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Infrastructure

· 9 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.
SCORE
84
GRADE
B
FIX
1
REVIEW
4
PASS
4
INFO
0
Probed from Madrid, Spain
301 Moved Permanently
Checks
9
4 PASS 4 REVIEW 1 FIX
D
CDN & Delivery
Action
No CDN detected
FIX
No CDN detected
Warning::
No CDN detected
A CDN can significantly improve load times for users around the world by caching content at edge nodes closer to them.
No CDN detected

Consider using a CDN to improve global delivery speed and reduce origin load.

C
IPv6 Readiness
Action
No IPv6 support
REVIEW
No IPv6 support
Info::
No IPv6 (AAAA) records found
IPv6 support is increasingly important for global accessibility. About 40% of internet users have IPv6 connectivity.
No IPv6 Support
About 40% of internet users have IPv6. Consider adding AAAA records.

IPv6 support is increasingly important for global accessibility. About 40% of internet users have IPv6 connectivity.

Why this matters

No AAAA records — same impact as 'no IPv6 (AAAA) records'; IPv6-preferring clients pay extra latency falling back to IPv4.

Source: Google IPv6 stats

B
Crawlability
robots.txt present, no sitemap
REVIEW
robots.txt present, no sitemap
Info::
robots.txt is present
Got: 10240 bytes
Info::
No sitemap.xml found
A sitemap helps search engines discover and index your pages more efficiently.
Info::
robots.txt does not reference a sitemap
Add a 'Sitemap:' directive to robots.txt so search engines can discover your sitemap.

A sitemap helps search engines discover and index your pages more efficiently.

Why this matters

No sitemap.xml — Google relies on crawl-graph discovery alone, slowing indexing of deep or fresh URLs.

Learn more ▾

A sitemap accelerates Google's discovery of new and updated content. Most CMSes auto-generate one; static-site frameworks need a build-step plugin. Reference it from robots.txt and submit in Search Console to confirm Google can fetch it.

Source: sitemaps.org / Google Search Central

Add a 'Sitemap:' directive to robots.txt so search engines can discover your sitemap.

Why this matters

robots.txt omits Sitemap: directive — crawlers must fetch /sitemap.xml by convention; reliable but missing the explicit hint.

Source: sitemaps.org

robots.txt 200 OK
Size 10240 B Sitemaps referenced 0 User-agents Googlebot, Bingbot, YandexBot, Baiduspider, OAI-Searchbot Blocking No — crawling allowed
#
#              ///////
#             //     //
#            //       //
#           //         //                           ///             ///                      ///
#          //           //                                          ///                      ///
#         //     ///     //               //// ///  ///  /// ////   /// ////     /// ////    /// ////
#        //   ///   ///   //            //////////  ///  ////////// ///////////  //////////  ///////////
#       //   //       //   //          ///     ///  ///  ///        ///      /// ///     /// ///      ///
#      //    //       //    //        ///      ///  ///  ///        ///      /// ///     /// ///      ///
#     //      //     //      //        ///     ///  ///  ///        ///     ///  ///     /// ///     ///
#    //        //   //        //        //////////  ///  ///        //////////   ///     /// //////////
#    //         /////         //
#    //         /////         //
#     //      ///   ///      //
#       //////         //////
#
#
#    Hello bot, engineer, or very lost layperson! Welcome to your stay on the Airbnb site, we're happy to have you as a guest.
#    If you're a human who likes solving interesting challenges with other humans, check out our careers page: https://careers.airbnb.com/positions/?_departments=engineering
#    If you're a bot who likes crawling webpages, please mind the house rules and avoid accessing any disallowed subfolders to earn a 5-star review from us.
#    Either way, thanks for stopping by! There's no need to collect your garbage at the end of your stay - we use Javascript for that.
#    See you on the next crawl!

