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https://intercontinental.com

Infrastructure

· 9 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.
SCORE
91
GRADE
A
FIX
1
REVIEW
3
PASS
5
INFO
0
Probed from Madrid, Spain
403 Forbidden
Checks
9
5 PASS 3 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.

B
Crawlability
no robots.txt, no sitemap
REVIEW
no robots.txt, no sitemap
Info::
No robots.txt found
robots.txt is optional but recommended. It tells search engine crawlers which pages to index.
Info::
No sitemap.xml found
A sitemap helps search engines discover and index your pages more efficiently.

robots.txt is optional but recommended. It tells search engine crawlers which pages to index.

Why this matters

No robots.txt — crawlers fetch /robots.txt and get 404; not breaking but means default crawl behavior with no directives or sitemap reference.

Learn more

A minimal robots.txt with `User-agent: * / Allow: / / Sitemap: https://example.com/sitemap.xml` covers the basics. Without it, crawlers behave fine but lose the sitemap signal and can't be selectively blocked from crawl-traps.

Source: robotstxt.org

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

robots.txt No robots.txt found

No robots.txt found

This is fine for most sites — a missing robots.txt allows all crawling by default.

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::
HTTP version does not redirect to HTTPS
Got: HTTP 403 Expected: 301 redirect to HTTPS

www / non-www

403https://www.intercontinental.com/
200https://intercontinental.com/

HTTP → HTTPS

403http://intercontinental.com/

HTTP version does not redirect to HTTPS

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

Certificate validity

184
days left
0d 30d 60d 90d+

Recommended actions

  • Extend HSTS max-age to at least 31536000 (1 year) to meet the preload list criteria
  • 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, 51 ms lookup
PASS
2 A records, 51 ms lookup
Info::
Resolves to 2 IPv4 address(es)
Got: 95.100.86.225, 95.100.86.213
Info::
Has 2 IPv6 (AAAA) record(s)
Got: 2a02:26f0:2380:19::17d3:f5f, 2a02:26f0:2380:19::17d3:f5d
Info::
6 nameserver(s) configured
Got: a5-65.akam.net, a1-131.akam.net, a4-64.akam.net, a9-66.akam.net, a16-66.akam.net, a26-67.akam.net
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: 51 ms
Got: 51 ms
A95.100.86.225, 95.100.86.213
AAAA2a02:26f0:2380:19::17d3:f5f, 2a02:26f0:2380:19::17d3:f5d
CNAME
NSa5-65.akam.net, a1-131.akam.net, a4-64.akam.net, a9-66.akam.net, a16-66.akam.net, a26-67.akam.net
MX
0 mxa-0036c501.gslb.pphosted.com
0 mxb-0036c501.gslb.pphosted.com
TXT
google-site-verification=qgqrs9kB2I5-lK5ojr9hHNZPyULps3-2LEyRSgnD03Y
wpe-verification=interconmelb
24a901803aea7f6a91674ef1c86c827a
_o665o0rmufjqwbpiy3l4g5wq6fzn4o7
MS=ms67422158
facebook-domain-verification=nk623dmueapht7hpyfpa9pk2gu42j5
SPF v=spf1 include:_spf.google.com include:sendgrid.net ip4:74.112.64.20 ip4:74.112....
CAALookup not available with standard resolver
Resolved in 51 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
0 redirect(s), 17 ms total
PASS
0 redirect(s), 17 ms total

https://intercontinental.com

17 ms · HTTP/1.1 FINAL

#URLStatusTimeProtocolServer
1https://intercontinental.com40317 msHTTP/1.1
A+
IPv6 Readiness
IPv6 reachable (1 ms)
PASS
IPv6 reachable (1 ms)
Info::
IPv6 is configured and reachable at 2a02:26f0:2380:19::17d3:f5f, 2a02:26f0:2380:19::17d3:f5d
Got: 1 ms connect
IPv6 Ready
AAAA Records 2a02:26f0:2380:19::17d3:f5f, 2a02:26f0:2380:19::17d3:f5d Connection Reachable (1 ms)
A+
Domain Intelligence
intercontinental.com — via MarkMonitor Inc., 29 years, 1 months old
PASS
intercontinental.com — via MarkMonitor Inc., 29 years, 1 months old
Info::
Domain registered until Jul 29, 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.
Domain expiry

16 days

July 29, 2026

SSL certificate

184 days

Issued by DigiCert Inc

Domain age

29 years, 1 months

Registered July 30, 1997

DNSSEC

Not enabled

Protects against DNS spoofing

Hosting

Unknown

2a02:26f0:2380:19::17d3:f5d

Registrar

MarkMonitor Inc.

Unlocked 6 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 July 30, 1997 (29 years, 1 months ago)
Expires July 29, 2026 (3 months)
Last Updated June 27, 2025
Name Servers a1-131.akam.net, a16-66.akam.net, a26-67.akam.net, a28-64.akam.net, a5-65.akam.net, a9-66.akam.net
DNSSEC Not enabled
Hosting
IP Address 2a02:26f0:2380:19::17d3:f5d
Data source: rdap (0.1s)

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 206 ms — DNS, TCP, TLS, TTFB, content transfer breakdown
PASS
DNS Lookup DNS Lookup — time to resolve the domain name to an IP address.
52 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.
3 ms
Time to First Byte Time to First Byte — how long the server takes to respond with the first byte of data.
206 ms
Total Time Total request time from DNS lookup through full response.
206 ms

Connection waterfall

DNS Lookup 52 ms TCP Connect 1 ms TLS Handshake 3 ms Server Processing 150 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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