Lighthouse performance score from Google PageSpeed Insights (0–100). Measures real-world loading speed, interactivity and visual stability.
41 mob
Uptime
100%
⚡ Performance ?Lighthouse performance score from Google PageSpeed Insights (0–100). Measures real-world loading speed, interactivity and visual stability. 41
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Mobile
41
Score
92
Accessibility
96
Best Practices
100
SEO
LCP 14.80s
CLS 0.000
FCP 12.69s
TTFB 0.11s
TBT 572ms
SI 12.69s
Checked: 2026-09-05 06:23:49.211011 · View on PageSpeed
🛠️ Tech Stack ?Technologies detected on this website: CMS, frameworks, libraries, CDN, and analytics tools. 5
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📊 Analytics
Google Analytics Google Tag Manager
🎨 CSS Framework
Bootstrap
⚡ Cache
Varnish
⚡ JS Framework
React
🔗 Shared Identifiers 56
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Tracking / monetisation identifiers found on this site that also appear on other domains.

ads.txt seller AppNexus:10239
Shared with 58 other domains
ads.txt seller AppNexus:1356
Shared with 81 other domains
ads.txt seller AppNexus:1908
Shared with 87 other domains
ads.txt seller AppNexus:3703
Shared with 90 other domains
ads.txt seller OpenX:537100188
Shared with 61 other domains
ads.txt seller OpenX:540191398
Shared with 53 other domains
ads.txt seller Rubicon:16114
Shared with 83 other domains
ads.txt seller Rubicon:16414
Shared with 53 other domains
ads.txt seller Rubicon:18020
Shared with 69 other domains
📸 Screenshot Processing...
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⏳

Screenshot is being captured...