User-agent: Googlebot
Allow: /calendar/ical/
Allow: /.well-known/amphtml/apikey.pub
Disallow: /.well-known/assetlinks.json
Disallow: /*/skeleton
Disallow: /*/sw_skeleton
Disallow: /500
Disallow: /account
Disallow: /alumni
Disallow: /api/v1/trebuchet
Disallow: /associates/click
Disallow: /book/
Disallow: /calendar/
Disallow: /contact_host
Disallow: /disaster/lookup
Disallow: /email/unsubscribe
Disallow: /embeddable
Disallow: /experiences/*?*scheduled_id
Disallow: /experiences/*?*modal
Disallow: /experiences/*/book
Disallow: /external_link?
Disallow: /fix-it
Disallow: /fixit
Disallow: /forgot_password
Disallow: /google_place_photo
Disallow: /api/v2/google_place_photos
Disallow: /groups
Disallow: /guidebooks
Disallow: /help/feedback
Disallow: /help/search
Disallow: /help/search
Disallow: /home/dashboard
Disallow: /inbox
Disallow: /login_with_redirect
Disallow: /logout
Disallow: /manage-listing
Disallow: /messaging/ajax_already_messaged/
Disallow: /my_listings
Disallow: /oauth_connect
Disallow: /payments/book
Disallow: /reservation
Disallow: /rooms/*/amenities
Disallow: /rooms/*/enhanced-cleaning
Disallow: /rooms/*/house-rules
Disallow: /rooms/*/location
Disallow: /rooms/*/photos
Disallow: /rooms/*/reviews
Disallow: /rooms/*/safety
Disallow: /rooms/*?viralityEntryPoint
Disallow: /rooms/*/cancellation-policy
Disallow: /rooms/*/description
Disallow: /s/guidebooks
Disallow: /signed_out_modal.json
Disallow: /signup_modal
Disallow: /stories
Disallow: /trips/upcoming
Disallow: /trips/v1/
Disallow: /update-your-browser
Disallow: /users/*/listings
Disallow: /users/show
Disallow: /users/profile
Disallow: /api/v3/LandingPageStaysQuery
Disallow: /s/*?
Disallow: /s/*/homes
Disallow: /things-to-do/places

User-agent: Bingbot
Allow: /calendar/ical/
Allow: /.well-known/amphtml/apikey.pub
Disallow: /.well-known/assetlinks.json
Disallow: /*/skeleton
Disallow: /*/sw_skeleton
Disallow: /500
Disallow: /account
Disallow: /alumni
Disallow: /api/v1/trebuchet
Disallow: /associates/click
Disallow: /book/
Disallow: /calendar/
Disallow: /contact_host
Disallow: /disaster/lookup
Disallow: /email/unsubscribe
Disallow: /embeddable
Disallow: /experiences/*?*scheduled_id
Disallow: /experiences/*?*modal
Disallow: /experiences/*/book
Disallow: /external_link?
Disallow: /fix-it
Disallow: /fixit
Disallow: /forgot_password
Disallow: /google_place_photo
Disallow: /api/v2/google_place_photos
Disallow: /groups
Disallow: /guidebooks
Disallow: /help/feedback
Disallow: /help/search
Disallow: /help/search
Disallow: /home/dashboard
Disallow: /inbox
Disallow: /login_with_redirect
Disallow: /logout
Disallow: /manage-listing
Disallow: /messaging/ajax_already_messaged/
Disallow: /my_listings
Disallow: /oauth_connect
Disallow: /payments/book
Disallow: /reservation
Disallow: /rooms/*/amenities
Disallow: /rooms/*/enhanced-cleaning
Disallow: /rooms/*/house-rules
Disallow: /rooms/*/location
Disallow: /rooms/*/photos
Disallow: /rooms/*/reviews
Disallow: /rooms/*/safety
Disallow: /rooms/*?viralityEntryPoint
Disallow: /rooms/*/cancellation-policy
Disallow: /rooms/*/description
Disallow: /s/guidebooks
Disallow: /signed_out_modal.json
Disallow: /signup_modal
Disallow: /stories
Disallow: /trips/upcoming
Disallow: /trips/v1/
Disallow: /update-your-browser
Disallow: /users/*/listings
Disallow: /users/show
Disallow: /users/profile
Disallow: /api/v3/LandingPageStaysQuery
Disallow: /s/*?
Disallow: /s/*/homes
Disallow: /things-to-do/places

