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Infrastructure

· 9 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.
SCORE
82
GRADE
B
FIX
1
REVIEW
4
PASS
4
INFO
0
Probed from Santa Clara, United States
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.

B
Redirect Chain
1 redirect(s), 1386 ms total
REVIEW
1 redirect(s), 1386 ms total
Info::
Single redirect
Got: https://kaspersky.com → https://www.kaspersky.com/ (301)
Info::
WWW normalization redirect
Warning::
Redirect overhead: 1386 ms total
Got: 1386 ms

https://kaspersky.com

462 ms · HTTP/1.1

301

https://www.kaspersky.com/

925 ms · HTTP/1.1 FINAL

#URLStatusTimeProtocolServer
1https://kaspersky.com301462 msHTTP/1.1Angie
2https://www.kaspersky.com/200925 msHTTP/1.1Angie

See the visual redirect chain in the HTTP Probe tab →

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
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.kaspersky.com/
200https://kaspersky.com/

Inconsistent — duplicate content risk

HTTP → HTTPS

301http://kaspersky.com/ → https://www.kaspersky.com

Consistent

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

Certificate validity

309
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
A
DNS Records
2 A records, 361 ms lookup
PASS
2 A records, 361 ms lookup
Info::
Resolves to 2 IPv4 address(es)
Got: 185.85.15.46, 185.85.15.47
Info::
No IPv6 (AAAA) records
Info::
3 nameserver(s) configured
Got: ns2.kasperskylabs.com, ns1.kasperskylabs.net, ns3.kasperskylabs.org
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
Warning::
DNS resolution is slow (361 ms)
Slow DNS adds latency to every page load. Consider a faster DNS provider.
Got: 361 ms
A185.85.15.46, 185.85.15.47
AAAA—
CNAME—
NSns2.kasperskylabs.com, ns1.kasperskylabs.net, ns3.kasperskylabs.org
MX
10 mx9.kaspersky-labs.com
10 mx13.kaspersky-labs.com
10 mx11.kaspersky-labs.com
10 mx12.kaspersky-labs.com
10 mx14.kaspersky-labs.com
TXT
docusign=f75708ee-9d70-4f4d-893c-1ee40ff118f0
google-site-verification=OLBvaPDKYfdEIBIiJXCymrIyqYKlkRy42lSNjhuKuIg
google-site-verification=vCElIgNX22UwW8HNwG3n-C6G2esSf64VCR-7786kf5o
OSSRH-65954
MS=ms35645165
google-site-verification=rWrOiumE7oP-K4v1grTIJNNCYHTqJYeF-yw3FzLhoxw
MS=ms46209404
wegopro-domain-verification=03bb157f2ad7c49a6110be2cd121344a95237dc644907621b1d3...
samsung-domain-verification=3c4930b9-661f-4619-ab6e-7daa8739f5b0
asap-site-verification-6e19c2d7-0382-4a68-bc2c-068a778c7703
docusign=bb1dd25e-cca1-4512-b170-2dca34aedd78
asap-site-verification-10df2a0b-bc79-4490-8744-4b0d7aded221
_globalsign-domain-verification=9ceoIHmW384KoN5_E0eN6n8iV0mHa8pIQcWokHCvP4
OSSRH-51398
google-site-verification=geaob3FW3kWbD4GOuWvvnIr6DdMCk-iztUNHfDXsjZw
asap-site-verification-7825d720-a31b-4bb7-bbbf-2e720e30498a
asap-site-verification-3571af96-ec91-4f83-817d-375fefc9f797
SPF v=spf1 include:_spf1.kaspersky.com include:_spf2.kaspersky.com include:_spf3.kas...
Bm+dQwu+u4EWDmvvW25oQ2SoOjxFlFGqpX9leEWzO1U=
zoho-verification=zb22959436.zmverify.zoho.eu
_globalsign-domain-verification=A5ulEvxtVtzWSqz9gRaevA1pjDZdYCI6c4x6fhh5Iv
_globalsign-domain-verification=rRXjtSOoV0bmUcuAXIUcIz4k8Rya5FC_gqPVzCAc7T
58wgdlm2jdsm9ngvy7nkjykrtpm944zn
gradle-verification=DM91VVUEK70R6HG86NOOGSMSE5LGT
webexdomainverification.=5f4c1131-bad6-4890-9c8d-7fcd1696c2a6
_globalsign-domain-verification=2u79ZSgihDToZ6kqOddBcAMraHjL8E1U7JxvkA1i4j
_globalsign-domain-verification=35ZiYPEmsycwuTaBEPwZmslWybIClBPdB8-j7Gf9Lh
_globalsign-domain-verification=mrfx5FH20CBHLHUsPWNj5lVSZ5j1IidGOHMrctSE0m
_globalsign-domain-verification=uW9o1iQK8Ok_csHh_6oKL71Mh-7vNkNLeaFPOMM32e
_globalsign-domain-verification=NHWHPlhiQ614y3Pu1ZsxFMa649uLmbU8v9nRAN2ze9
wegopro-domain-verification=14d441eace421b40947e941f333e077d21cf0a95284e335218ce...
CAALookup not available with standard resolver
Resolved in 361 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.

Slow DNS adds latency to every page load. Consider a faster DNS provider.

Why this matters

DNS resolution is slow — anycast DNS providers (Cloudflare, Route 53) typically resolve <50ms globally.

