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https://icloud.com

Infrastructure

· 9 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.
SCORE
93
GRADE
A
FIX
1
REVIEW
2
PASS
6
INFO
0
Probed from New York, United Stated
301 Moved Permanently
Checks
9
6 PASS 2 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
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.icloud.com/
200https://icloud.com/

Inconsistent — duplicate content risk

HTTP → HTTPS

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

Consistent

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

Certificate validity

62
days left
0d 30d 60d 90d+

Recommended actions

  • 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
1 A records, 4 ms lookup
PASS
1 A records, 4 ms lookup
Info::
Resolves to 1 IPv4 address(es)
Got: 17.253.144.10
Info::
Single A record — no DNS redundancy
Multiple A records provide failover if one server goes down.
Info::
Has 1 IPv6 (AAAA) record(s)
Got: 2620:149:af0::10
Info::
4 nameserver(s) configured
Got: a.ns.apple.com, b.ns.apple.com, c.ns.apple.com, d.ns.apple.com
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: 4 ms
Got: 4 ms
A17.253.144.10
AAAA2620:149:af0::10
CNAME—
NSa.ns.apple.com, b.ns.apple.com, c.ns.apple.com, d.ns.apple.com
MX
10 mx02.mail.icloud.com
10 mx01.mail.icloud.com
TXT
google-site-verification=Ik3jMkCjHnUgyIoFR0Kw74srr0H5ynFmUk8fyY1uBck
google-site-verification=knAEOH4QxR29I4gjRkpkvmUmP2AA7WrDk8Kq0wu9g9o
SPF v=spf1 ip4:17.41.0.0/16 ip4:17.58.0.0/16 ip4:17.142.0.0/15 ip4:17.57.155.0/24 ip...
CAALookup not available with standard resolver
Resolved in 4 ms

Multiple A records provide failover if one server goes down.

Why this matters

Single A record means a single point of failure — if that IP goes down, your site is unreachable until DNS TTL expires.

Learn more ▾

Add multiple A records for round-robin failover, or use a managed DNS provider with health-checked failover (Route 53, Cloudflare, NS1). Short TTL (60-300s) lets clients recover faster on outages.

Source: SRE practice / DNS architecture

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), 19 ms total
PASS
1 redirect(s), 19 ms total
Info::
Single redirect
Got: https://icloud.com → https://www.icloud.com/ (301)
Info::
WWW normalization redirect

https://icloud.com

8 ms · HTTP/1.1

301

https://www.icloud.com/

10 ms · HTTP/1.1 FINAL

#URLStatusTimeProtocolServer
1https://icloud.com3018 msHTTP/1.1AppleHttpServer/a3fb6e96e80a
2https://www.icloud.com/20010 msHTTP/1.1AppleHttpServer/4f9dd1f386f0

See the visual redirect chain in the HTTP Probe tab →

A+
IPv6 Readiness
IPv6 reachable (1 ms)
PASS
IPv6 reachable (1 ms)
Info::
IPv6 is configured and reachable at 2620:149:af0::10
Got: 1 ms connect
IPv6 Ready
AAAA Records 2620:149:af0::10 Connection Reachable (1 ms)
A+
Crawlability
robots.txt present, sitemap with 41 URLs
PASS
robots.txt present, sitemap with 41 URLs
Info::
robots.txt is present
Got: 1221 bytes
Info::
sitemap.xml is present
Info::
sitemap.xml is valid XML
Info::
sitemap.xml contains 41 entries
Info::
Sitemap index with 41 child sitemaps
Info::
robots.txt references sitemap
robots.txt 200 OK
Size 1221 B Sitemaps referenced 1 User-agents *, Googlebot, facebookexternalhit Blocking No — crawling allowed

Sitemap: https://www.icloud.com/sitemap.xml

User-agent: *

Disallow: /unsupported_browser
Disallow: /unsupported_mobile
Disallow: /enable_cookies
Disallow: /maintenance
Disallow: /not_found
Disallow: /unavailable
Disallow: /attachment/
Disallow: /download/
Disallow: /invites/
Disallow: /iw/
Disallow: /bookmarks_extension/
Disallow: /family_sharing/
Disallow: /calendar/eventreply/
Disallow: /fmf_getting_started/
Disallow: /fmf_location_update/
Disallow: /fmf_location_update_unsubscribe_undo/
Disallow: /fmf_unsubscribe/
Disallow: /fmf_unsubscribe_error/
Disallow: /fmf_unsubscribe_success/
Disallow: /fmf_unsubscribe_undo/
Disallow: /fmf_unsupported_device/
Disallow: /photos_get_started/
Disallow: /sharedalbum_unsubscribe/
Disallow: /sharedalbum_unsubscribe_error/
Disallow: /sharedalbum_unsubscribe_undo/
Disallow: /sharedalbum_unsupported_device/
Disallow: /photostream_unsubscribe/
Disallow: /iclouddrive/
Disallow: /notes/
Disallow: /photos/
Disallow: /reminders/
Disallow: /share/
Disallow: /pages/
Disallow: /numbers/
Disallow: /keynote/
Disallow: /keynote-live/
Disallow: /sharedalbum/
Disallow: /ca/ics/

User-agent: Googlebot
Allow: /

User-agent: facebookexternalhit
Allow: /invites/
Allow: /opengraph/
sitemap.xml 200 OK
Type Sitemap Index URLs 41 entries Valid XML Yes
Child Sitemaps:
A+
Domain Intelligence
icloud.com — via Nom-iq Ltd. dba COM LAUDE, 27 years, 7 months old
PASS
icloud.com — via Nom-iq Ltd. dba COM LAUDE, 27 years, 7 months old
Info::
Domain registered until Jan 15, 2027 (9 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: Nom-iq Ltd. dba COM LAUDE
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

213 days

January 15, 2027

SSL certificate

62 days

Issued by Apple Inc.

Domain age

27 years, 7 months

Registered January 15, 1999

DNSSEC

Not enabled

Protects against DNS spoofing

Hosting

Unknown

2620:149:af0::10

Registrar

Nom-iq Ltd. dba COM LAUDE

Unlocked 4 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 Nom-iq Ltd. dba COM LAUDE
Created January 15, 1999 (27 years, 7 months ago)
Expires January 15, 2027 (9 months)
Last Updated January 10, 2026
Name Servers a.ns.apple.com, b.ns.apple.com, c.ns.apple.com, d.ns.apple.com
DNSSEC Not enabled
Hosting
IP Address 2620:149:af0::10
Data source: rdap (0.0s)

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

Connection waterfall

DNS Lookup 4 ms TCP Connect 1 ms TLS Handshake 12 ms Server Processing 4 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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