User-agent: YandexBot
Allow: /calendar/ical/
Allow: /.well-known/amphtml/apikey.pub
Disallow: /.well-known/assetlinks.json
Disallow: /*/skeleton
Disallow: /*/sw_skeleton
Disallow: /500
Disallow: /account
Disallow: /alumni
Disallow: /api/v1/trebuchet
Disallow: /associates/click
Disallow: /book/
Disallow: /calendar/
Disallow: /contact_host
Disallow: /disaster/lookup
Disallow: /email/unsubscribe
Disallow: /embeddable
Disallow: /experiences/*?*scheduled_id
Disallow: /experiences/*?*modal
Disallow: /experiences/*/book
Disallow: /external_link?
Disallow: /fix-it
Disallow: /fixit
Disallow: /forgot_password
Disallow: /google_place_photo
Disallow: /api/v2/google_place_photos
Disallow: /groups
Disallow: /guidebooks
Disallow: /help/feedback
Disallow: /help/search
Disallow: /help/search
Disallow: /home/dashboard
Disallow: /inbox
Disallow: /login_with_redirect
Disallow: /logout
Disallow: /manage-listing
Disallow: /messaging/ajax_already_messaged/
Disallow: /my_listings
Disallow: /oauth_connect
Disallow: /payments/book
Disallow: /reservation
Disallow: /rooms/*/amenities
Disallow: /rooms/*/enhanced-cleaning
Disallow: /rooms/*/house-rules
Disallow: /rooms/*/location
Disallow: /rooms/*/photos
Disallow: /rooms/*/reviews
Disallow: /rooms/*/safety
Disallow: /rooms/*?viralityEntryPoint
Disallow: /rooms/*/cancellation-policy
Disallow: /rooms/*/description
Disallow: /s/guidebooks
Disallow: /signed_out_modal.json
Disallow: /signup_modal
Disallow: /stories
Disallow: /trips/upcoming
Disallow: /trips/v1/
Disallow: /update-your-browser
Disallow: /users/*/listings
Disallow: /users/show
Disallow: /users/profile
Disallow: /api/v3/LandingPageStaysQuery
Disallow: /s/*?
Disallow: /s/*/homes
Disallow: /things-to-do/places

User-agent: Baiduspider
Allow: /calendar/ical/
Allow: /.well-known/amphtml/apikey.pub
Disallow: /.well-known/assetlinks.json
Disallow: /*/skeleton
Disallow: /*/sw_skeleton
Disallow: /500
Disallow: /account
Disallow: /alumni
Disallow: /api/v1/trebuchet
Disallow: /associates/click
Disallow: /book/
Disallow: /calendar/
Disallow: /contact_host
Disallow: /disaster/lookup
Disallow: /email/unsubscribe
Disallow: /embeddable
Disallow: /experiences/*?*scheduled_id
Disallow: /experiences/*?*modal
Disallow: /experiences/*/book
Disallow: /external_link?
Disallow: /fix-it
Disallow: /fixit
Disallow: /forgot_password
Disallow: /google_place_photo
Disallow: /api/v2/google_place_photos
Disallow: /groups
Disallow: /guidebooks
Disallow: /help/feedback
Disallow: /help/search
Disallow: /help/search
Disallow: /home/dashboard
Disallow: /inbox
Disallow: /login_with_redirect
Disallow: /logout
Disallow: /manage-listing
Disallow: /messaging/ajax_already_messaged/
Disallow: /my_listings
Disallow: /oauth_connect
Disallow: /payments/book
Disallow: /reservation
Disallow: /rooms/*/amenities
Disallow: /rooms/*/enhanced-cleaning
Disallow: /rooms/*/house-rules
Disallow: /rooms/*/location
Disallow: /rooms/*/photos
Disallow: /rooms/*/reviews
Disallow: /rooms/*/safety
Disallow: /rooms/*?viralityEntryPoint
Disallow: /rooms/*/cancellation-policy
Disallow: /rooms/*/description
Disallow: /s/guidebooks
Disallow: /signed_out_modal.json
Disallow: /signup_modal
Disallow: /stories
Disallow: /trips/upcoming
Disallow: /trips/v1/
Disallow: /update-your-browser
Disallow: /users/*/listings
Disallow: /users/show
Disallow: /users/profile
Disallow: /api/v3/LandingPageStaysQuery
Disallow: /s/*?
Disallow: /s/*/homes
Disallow: /things-to-do/places

