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Infrastructure

· 9 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.
SCORE
95
GRADE
A
FIX
1
REVIEW
2
PASS
6
INFO
0
Probed from Madrid, Spain
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
Redirect Chain
2 redirect(s), 154 ms total
REVIEW
2 redirect(s), 154 ms total
Warning::
2 redirects before reaching final URL
Each redirect adds latency. Try to minimize the chain to 1 hop.
Info::
WWW normalization redirect
Info::
Uses 302 (temporary) redirect
If permanent, use 301 instead.
Got: https://www.sophos.com/

https://sophos.com

31 ms · HTTP/1.1

301

https://www.sophos.com/

53 ms · HTTP/1.1

302

https://www.sophos.com/es-es

70 ms · HTTP/1.1 FINAL

#URLStatusTimeProtocolServer
1https://sophos.com30131 msHTTP/1.1
2https://www.sophos.com/30253 msHTTP/1.1
3https://www.sophos.com/es-es20070 msHTTP/1.1

See the visual redirect chain in the HTTP Probe tab →

Each redirect adds latency. Try to minimize the chain to 1 hop.

Why this matters

Redirect chain — each hop adds latency; combine into one redirect where possible.

Source: Google Search Central / web.dev

If permanent, use 301 instead.

Why this matters

302 (Found) is for genuinely temporary redirects — if this redirect is permanent, switch to 301 to preserve SEO equity.

Learn more ▾

Search engines treat 302 as temporary, keeping the original URL indexed and not transferring full link equity to the destination. Use 301 (Moved Permanently) for permanent redirects (HTTP→HTTPS, www-vs-non-www, URL restructures).

