Infrastructure - https://citrix.com BeaverCheck Audit

F

IPv6 Readiness

Action

IPv6 records exist but unreachable

FIX

IPv6 records exist but unreachable

IPv6 DNS records exist but server is not reachable

Having AAAA records but an unreachable server is worse than no AAAA — clients may experience delays before falling back to IPv4.

Got: 2001:4868:10c:3::15

IPv6 connection error

Got: dial tcp6 [2001:4868:10c:3::15]:443: i/o timeout

IPv6 Misconfigured

AAAA Records 2001:4868:10c:3::15 Connection UNREACHABLE

Having AAAA records but an unreachable server is worse than no AAAA — clients may experience delays before falling back to IPv4.

Why this matters

Advertising IPv6 (AAAA records) without a reachable server means IPv6-preferring clients silently fail every connection.

Learn more ▾

Modern browsers prefer IPv6 if AAAA exists (Happy Eyeballs algorithm). If the IPv6 server isn't reachable, browsers fall back to IPv4 — but with seconds of added latency per request. Either fix IPv6 reachability or remove the AAAA records.

Source: RFC 8305 (Happy Eyeballs)

D

CDN & Delivery

Action

No CDN detected

FIX

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), 1020 ms total

REVIEW

1 redirect(s), 1020 ms total

Single redirect

Got: https://citrix.com → https://www.citrix.com/ (301)

WWW normalization redirect

Redirect overhead: 1020 ms total

Got: 1020 ms

https://citrix.com

967 ms · HTTP/1.1

301

https://www.citrix.com/

53 ms · HTTP/1.1 FINAL

#	URL	Status	Time	Protocol	Server
1	https://citrix.com	301	967 ms	HTTP/1.1	nginx/1.21.0
2	https://www.citrix.com/	200	53 ms	HTTP/1.1	Apache

See the visual redirect chain in the HTTP Probe tab →

B

URL Variants

www/non-www, trailing slash, HTTP→HTTPS

REVIEW

www/non-www, trailing slash, HTTP→HTTPS

Both www and non-www versions serve content

Got: Both variants return 200 Expected: One variant 301-redirects to the other

HTTP correctly 301-redirects to HTTPS

www / non-www

200https://www.citrix.com/

200https://citrix.com/

Inconsistent — duplicate content risk

HTTP → HTTPS

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

Consistent

B

HTTP Probe Timing

Total 1025 ms — DNS, TCP, TLS, TTFB, content transfer breakdown

REVIEW

DNS Lookup

3 ms

TCP Connect

255 ms

TLS Handshake

512 ms

Time to First Byte

1.03 s

Total Time

1.03 s

Connection waterfall

DNS Lookup 3 ms TCP Connect 255 ms TLS Handshake 512 ms Server Processing 255 ms Content Transfer 0 ms

B

TLS Certificate Expiry & Recommendations

105 days until leaf cert expires — 4 issues to address

REVIEW

Certificate validity

105

days left

0d 30d 60d 90d+

Recommended actions

Prefer TLS 1.3 — TLS 1.2 is acceptable but TLS 1.3 removes RSA key exchange and improves latency
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

1 A records, 10 ms lookup

PASS

1 A records, 10 ms lookup

Resolves to 1 IPv4 address(es)

Got: 54.86.126.30

Single A record — no DNS redundancy

Multiple A records provide failover if one server goes down.

Has 1 IPv6 (AAAA) record(s)

Got: 2001:4868:10c:3::15

2 nameserver(s) configured

Got: nick.ns.cloudflare.com, nucum.ns.cloudflare.com

1 mail exchanger(s) configured

CAA records not checked

CAA record lookup requires a specialized DNS resolver. This check will be available in a future update.