User-agent: OAI-Searchbot
Allow: /calendar/ical/
Allow: /.well-known/amphtml/apikey.pub
Disallow: /.well-known/assetlinks.json
Disallow: /*/skeleton
Disallow: /*/sw_skeleton
Disallow: /500
Disallow: /account
Disallow: /alumni
Disallow: /api/v1/trebuchet
Disallow: /associates/click
Disallow: /book/
Disallow: /calendar/
Disallow: /contact_host
Disallow: /disaster/lookup
Disallow: /email/unsubscribe
Disallow: /embeddable
Disallow: /experiences/*?*scheduled_id
Disallow: /experiences/*?*modal
Disallow: /experiences/*/book
Disallow: /external_link?
Disallow: /fix-it
Disallow: /fixit
Disallow: /forgot_password
Disallow: /google_place_photo
Disallow: /api/v2/google_place_photos
Disallow: /groups
Disallow: /guidebooks
Disallow: /help/feedback
Disallow: /help/search
Disallow: /help/search
Disallow: /home/dashboard
Disallow: /inbox
Disallow: /login_with_redirect
Disallow: /logout
Disallow: /manage-listing
Disallow: /messaging/ajax_already_messaged/
Disallow: /my_listings
Disallow: /oauth_connect
Disallow: /payments/book
Disallow: /reservation
Disallow: /rooms/*/amenities
Disallow: /rooms/*/enhanced-cleaning
Disallow: /rooms/*/house-rules
Disallow: /rooms/*/location
Disallow: /rooms/*/photos
Disallow: /rooms/*/reviews
Disallow: /rooms/*/safety
Disallow: /rooms/*?viralityEntryPoint
Disallow: /rooms/*/cancellation-policy
Disallow: /rooms/*/description
Disallow: /s/guidebooks
Disallow: /signed_out_modal.json
Disallow: /signup_modal
Disallow: /stories
Disallow: /trips/upcoming
Disallow: /trips/v1/
Disallow: /update-your-browser
Disallow: /users/*/listings
Disallow: /users/show
Disallow: /users/profile
Disallow: /api/v3/LandingPageStaysQuery
Disallow: /s/*?
Disallow: /s/*/homes
Disallow: /things-to-do/
sitemap.xml No sitemap found

No sitemap found

Adding a sitemap helps search engines discover your pages.

B
URL Variants
www/non-www, trailing slash, HTTP→HTTPS
REVIEW
www/non-www, trailing slash, HTTP→HTTPS
Critical::
Both www and non-www versions serve content
Got: Both variants return 200 Expected: One variant 301-redirects to the other
Info::
HTTP correctly 301-redirects to HTTPS

www / non-www

200https://www.airbnb.com/
200https://airbnb.com/

Inconsistent — duplicate content risk

HTTP → HTTPS

301http://airbnb.com/ → https://airbnb.com/

Consistent

B
TLS Certificate Expiry & Recommendations
83 days until leaf cert expires — 4 issues to address
REVIEW

