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https://vrbo.com

Infrastructure

· 9 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.
SCORE
88
GRADE
B
FIX
0
REVIEW
4
PASS
5
INFO
0
Probed from Sao Paulo, Brazil
301 Moved Permanently
Checks
9
5 PASS 4 REVIEW
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: 2046 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 2046 B Sitemaps referenced 0 User-agents *, google-hoteladsverifier, Mediapartners-Google, AdIdxBot, SemrushBot, OAI-SearchBot, PerplexityBot, Perplexity-User, AdsBot-Google-Mobile, AdsBot-Google, ChatGPT-User, Claude-User, Claude-SearchBot Blocking No — crawling allowed
#
# General bots
#
user-agent: *
#hotel
disallow: /Hotel-Search
disallow: /hotel-search
disallow: /search?
disallow: /*/search?
disallow: /ugc/urs/api/hotelreviews/hotel/HOTELID/
disallow: /LastBooking/ElapsedTime
disallow: /*chkin=*
disallow: /*chkout=*
disallow: /HotelCheckout
disallow: /Checkout
disallow: /checkout
disallow: /HotelBookingConfirmation
disallow: /en-au/
disallow: /en-nz/
#flight
disallow: /Flights-Search
disallow: /Flight-Information
disallow: /Flight-SearchResults
disallow: /Flights-BagFees
disallow: /Details
disallow: /FlightCheckout
disallow: /Confirmation-Flight
#package
disallow: /MultiItemCheckout
disallow: /MultiItemBookingConfirmation
disallow: /flexibleshopping
#car
disallow: /carsearch
disallow: /CarCheckout
#activities
disallow: /things-to-do/search?
disallow: /things-to-do/*/search?
disallow: /*/things-to-do/search
disallow: /things-to-do/reviews-external$
#cruise
disallow: /Cruise-Search
disallow: /Cruise-CabinCategory
disallow: /CruiseCheckout
#other
disallow: /legacyGOTO
disallow: /go/
disallow: /info/
disallow: /trips/
disallow: /Search-Results
disallow: /user/createaccount
disallow: /signup?*
disallow: /login?*
#test-seo
disallow: /api/uisprime/track
disallow: /trvl-px/
disallow: /egcs/v2/collect
disallow: /api/ucs/shortlist/
disallow: /api/v4/typeahead/
disallow: /p/home
disallow: /*/p/home
disallow: /auth/
disallow: /*/auth/
disallow: /*/sso/

#
# Ads
#
user-agent: google-hoteladsverifier
user-agent: Mediapartners-Google
user-agent: AdsBot-Google-Mobile
user-agent: AdsBot-Google
user-agent: AdIdxBot
allow: /
#test-seo
disallow: /api/uisprime/track
disallow: /trvl-px/
disallow: /egcs/v2/collect
disallow: /api/ucs/shortlist/
disallow: /api/v4/typeahead/

#
# SemrushBot
#
user-agent: SemrushBot
disallow: /

#
# AI Search
#
user-agent: OAI-SearchBot
user-agent: ChatGPT-User
user-agent: PerplexityBot
user-agent: Perplexity-User
user-agent: Claude-User
user-agent: Claude-SearchBot
allow: /
disallow: /p/home
disallow: /*/p/home
disallow: /auth/
disallow: /*/auth/
disallow: /*/sso/

sitemap.xml No sitemap found

No sitemap found

Adding a sitemap helps search engines discover your pages.

B
TLS Certificate Expiry & Recommendations
190 days until leaf cert expires — 3 issues to address
REVIEW