SPF record present in TXT

DNS resolution time: 10 ms

Got: 10 ms

A	54.86.126.30
AAAA	2001:4868:10c:3::15
CNAME	—
NS	nick.ns.cloudflare.com, nucum.ns.cloudflare.com
MX	10 citrix-com.mail.protection.outlook.com
TXT	2t6gy0q499y96q28b0z5mnhtlks21rdd 3t5bM076VhqoBQm0/iivRXpZWa6LpjLD8EFZCibjtEkr/dxH+cgwn0DQdbO20cYlWA36lpfLCHuWT/Zn... 6e27d61c798a415a9254eedf47663922 Dynatrace-site-verification=32879264-2121-4161-a859-b13d10bb2502__duiqao3ktk2ins... Dynatrace-site-verification=710e7769-2992-45d3-a823-7e0226503a22__12l0u0ber39sb0... MS=36A460148583A60833119892ABAB4079FDF86E47 MS=ms54920430 MS=ms68893011 _5vjloo5rruthg6a1s7a57tv0zc0c94g _7lgmmwvxfs1icnbx1juhqfzsv71v634 _d6nbs1s3970i4oq5co9s131qoy6sb4k _glr6aa90jm59t3ej0zsk6aso27xgrka _j1mb27jibc18zjp1p1vrhihsiwaoi5g _o3skw3we74rpkyulzn53mwku7o2w56n _thd3wsj9d2fqawbcdgzuuc7o7bi1h2i adobe-idp-site-verification=013ec935de02014472e246efd3805b6d350feb7a6f13449b6be6... adobe-idp-site-verification=b88397f8e98f219f8160f9bdb854fa0695a0c3efab9c22925369... amazonses:E7SQiLGGpJUHZpsneQqzDqmNKue1IEVZdb1rENEi/Dg= apple-domain-verification=ET6dk0ADDepEVntW atlassian-domain-verification=ShopL09th5Q/UhA16zCVT436T8sB4PJ/vvlRxTvwfwYrGAUvBZ... atlassian-domain-verification=k6qJjBktGNUCqv7cL24iXYl3PRAIKerh6bZc8aqVCbAk2eb0ic... atlassian-domain-verification=pM2zMVF3ilinGRzSJaFrifVDwKNfCc8YKepaMnFRG2pL7hZDOf... atlassian-sending-domain-verification=8e4f414f-ebd4-4bb2-8579-7c28a5ae7a66 canva-site-verification=mBJwllbVUompoPhUPgRwwg docker-verification=c8b61426-355f-406c-848d-a9d0185d3948 drift-domain-verification=5edf4923a7503b0a6fac7ebf6bc74428e5188c6ac6005dcaaab5ef... drift-domain-verification=c286c113164c090e2f69012c3e8010164da9e5978fa3a34a5f0258... dtm-domain-verification=UphS5F_eOHcz2Vh0XMWL2vwxZQ_wJZV90sGqbxWX9Ms fastly-domain-delegation-fddelt741634-2-21-24 google-site-verification=3ecYNAuVuxsdnmhq3Ad62yUTjNyu_zVw2Nis0h2qyzI google-site-verification=ETMql6HI7j-2wO1XJTazSA4dUcdaAW-Sj_o-bKOp-dQ google-site-verification=XIIa__E6cYK3Xakkc5hsDrkK5N5mEUUnJx65DOC_7i0 google-site-verification=bSH0MyYgC2I8yW9EHos2RQz-prfZMhWCRowUKu3pgCM google-site-verification=c7rEgrYXVnflD00b7SleDHUN2kjZtD-OlQ4DIIvJdwg google-site-verification=cGG0r71gpLRXk62j29Uiv86YPEKnvVKk8qlHYkRDt-8 google-site-verification=dDdG0qHwFD3ttQ-m4JRgcRHIHi5TXeyZWSABt9-_y-I google-site-verification=jXyXsHF5vk-RhTtsKHf2YiDoNTVmQhneJbrTsfJSBcA google-site-verification=lEvhlUkj6N0fViKKFL3vVrn32UD5QgF6K_ra8o2GfmY google-site-verification=qbd0uPFSUTQ3x_NNe-XCYTEdJcTB6deO3en9M7aLHdY google-site-verification=s3thrxQvgyMbkT53Ccnx8Jkfp8spWJoF9nQ2TfZuLSQ intersight=fbbc4e248c148b5d80a326da53022fdfcded163999ceaec6165a3973462a8afb logmein-verification-code=34ca51fb-c701-459e-b60c-d266aa0b06ef logmein-verification-code=c0b03e33-2d52-49d5-aef5-3a76dc891290 lucid-verification=qe15rgfgj93635Klpky491 miro-verification=b7c7869613661d321b9662b83c6463432f5e9c40 mongodb-site-verification=SamQU8vXenVX25pDkz4E8A71b38JNKqg mongodb-site-verification=asLRxyuY2hcOZHP9AEfjFett97gNq0TW mongodb-site-verification=jBiX7xzjOVLN7kwQfpqZ8kfQjB3MxXFt mpsfzpwyj351cdlsfxq70rqlc1b3881b onetrust-domain-verification=26961e9a8c964a7e8ac78900461bc12c pexip-ms-tenant-domain-verification=e80b8b84-73b5-4b34-9123-c60ecb37a68a t2jcU7Uk003UBKV3zfl0 SPF v=spf1 include:spf.citrix.com include:spf2.citrix.com include:_spf.google.com in... wiz-domain-verification=7c47753d31ab194423d6ca83573012e4140e16cd5539e71a3fa46156... wrike-verification=NDYxMTI0MTo0YWM2ZDkyMjhiNzFjYjVkYTJkNWUyOWZlOGZmNTZmZDFlNzRkZ... wrike-verification=NTAxMzcxNDpjMjRkNzkxNzZkNjFhNzVmZDBlNjczZDhkYTc4MDhjNmM0Y2QzM... xdzkgym5phfnptplvzjm88vym4mhvpp3
CAA	Lookup not available with standard resolver