Certificate validity

83
days left
0d 30d 60d 90d+

Recommended actions

  • Prefer TLS 1.3 — TLS 1.2 is acceptable but TLS 1.3 removes RSA key exchange and improves latency
  • Submit your domain to hstspreload.org to be added to the Chrome preload list
  • Enable DNSSEC on your domain for DNS spoofing protection
  • Enable OCSP stapling on your TLS server to remove a CA roundtrip and protect user privacy
A+
DNS Records
2 A records, 68 ms lookup
PASS
2 A records, 68 ms lookup
Info::
Resolves to 2 IPv4 address(es)
Got: 166.117.27.62, 166.117.189.176
Info::
No IPv6 (AAAA) records
Info::
8 nameserver(s) configured
Got: ns-474.awsdns-59.com, dns3.p08.nsone.net, ns-558.awsdns-05.net, ns-1932.awsdns-49.co.uk, ns-1453.awsdns-53.org, dns4.p08.nsone.net, dns1.p08.nsone.net, dns2.p08.nsone.net
Info::
5 mail exchanger(s) configured
Info::
CAA records not checked
CAA record lookup requires a specialized DNS resolver. This check will be available in a future update.
Info::
SPF record present in TXT
Info::
DNS resolution time: 68 ms
Got: 68 ms
A166.117.27.62, 166.117.189.176
AAAA—
CNAME—
NSns-474.awsdns-59.com, dns3.p08.nsone.net, ns-558.awsdns-05.net, ns-1932.awsdns-49.co.uk, ns-1453.awsdns-53.org, dns4.p08.nsone.net, dns1.p08.nsone.net, dns2.p08.nsone.net
MX
1 aspmx.l.google.com
5 alt1.aspmx.l.google.com
5 alt2.aspmx.l.google.com
10 alt3.aspmx.l.google.com
10 alt4.aspmx.l.google.com
TXT
DirectFedAuthUrl=https://airbnb.okta.com/app/airbnb_pwcprodnewhiddensaml_1/exk22...
canva-site-verification=LTDCDSi1WalQaoEcq8B1WA
rzp-site-verification=31fa3e1cd566e8d7347ed9bb16424c59
status-page-domain-verification=tb81t2ndk8pb
MS=ms85621737
google-site-verification=Dz--VdnW2R_4K45T0eM8i0vNpFlip_o10WidHL5a3cg
status-page-domain-verification=vxdvtv6jn2y9
google-site-verification=_e6Ayd8GN0S5dR116WkaM5ds5tx3ekRD5DC9-51pGrg
webexdomainverification.=162d362c-c218-48f0-8b53-0017116e6f29
openai-domain-verification=dv-g8FeEwzIIZCUjUpPuF8szG3a
SPF v=spf1 include:spf1.airbnb.com ip6:2c0f:fb50:4864::/56 ip6:2a00:1450:4864::/56 i...
wework-site-verification=pnT3RXj0097aqZvB
atlassian-domain-verification=mvMbea0qZ4IoMr8/xjkRYgjiHikXBbF04PZnZYv1Nj9UgppCna...
dtm-domain-verification=pKWJVhJM8WfWtDBjyfKZjwxGurB9fiCf1TpvWO_Kvmw
adobe-idp-site-verification=e68ae64c-3a65-4439-b368-0042e72c4cc8
elevenlabs=igH15TA-6-8aXgxhsL6--iDut7kibGkXsl3Qrvth8gY
50c24edbaddf46e8ad85f3b7aa6c19bb
masv=MDSVaBxDxTKiIngeAbltVvdnlTkAhnci
gradle-verification=VV7U686RA4HKV4QKVJ4L85Q6V6CJ6
segment-site-verification=ZkxkEuKJrGI9MrWGC0qw795Xkj9ZlcBq
anthropic-domain-verification-2s2h87=NaRxcN9zTtIb3insUyX7U264A
_xq93ok5sfmdl10if1q09mj0s3dwyg7z
paloaltonetworks-site-verification=4df1258d8366090409f33305a49c27e5e867aa6dfd8d8...
google-site-verification=HEoQR0xvby-BYv7pNt06jkvTF44l6rvMnREUZSTyfYQ
facebook-domain-verification=t3zulila9jjnrfbyt6vjamhqdxz47f
ecostruxure-it-verification=5dd49b15-5fc0-4967-914f-3cc7b2fd6cdf
stripe-verification=271cb9609512aa1a36ff5693b0a5cd9f04d19e089e8abae29dde633abc19...
google-site-verification=EFtD_37EY5f55YpAvM8rJ-e6Mwi1I3HF9Xuym2-ZlY8
google-site-verification=A8e2zY9GYwx8D7x0aOz09Vl4gHfPmv86y_TbW1TUDqs
reejig-platform-domain-verification-0dc5cd=a9i760YDrujxnHMEEoXwZP5bD
webexdomainverification.725890277b499457e053ab06fc0a5ef4=b060825b-4db4-4ce3-a61e...
bettercomp-verify=2b6685a8a6a942417057188531c867db5c85bc8aa25f038a77784e6f0f8bc8...
docusign=d56dee1c-0384-4ffa-8801-e6bea308af97
docusign=1c606b88-26ef-48f9-8913-a4251a947532
cisco-ci-domain-verification=eef9c0a839b89aed57cdd00866d163bb0660fec297c0c1e4b27...
apple-domain-verification=KVJVb0VKHY0IkzDH
neat-pulse-domain-verification-Kkvm4PN=ab046095-265e-45ae-8816-c61097444bfd
miro-verification=c5c6890aa37542fb59662ade09a0778c6e028b2f
yahoo-verification-key=YbxdxsyS96Uy5zQpwbZnLfjBY3tMlG2qWTSLHvVrsZ8=
CAALookup not available with standard resolver
Resolved in 68 ms

CAA record lookup requires a specialized DNS resolver. This check will be available in a future update.

Why this matters

Informational: CAA (Certification Authority Authorization) records weren't checked in this scan.