Source: Google Search Central

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

Certificate validity

39
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
2 A records, 79 ms lookup
PASS
2 A records, 79 ms lookup
Info::
Resolves to 2 IPv4 address(es)
Got: 23.211.15.161, 23.211.15.141
Info::
Has 2 IPv6 (AAAA) record(s)
Got: 2a02:26f0:e0::211:259b, 2a02:26f0:e0::211:2573
Info::
6 nameserver(s) configured
Got: a11-66.akam.net, a18-64.akam.net, a14-67.akam.net, a10-65.akam.net, a1-100.akam.net, a9-65.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: 79 ms
Got: 79 ms
A23.211.15.161, 23.211.15.141
AAAA2a02:26f0:e0::211:259b, 2a02:26f0:e0::211:2573
CNAME—
NSa11-66.akam.net, a18-64.akam.net, a14-67.akam.net, a10-65.akam.net, a1-100.akam.net, a9-65.akam.net
MX
10 mx-01-eu-west-1.prod.hydra.sophos.com
10 mx-02-eu-west-1.prod.hydra.sophos.com
TXT
z08yq9grj0sygqd4vq7mhgqgbmd7r6xd
SlL66Pe6+pzghTfp9TqupnOauqPcYMVnc2pdpFE/1Bc=
google-site-verification=UbmZT8AVCxe8ajII1pukSvwqRnCbDaTKJuXzpKACEao
/gbE6SOtgWszrbftvjWRktjABSHim5ssJdPQdJiUFLo=
8XnBlZqV5LM6S3WAyE4hFKvJhkx9pb52O9HKScFHlGw=
sophos-domain-verification=3982f63bedcff7ccd4ef51ba54d39b4d14ae1c3a
drift-domain-verification=ac53b25173908b0a36aeac6b99ddc02b6f606859e2b6b8878c0d8f...
aline-domain-verification-1j2324=omzScvZJaszchZh413GWALRdg
smartsheet-site-validation=zMtI30Z_7BcFJrKZw2iBeQtMCrTV-V76
vmware-cloud-verification-22c2ef74-7090-455a-a617-841a0f1f8d5b
atlassian-domain-verification=yGw28l7QRDvcaSLmkM/aMTlngetgzc7rNRrMFeA/iwxi6AoGLU...
miro-verification=27ceec0b31a177e34cf8d5befad732294ab707c1
drift-domain-verification=1190d60eec406b5bb9fbd5c0b991664c89480bf53d8586c85f47f6...
_globalsign-domain-verification=-GsNIbcFP3axstCFjRMjw2u_IsnDnkSTEagAhFdF_V
06x71m1wfychwzb068j6rw0vgt96pp8m
MS=ms20777252
1password-site-verification=QASQSNF7TZGBTLBYSIMHRRDUJY
6z6zg07kf5yqbgx9k28zgx7pbzyk4tqv
openai-domain-verification=dv-RuJLc7us6Nv0F8LDFDKAc7uw
drift-domain-verification=20e3140bc5cd2b4cdef1fd9f3ed9298e9e0d31747509233b49da41...
cursor-domain-verification-hrtcqr=rmEeK8UvFTDWoWCbPe4W48MjS
drift-domain-verification=244bf919d29f6e74ac0c52978f5cf28015cb7cb169f306a95a5ae1...
b1cab410c2cd4c1ba415ff35d5df0ee0
google-site-verification=A4IvAx3bsimlNuuaij7KW4YsWI65V04qIRDfyGsFSsI
_cbc-idp-site-verification-b51e45=363de791496d5b55ec143df32f41673e0017799ceee753...
cloudhealth=30a3e90e-bf54-4e23-8a07-50d20631d7c7
docker-verification=6e3a01d0-a79a-42dc-a6ef-8f5d1a5809e9
anthropic-domain-verification-6yf00s=Ye5rWegH81UZ1ONGj1gmTft8O
pendo-domain-verification=IkagvqgdNFxKHKUChcptstdLpx0
S0bXs6uppeiOgIHjU7++zYBrJdO/lto8F+lutV6shoM=
drift-domain-verification=49154060112759b8163b0b1d710afdc93baf7a1924c169c4f60769...
_f1a9kf91a5ksktt14czu26jj992sy70
openai-domain-verification=dv-ziQBcZtypxlBQk0anqgGA2kV
SPF v=spf1 redirect=sophos.com.spf.sophosdmarc.net
atlassian-sending-domain-verification=b1c8568f-2e3b-4c13-bbad-b0875980471a
nKB8VtcYTnBVg9VjdPOQFKkeyp6YxWb4YE8p3XZmDUE=
successfactors-site-verification=Yzk4ZmFhMmY4ZjU4NTgxMWE4Yjk0MTliN2Y1MjBiZTkzZjV...
drift-domain-verification=fc2b61befbd0e7d1ea38a099c21522e6c485b69c00e2ffa3cf0897...
sz0tpkq215zbcjsnrghfx0p3ksctty81
docusign=d6465c58-dca5-44f2-a22d-62be8d4e1549
drift-domain-verification=0146cf28092efe02d9b245bc034a49ee101121324faab085d4dc39...
google-site-verification=Oc8MKdnVS9zYeJAG_DhDTp4iqXaBhuyBzgYGK6KzHnM
censys-domain-verification=aV3Fk9juFo3K4z0zZqvVOtRY-bgyef_YRSODYMZP82xN
drift-domain-verification=19e95e7c5f04ec70ad60395ef64d1d5f0fd975f23bd3d60cb9b8fa...
drift-domain-verification=cf8ef47a8b657b331173804c5189d62dfed3eefb03f4144a1b4cbf...
drift-domain-verification=e20214575377f71bf2d2dfde7f181305a85e78cd4d298a62cc2751...
NI+GrCnazEEzN/8Sthq9Gsv1drLkK3CMmK8mgLop7FBCj1MBeZrJJYenxQDp9/soSLBrjL8zmvQmfc4t...
drift-domain-verification=33ee4934494487d5fd3103d23e43be36abe49fd4e594c3da6da4df...
yqSChZpEwgPNHna2bdAZhr6ASFb82MxruOD00tp0NEc=
apple-domain-verification=2Fy8bFXuDV8Wohcz
CAALookup not available with standard resolver
Resolved in 79 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+
IPv6 Readiness
IPv6 reachable (1 ms)
PASS
IPv6 reachable (1 ms)
Info::
IPv6 is configured and reachable at 2a02:26f0:e0::211:259b, 2a02:26f0:e0::211:2573
Got: 1 ms connect
IPv6 Ready
AAAA Records 2a02:26f0:e0::211:259b, 2a02:26f0:e0::211:2573 Connection Reachable (1 ms)
A+
Crawlability
robots.txt present, sitemap with 3815 URLs
PASS
robots.txt present, sitemap with 3815 URLs
Info::
robots.txt is present
Got: 1741 bytes
Info::
sitemap.xml is present
Info::
sitemap.xml is valid XML
Info::
sitemap.xml contains 3815 entries
Info::
robots.txt references sitemap
robots.txt 200 OK
Size 1741 B Sitemaps referenced 10 User-agents xAI-Bot, Amazonbot, AndiBot, ExaBot, PhindBot, YouBot, PetalBot, DeepSeekBot, Anthropic-ai, ClaudeBot, Bingbot, ChatGPT-User, Google-Extended, FirecrawlAgent, BingAI, BingPreview, CopilotBot, Googlebot, GPTBot, LlamaBot, PerplexityBot, OAI-SearchBot Blocking No — crawling allowed
# robots.txt for www.sophos.com (generated November 2025)