Resolved in 10 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+

Crawlability

robots.txt present, sitemap with 2 URLs

PASS

robots.txt present, sitemap with 2 URLs

robots.txt is present

Got: 1015 bytes

sitemap.xml is present

sitemap.xml is valid XML

sitemap.xml contains 2 entries

Sitemap index with 2 child sitemaps

robots.txt references sitemap

robots.txt 200 OK

Size 1015 B Sitemaps referenced 2 User-agents * Blocking No — crawling allowed

User-agent: *

Sitemap: https://www.citrix.com/sitemap-index.xml

Sitemap: https://www.citrix.com/blogs/sitemap.xml

Disallow: /go/private

Disallow: /cgi-bin/

Disallow: /account

Disallow: /partnercentral

Disallow: /content/campaigns

Disallow: /404.html

Disallow: /no_access

Disallow: /welcome/embargoed-country.html

Disallow: /toolbox-outage

Disallow: /*.print.html

Disallow: /glossary/akamaitest.html

Disallow: /blogs/category

Disallow: /blogs/product

Disallow: /blogs/author

Disallow: /blogs/tag

Disallow: /static

Disallow: /blogs/2006/

Disallow: /blogs/2007/

Disallow: /blogs/2008/

Disallow: /blogs/2009/

Disallow: /blogs/2010/

Disallow: /blogs/2011/

Disallow: /*/go/private

Disallow: /*/cgi-bin/

Disallow: /*/account

Disallow: /*/partnercentral

Disallow: /*/content/campaigns

Disallow: /*/404.html

Disallow: /*/no_access

Disallow: /*/welcome/embargoed-country.html

Disallow: /*/toolbox-outage

Disallow: /*/*.print.html

Disallow: /*/glossary/akamaitest.html

Disallow: /*/static

sitemap.xml 200 OK

Type Sitemap Index URLs 2 entries Valid XML Yes

Child Sitemaps:

A+

Domain Intelligence

citrix.com — via MarkMonitor Inc., 32 years, 2 months old

PASS

citrix.com — via MarkMonitor Inc., 32 years, 2 months old

Domain registered until Jul 21, 2027 (1 years, 3 months remaining)

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.

Registrar: MarkMonitor Inc.

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

400 days

July 21, 2027

SSL certificate

105 days

Issued by DigiCert Inc

Domain age

32 years, 2 months

Registered July 22, 1994

DNSSEC

Not enabled

Protects against DNS spoofing

Hosting

Unknown

2001:4868:10c:3::15

Registrar

MarkMonitor Inc.

Unlocked 2 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 MarkMonitor Inc.

Created July 22, 1994 (32 years, 2 months ago)

Expires July 21, 2027 (1 years, 3 months)

Last Updated January 20, 2026

Name Servers nick.ns.cloudflare.com, nucum.ns.cloudflare.com

DNSSEC Not enabled

Hosting

IP Address 2001:4868:10c:3::15

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