A
Redirect Chain
1 redirect(s), 687 ms total
PASS
1 redirect(s), 687 ms total
Info::
Single redirect
Got: https://airbnb.com → https://www.airbnb.com/ (301)
Info::
WWW normalization redirect
Info::
Redirect overhead: 687 ms total
Got: 687 ms

https://airbnb.com

417 ms · HTTP/1.1

301

https://www.airbnb.com/

270 ms · HTTP/1.1 FINAL

#URLStatusTimeProtocolServer
1https://airbnb.com301417 msHTTP/1.1nginx
2https://www.airbnb.com/200270 msHTTP/1.1nginx

See the visual redirect chain in the HTTP Probe tab →

A+
Domain Intelligence
airbnb.com — via MarkMonitor Inc., 17 years, 11 months old, hosted on AWS
PASS
airbnb.com — via MarkMonitor Inc., 17 years, 11 months old, hosted on AWS
Info::
Domain registered until Aug 5, 2026 (3 months remaining)
Info::
DNSSEC is not enabled
DNSSEC protects against DNS spoofing attacks. While not required, enabling DNSSEC adds an additional layer of security. Contact your DNS provider to enable it.
Info::
Registrar: MarkMonitor Inc.
Warning::
Registrar lock is NOT enabled
The domain can be transferred without an unlock step. Enable registrar lock (clientTransferProhibited) in your registrar's control panel to protect against unauthorized or accidental transfers.
Info::
Hosting: AWS
Got: AS16509
Domain expiry

22 days

August 5, 2026

SSL certificate

83 days

Issued by DigiCert Inc

Domain age

17 years, 11 months

Registered August 5, 2008

DNSSEC

Not enabled

Protects against DNS spoofing

Hosting

AWS

ASN AS16509

166.117.189.176

Registrar

MarkMonitor Inc.

Unlocked 8 NS records
Expiry timeline
Today
+1 year
Domain expiry SSL expiry Danger zone (≤30 days)
Recommended actions
  • Renew the domain or enable auto-renewal to prevent accidental expiry
  • Enable DNSSEC to protect visitors from DNS spoofing
  • Enable registrar lock (clientTransferProhibited) to block unauthorized domain transfers
Registrar MarkMonitor Inc.
Created August 5, 2008 (17 years, 11 months ago)
Expires August 5, 2026 (3 months)
Last Updated October 11, 2024
Name Servers dns1.p08.nsone.net, dns2.p08.nsone.net, dns3.p08.nsone.net, dns4.p08.nsone.net, ns-1453.awsdns-53.org, ns-1932.awsdns-49.co.uk, ns-474.awsdns-59.com, ns-558.awsdns-05.net
DNSSEC Not enabled
Hosting
IP Address 166.117.189.176
ASN AS16509 (AMAZON-02 - Amazon.com, Inc., US)
Provider AWS
Data source: rdap (0.3s)

DNSSEC protects against DNS spoofing attacks. While not required, enabling DNSSEC adds an additional layer of security. Contact your DNS provider to enable it.

Why this matters

Without DNSSEC, an attacker who can poison your DNS can hijack your domain — and SSL certs alone don't stop them.

Learn more ▾

DNSSEC adds cryptographic signatures to DNS records, preventing forged responses from poisoning resolver caches. Without it, an attacker who controls the network path can redirect your domain to a malicious server before any HTTPS handshake happens. Most modern registrars (Cloudflare, Google Domains, Route 53) enable it with one toggle.

Source: ICANN / RFC 4033

The domain can be transferred without an unlock step. Enable registrar lock (clientTransferProhibited) in your registrar's control panel to protect against unauthorized or accidental transfers.

Why this matters

Without registrar lock, an attacker who phishes your registrar credentials can transfer the domain in minutes — total brand hijack.

Learn more ▾

Registrar lock (clientTransferProhibited, clientUpdateProhibited, clientDeleteProhibited) requires extra verification before any transfer/update/delete. Every major registrar offers it free. Combined with 2FA on your registrar account, it's the strongest defense against domain hijacking.

Source: ICANN / domain-security best practice

A
HTTP Probe Timing
Total 443 ms — DNS, TCP, TLS, TTFB, content transfer breakdown
PASS
DNS Lookup DNS Lookup — time to resolve the domain name to an IP address.
22 ms
TCP Connect TCP Connect — time to establish a TCP connection to the server.
1 ms
TLS Handshake TLS Handshake — time to complete the HTTPS encryption handshake.
316 ms
Time to First Byte Time to First Byte — how long the server takes to respond with the first byte of data.
443 ms
Total Time Total request time from DNS lookup through full response.
443 ms

Connection waterfall

DNS Lookup 22 ms TCP Connect 1 ms TLS Handshake 316 ms Server Processing 105 ms Content Transfer 0 ms
All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.

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