Source: DNS performance benchmarks

A+
Crawlability
robots.txt present, sitemap with 5 URLs
PASS
robots.txt present, sitemap with 5 URLs
Info::
robots.txt is present
Got: 1875 bytes
Info::
sitemap.xml is present
Info::
sitemap.xml is valid XML
Info::
sitemap.xml contains 5 entries
Info::
Sitemap index with 5 child sitemaps
Info::
robots.txt references sitemap
robots.txt 200 OK
Size 1875 B Sitemaps referenced 2 User-agents CCBot, YouBot, OAI-SearchBot, DeepSeekBot, *, GPTBot, ClaudeBot, MistralAI-User, ChatGPT-User, claude-web, Claude-User, Diffbot, PerplexityBot, Perplexity-User, Google-Extended, Applebot, Applebot-Extended, DuckAssistBot Blocking No — crawling allowed
Sitemap: https://www.kaspersky.com/sitemap.xml
Sitemap: https://www.kaspersky.com/blog/sitemap.xml

User-agent: *
Disallow: /acq/
Disallow: /search
Disallow: /rss-feeds
Disallow: /components/
Disallow: /b2c-tools/
Disallow: /entp/
Disallow: /feeds/
Disallow: /lp/
Disallow: /_svc/
Disallow: /embed/
Disallow: /?slow=*
Disallow: /n/
Disallow: /wiki-section/feedback
Disallow: /templates/site-header_main-nav.html
Disallow: /templates/site-header_mega-menu__b2c.html
Disallow: /templates/site-header_mega-menu__res.html
Disallow: /resources/template/
Disallow: /renewal-center/
Disallow: /?serial=*
Disallow: *.json
Disallow: */thank-you
Disallow: /Date

Allow: /.well-known/amphtml/apikey.pub
Allow: /renewal-center/home
Allow: /renewal-center/business

Clean-param: _ga&source_caller&c&shortlink&reseller&erid&downlink&cid&redef&icid&referer1&referer2&slow&campaign&bvrrp&ga_&omreferrer&attachment_id&bid&pid&data1&sort&pn&pcn&slowsnav&sn&csn&time&id&chapter&partnerid&qid&acity&cregion&blocknum2&openform&thru&inp&THRU&ac&act-item&kaspr&etext


# ---- OPENAI ----
User-agent: OAI-SearchBot
Allow: /

# ---- ChatGPT ---- 
User-agent: ChatGPT-User
Allow: /
User-agent: GPTBot
Allow: /                     

# ---- Claude ----
User-agent: ClaudeBot         
Allow: /
User-agent: claude-web       
Allow: /
User-agent: Claude-User
Allow: /

# ---- PERPLEXITY ----
User-agent: PerplexityBot     
Allow: /
User-agent: Perplexity-User   
Allow: /

# ---- GOOGLE (Gemini) ----
User-agent: Google-Extended
Allow: /

# ---- APPLE ----
User-agent: Applebot
Allow: /
User-agent: Applebot-Extended
Allow: /

# ---- DUCKDUCKGO ----
User-agent: DuckAssistBot
Allow: /

# ---- COMMON CRAWL ----
User-agent: CCBot
Allow: /
User-agent: Diffbot
Allow: /

# ---- Others ----
User-agent: MistralAI-User 
Allow: /
User-agent: YouBot
Allow: /

# ---- Deepseek ----
User-agent: DeepSeekBot
Allow: /
sitemap.xml 200 OK
Type Sitemap Index URLs 5 entries Valid XML Yes
Child Sitemaps:
A+
Domain Intelligence
kaspersky.com — via Regional Network Information Center, JSC dba RU-CENTER, 28 years, 11 months old, hosted on KL-EXT, CH
PASS
kaspersky.com — via Regional Network Information Center, JSC dba RU-CENTER, 28 years, 11 months old, hosted on KL-EXT, CH
Info::
Domain registered until Oct 8, 2026 (5 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: Regional Network Information Center, JSC dba RU-CENTER
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: KL-EXT, CH
Got: AS200107
Domain expiry

114 days

October 8, 2026

SSL certificate

309 days

Issued by DigiCert Inc

Domain age

28 years, 11 months

Registered October 9, 1997

DNSSEC

Not enabled

Protects against DNS spoofing

Hosting

KL-EXT, CH

ASN AS200107

185.85.15.47

Registrar

Regional Network Information Center, JSC dba RU-CENTER

Unlocked 3 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 Regional Network Information Center, JSC dba RU-CENTER
Created October 9, 1997 (28 years, 11 months ago)
Expires October 8, 2026 (5 months)
Last Updated October 7, 2025
Name Servers ns1.kasperskylabs.net, ns2.kasperskylabs.com, ns3.kasperskylabs.org
DNSSEC Not enabled
Hosting
IP Address 185.85.15.47
ASN AS200107 (KL-EXT, CH)
Provider KL-EXT, CH
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 461 ms — DNS, TCP, TLS, TTFB, content transfer breakdown
PASS
DNS Lookup DNS Lookup — time to resolve the domain name to an IP address.
5 ms
TCP Connect TCP Connect — time to establish a TCP connection to the server.
152 ms
TLS Handshake TLS Handshake — time to complete the HTTPS encryption handshake.
153 ms
Time to First Byte Time to First Byte — how long the server takes to respond with the first byte of data.
461 ms
Total Time Total request time from DNS lookup through full response.
461 ms

Connection waterfall

DNS Lookup 5 ms TCP Connect 152 ms TLS Handshake 153 ms Server Processing 152 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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