# Disallow internal or non-public endpoints (update these for content stack)
#User-agent: *
#Disallow: /admin/
#Disallow: /internal/
#Disallow: /private/
#Disallow: /error/

# Allow all other content, including documentation, downloads and product pages.
Allow: /

#  Allow the LLM policy file
Allow: https://www.sophos.com/llms.txt

# Sitemaps for supported locales
Sitemap: https://www.sophos.com/en-us/sitemap.xml
Sitemap: https://www.sophos.com/en-gb/sitemap.xml
Sitemap: https://www.sophos.com/de-de/sitemap.xml
Sitemap: https://www.sophos.com/es-es/sitemap.xml
Sitemap: https://www.sophos.com/it-it/sitemap.xml
Sitemap: https://www.sophos.com/fr-fr/sitemap.xml
Sitemap: https://www.sophos.com/ja-jp/sitemap.xml
Sitemap: https://www.sophos.com/pt-br/sitemap.xml
Sitemap: https://www.sophos.com/zh-cn/sitemap.xml

# video sitemap
Sitemap: https://www.sophos.com/video-sitemap.xml


# Allow AI Search and Agent Crawlers

User-agent: Anthropic-ai
Allow: /

User-agent: ClaudeBot
Allow: /

User-agent: Bingbot
Allow: /

User-agent: BingAI
Allow: /

User-agent: BingPreview
Allow: /

User-agent: ChatGPT-User
Allow: /

User-agent: CopilotBot
Allow: /

User-agent: Googlebot
Allow: /

User-agent: Google-Extended
Allow: /

User-agent: GPTBot
Allow: /

User-agent: LlamaBot
Allow: /

User-agent: OAI-SearchBot
Allow: /

User-agent: PerplexityBot
Allow: /

User-agent: xAI-Bot
Allow: /

User-agent: Amazonbot
Allow: /

User-agent: FirecrawlAgent 
Allow: / 

User-agent: AndiBot 
Allow: / 

User-agent: ExaBot 
Allow: / 

User-agent: PhindBot 
Allow: / 

User-agent: YouBot 
Allow: /

User-agent: PetalBot
Disallow: /

# Disallow specific LLM crawler
User-agent: DeepSeekBot
Disallow: /
sitemap.xml 200 OK
Type URL Set URLs 3815 entries Valid XML Yes
Sample URLs:
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

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

HTTP → HTTPS

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

Consistent

A+
Domain Intelligence
sophos.com — via Lexsynergy Limited, 31 years, 7 months old
PASS
sophos.com — via Lexsynergy Limited, 31 years, 7 months old
Info::
Domain registered until Feb 18, 2027 (10 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: Lexsynergy Limited
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

219 days

February 18, 2027

SSL certificate

39 days

Issued by Let's Encrypt

Domain age

31 years, 7 months

Registered February 17, 1995

DNSSEC

Not enabled

Protects against DNS spoofing

Hosting

Unknown

2a02:26f0:e0::211:2573

Registrar

Lexsynergy Limited

Unlocked 6 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 Lexsynergy Limited
Created February 17, 1995 (31 years, 7 months ago)
Expires February 18, 2027 (10 months)
Last Updated January 19, 2026
Name Servers a1-100.akam.net, a10-65.akam.net, a11-66.akam.net, a14-67.akam.net, a18-64.akam.net, a9-65.akam.net
DNSSEC Not enabled
Hosting
IP Address 2a02:26f0:e0::211:2573
Data source: rdap (0.2s)

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 48 ms — DNS, TCP, TLS, TTFB, content transfer breakdown
PASS
DNS Lookup DNS Lookup — time to resolve the domain name to an IP address.
30 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.
49 ms
Total Time Total request time from DNS lookup through full response.
49 ms

Connection waterfall

DNS Lookup 30 ms TCP Connect 1 ms TLS Handshake 4 ms Server Processing 14 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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