Certificate validity

190
days left
0d 30d 60d 90d+

Recommended actions

  • Enable HSTS: Strict-Transport-Security: max-age=31536000; includeSubDomains
  • 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
B
CDN & Delivery
Akamai
REVIEW
Akamai
Info::
Site is served via Akamai CDN
Got: server header
CDN Detected: Akamai
Provider Akamai Evidence server header
A+
DNS Records
2 A records, 14 ms lookup
PASS
2 A records, 14 ms lookup
Info::
Resolves to 2 IPv4 address(es)
Got: 2.18.127.230, 2.18.127.245
Info::
No IPv6 (AAAA) records
Info::
10 nameserver(s) configured
Got: dns1.p09.nsone.net, dns2.p09.nsone.net, dns3.p09.nsone.net, dns4.p09.nsone.net, pdns1.ultradns.net, pdns2.ultradns.net, pdns3.ultradns.org, pdns4.ultradns.org, pdns5.ultradns.info, pdns6.ultradns.co.uk
Info::
2 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: 14 ms
Got: 14 ms
A2.18.127.230, 2.18.127.245
AAAA
CNAME
NSdns1.p09.nsone.net, dns2.p09.nsone.net, dns3.p09.nsone.net, dns4.p09.nsone.net, pdns1.ultradns.net, pdns2.ultradns.net, pdns3.ultradns.org, pdns4.ultradns.org, pdns5.ultradns.info, pdns6.ultradns.co.uk
MX
10 mxb.expediagroup.com
10 mxa.expediagroup.com
TXT
MS=ms18587922
5ctfvm6las9i0brfbfmbsb644k
ptj8dr6ughomcut7nus15sh1a9
_1h2u4a9r01g69fdyijlec2r1wcdwjgg
_hcclwdwurdpu15oa3q0p9qnhsmz334n
_n55turh3eli6u6vey4n9x9tp7rpa8bl
brfqmb6q6tm5tby78rmvgprpdghk3jnf
q665mfsh7vy106mwvxgw2fry1tt7mc8r
qkvhw6xtcf77fz4xkq81h75rpb0ws0tr
dropbox-domain-verification=nfxk5s331hym
apple-domain-verification=IFbG8GNo1LMAFWVc
docusign=3d8fbf3d-d176-4b88-b961-e2743b9c9161
spf2.0/pra include:_auth.messagegears.net -all
Validity-DomainVerification=M7anjkdLSIe279_lLHGI129qQ=
miro-verification=d36744c01c72c4c0e036eacc18ffe55264b3bf81
facebook-domain-verification=kj7l4cwqftpopbeord2swqwepbsp4o
mixpanel-domain-verify=0e7d28f7-e5c2-4e51-b4f9-75be77f1b088
smartsheet-site-validation=70RJ3RRXAtFWl_DnBGzP43VTvl2SnOfZ
slack-domain-verification=7yM0PM3dCrAA1eDe4Q2iRnE8xEDQiAdjBXtszZbA
google-site-verification=2OCAEpwy7Vv5-nn1RtZi9G_Rke-cjJQDlxE5SCzcT30
apple-domain-verification=nBx_zynGhN20XhjOhYF49B7BD5JbZAuW2gbPVDPrVVk
_globalsign-domain-verification=Fw09cFhmPL_-Bfg6BV5_NkyDEkXJfmQd4uPViX560A
_globalsign-domain-verification=OYfE_CcZQWFlEEOrR5yVCfCtmiQrm0bBdyUAJyg3qE
_globalsign-domain-verification=cN-L6rAFen7Gz3tem3kDc7GS_3StXzPYkKEoy8lWi0
_globalsign-domain-verification=d54rFBsUag6X_qZKJTMGIUZQ3Mv9u5qhgcHJ_OWT-C
_globalsign-domain-verification=lQgTOD8dWU_8nHyzjHGJ39ncrI45HenuNvKKTckDhn
1wolbrqwoCObdxC9G93EA76bPvlWON5svPEymxv9VJX2piJNpB2fvTEx9AuBb+CeO4F+ti99rtfT9Fgg...
adobe-idp-site-verification=b41c23aaa74626ffffc55a59a6acf723e991ccd6604e9b4b6e21...
v=BIMI1; l=https://csvcus.homeaway.com/rsrcs/cdn-logos/4.5.0/sitename/vrbo/web/l...
atlassian-domain-verification=BoDCBNyHJzHh97Myx/Z4n3grU8sMEGR10Mi8CdpStC01PdMAuI...
SPF v=spf1 a:zgateway.zuora.com include:_netblocks.google.com include:spf.mandrillap...
CAALookup not available with standard resolver
Resolved in 14 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), 341 ms total
PASS
1 redirect(s), 341 ms total
Info::
Single redirect
Got: https://vrbo.com → https://www.vrbo.com/ (301)
Info::
WWW normalization redirect

https://vrbo.com

29 ms · HTTP/1.1

301

https://www.vrbo.com/

312 ms · HTTP/1.1 FINAL

#URLStatusTimeProtocolServer
1https://vrbo.com30129 msHTTP/1.1AkamaiGHost
2https://www.vrbo.com/429312 msHTTP/1.1istio-envoy

See the visual redirect chain in the HTTP Probe tab →

A+
URL Variants
www/non-www, trailing slash, HTTP→HTTPS
PASS
www/non-www, trailing slash, HTTP→HTTPS
Info::
HTTP correctly 301-redirects to HTTPS

www / non-www

429https://www.vrbo.com/
200https://vrbo.com/

HTTP → HTTPS

301http://vrbo.com/ https://www.vrbo.com/

Consistent

A+
Domain Intelligence
vrbo.com — via GoDaddy Corporate Domains, LLC, 30 years, 1 months old, hosted on Akamai
PASS
vrbo.com — via GoDaddy Corporate Domains, LLC, 30 years, 1 months old, hosted on Akamai
Info::
Domain registered until Aug 5, 2027 (1 years, 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: GoDaddy Corporate Domains, LLC
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: Akamai
Got: AS20940
Domain expiry

384 days

August 5, 2027

SSL certificate

190 days

Issued by DigiCert Inc

Domain age

30 years, 1 months

Registered July 30, 1996

DNSSEC

Not enabled

Protects against DNS spoofing

Hosting

Akamai

ASN AS20940

2.18.127.230

Registrar

GoDaddy Corporate Domains, LLC

Unlocked 10 NS records
Expiry timeline
Today
+1 year
Domain expiry SSL expiry Danger zone (≤30 days)
Recommended actions
  • Enable DNSSEC to protect visitors from DNS spoofing
  • Enable registrar lock (clientTransferProhibited) to block unauthorized domain transfers
Registrar GoDaddy Corporate Domains, LLC
Created July 30, 1996 (30 years, 1 months ago)
Expires August 5, 2027 (1 years, 3 months)
Last Updated December 1, 2025
Name Servers dns1.p09.nsone.net, dns2.p09.nsone.net, dns3.p09.nsone.net, dns4.p09.nsone.net, pdns1.ultradns.net, pdns2.ultradns.net, pdns3.ultradns.org, pdns4.ultradns.org, pdns5.ultradns.info, pdns6.ultradns.co.uk
DNSSEC Not enabled
Hosting
IP Address 2.18.127.230
ASN AS20940 (AKAMAI-ASN1, NL)
Provider Akamai
Data source: rdap (0.7s)

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 25 ms — DNS, TCP, TLS, TTFB, content transfer breakdown
PASS
DNS Lookup DNS Lookup — time to resolve the domain name to an IP address.
9 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.
4 ms
Time to First Byte Time to First Byte — how long the server takes to respond with the first byte of data.
26 ms
Total Time Total request time from DNS lookup through full response.
26 ms

Connection waterfall

DNS Lookup 9 ms TCP Connect 1 ms TLS Handshake 4 ms Server Processing 11 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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