🌐 DNS Records ?DNS translates domain names to IP addresses. Records control where the site, email, and services are directed.Read more →
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A (IPv4)151.101.1.29151.101.129.29151.101.65.29151.101.193.29
AAAA (IPv6)2a04:4e42:600::2852a04:4e42:400::2852a04:4e42::2852a04:4e42:200::285
NSblue.foundationdns.comblue.foundationdns.netblue.foundationdns.org
MX10 aspmx5.googlemail.com5 alt1.aspmx.l.google.com5 alt2.aspmx.l.google.com0 aspmx.l.google.com10 aspmx2.googlemail.com10 aspmx3.googlemail.com10 aspmx4.googlemail.com
TXT (1)
v=spf1 include:spf.kayak.com ~all
📋 WHOIS / RDAP ?Public registration data: who registered the domain, when, and when it expires.Read more →
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RegistrarN/A
RegisteredN/A
ExpiresN/A
Last UpdatedN/A
🔒 SSL Certificate ?Encrypts the connection between browsers and this website. Valid SSL = HTTPS works.Read more → Valid
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Subject (CN)kayak.es
IssuerLet's Encrypt
Valid From2026-08-29
Valid Until2026-11-27 (37 days left)
SANs (1)kayak.es
📡 HTTP Headers ?Metadata sent by the server: reveals software, caching rules, and security configuration.Read more →
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Status200
ServerKAYAK/1.0
Content-Typetext/html;charset=UTF-8
Final URLhttps://www.kayak.es/
strict-transport-securitymax-age=10886400; preload
content-security-policyupgrade-insecure-requests; frame-ancestors 'self'; object-src 'none'; base-uri 'self' *.cloudfront.net
x-content-type-optionsnosniff
referrer-policyorigin-when-cross-origin
cache-controlprivate, no-store
x-cacheMISS, MISS
via1.1 varnish
Security headers ?HTTP headers that protect visitors from attacks. HSTS forces HTTPS, CSP controls resource loading, X-Frame-Options prevents clickjacking.Read more →
HSTS
Content-Security-Policy
X-Frame-Options
🏠 Hosting ?Physical infrastructure: where the server is, who operates it, and what network it belongs to.Read more →
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IP Address151.101.129.29
ProviderUnknown
OrganizationN/A
ASNN/A
LocationN/A
🛡️ Security Score B (5/7)
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Valid SSL
HSTS
CSP
X-Frame-Options
X-Content-Type
Referrer-Policy
Permissions-Policy
🗺️ Sitemap & Robots
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Partially restricted
Some areas are hidden from crawlers, but the main content stays open to search engines.
🤖
AI crawlers restricted — ChatGPT-User
Areas hidden from crawlers:
🚫 Entire site 1 🔍 Search & filters 2 🔌 API & endpoints 2 📁 Other paths 30
Show raw disallow rules (35)
/things-to-do/*
/charm/horizon/cars/citycars/CityCarsAgencyMapViewLink
/charm/horizon/cars/airportcars/AirportCarsResults
/charm/horizon/common/search/PreloadAction
/s/horizon/common/layout/AjaxFooterLinks
/charm/horizon/common/layout/AjaxFooterLinks
/s/horizon/common/privacy/AjaxHeaderCookiesMessage
/charm/horizon/common/privacy/AjaxHeaderCookiesMessage
/s/horizon/common/privacy/AjaxStyleJamHeaderCookiesMessage
/s/horizon/common/layout/StyleJamNavMenu
/charm/horizon/common/privacy/AjaxStyleJamHeaderCookiesMessage
/charm/horizon/flights/flightdeals/frontdoor/FlightDealsLinks
/charm/horizon/common/compareto/slide/SlideCompareToAction
/charm/horizon/common/layout/MoreNavContentApiAction
/charm/horizon/common/layout/NavMenuContent
/charm/horizon/flights/flightroutes/AjaxGoodToKnow
/charm/horizon/flights/cabinclassflightroutes/AjaxCabinClassFlightRoutesGoodToKnow
/charm/horizon/flights/flightroutes/AjaxWhenToBookCharts
/charm/horizon/flights/flightroutes/AjaxFlightRouteInfoTable
/charm/horizon/flights/flightroutes/CountryCityRouteFAQAction
/charm/horizon/restaurants/static_details/ajax/RestaurantDetailsReviewsList
/charm/horizon/flights/flightroutes/LatestFlightDealsAjax
/charm/horizon/flights/flightroutes/IpOriginAjax
/api/
/charm/horizon/hotels/venue/ConventionCenterCarsResults
/charm/horizon/hotels/cityguides/CityGuidesBacklinkActivityUrls
/charm/horizon/common/core/AjaxMany
/charm/horizon/react/component/PrivacyMenuStateProviderAction
/charm/horizon/common/authentication/providers/AuthStateProviderAction
/api/search/V8
/hotels/
/charm/horizon/flights/airport/AirportFlightStatusTable
/
/charm/horizon/common/privacy/providers/CookiesDataProvider
/i/api/seo/
… list truncated
Sitemap Found 85 sitemaps (index) pages
Last modified 2026-10-20T01:17:13-04:00
🔗 Social & Meta Tags Complete
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TitleBusca vuelos, hoteles y coches de alquiler | KAYAK
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.
OG TitleBusca vuelos, hoteles y coches de alquiler | KAYAK
OG 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.
OG Imagehttps://content.r9cdn.net/rimg/provider-logos/common/socialmedia/kayak-logo.png?width=1200&height=630&crop=false
OG preview
OG Typearticle
OG Site NameKAYAK
Twitter Cardsummary_large_image
Canonical URLhttps://www.kayak.es
Languagees-es
📧 Mail Security ?Email authentication records (SPF & DMARC) that prevent spoofing and phishing from this domain.Read more →
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SPF✓ Present
v=spf1 include:spf.kayak.com ~all
DMARC✓ Present
v=DMARC1; p=reject; rua=mailto:[email protected],mailto:[email protected]
MX Records
10 → aspmx5.googlemail.com
5 → alt1.aspmx.l.google.com
5 → alt2.aspmx.l.google.com
0 → aspmx.l.google.com
10 → aspmx2.googlemail.com
10 → aspmx3.googlemail.com
10 → aspmx4.googlemail.com
🌍 Other TLDs ?Other top-level domain variants of this domain name and their availability. 20 active 3 available
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.com ●
.net ●
.org ●
.info ●
.io ●
.co ●
.dev ●
.app ●
.me ●
.biz Available
.eu ●
.xyz ●
.fi Available
.se ●
.de ●
.uk ●
.fr ●
.nl ●
.es current
.it ●
.us ●
.ca Available
.com.au ●
.co.uk ●
📡 Uptime Monitor
▼
Current Status 🟢 Online
HTTP Status 200
Response Time 243ms
Last Checked 2026-10-18 05:00:31.32029
Uptime (30d) 100%
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