Infrastructure

· 9 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.

SCORE

GRADE

FIX

REVIEW

PASS

INFO

Probed from Singapore, Singapore

200 OK

Checks

6 PASS 3 REVIEW

DNS Records

Action

1 A records, 239 ms lookup

REVIEW

1 A records, 239 ms lookup

Resolves to 1 IPv4 address(es)

Got: 23.41.36.119

Single A record — no DNS redundancy

Multiple A records provide failover if one server goes down.

Has 2 IPv6 (AAAA) record(s)

Got: 2600:1413:5000:a88::b33, 2600:1413:5000:a85::b33

CNAME record at zone apex

A CNAME at the zone apex can break MX and NS records. Use ALIAS/ANAME or A records instead.

Got: e2867.dsca.akamaiedge.net

No NS records found

No MX records — email not configured via DNS

CAA records not checked

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

No SPF record found in TXT records

SPF helps prevent email spoofing. Add a TXT record starting with 'v=spf1'.

DNS resolution is slow (239 ms)

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

Got: 239 ms

A	23.41.36.119
AAAA	2600:1413:5000:a88::b33, 2600:1413:5000:a85::b33
CNAME	e2867.dsca.akamaiedge.net
NS	—
MX	—
TXT	—
CAA	Lookup not available with standard resolver

Resolved in 239 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

A CNAME at the zone apex can break MX and NS records. Use ALIAS/ANAME or A records instead.

Why this matters

CNAME at the apex (example.com) breaks every other apex record (MX, TXT, NS) — DNS-protocol violation per RFC 1034.

Learn more ▾

RFC 1034 forbids CNAME alongside other records at the same name. Some DNS providers offer ALIAS / ANAME / flattened-CNAME records that work around this — use those instead. Otherwise apex-level CNAME breaks email (no MX), domain ownership verification (no TXT), and more.

Source: RFC 1034

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.

SPF helps prevent email spoofing. Add a TXT record starting with 'v=spf1'.

Why this matters

Without SPF, receiving servers can't validate sending IPs — your domain is easier to spoof in phishing.

Learn more ▾

SPF complements DMARC. Both should be published. SPF records list authorized sending IPs (e.g., `v=spf1 include:_spf.google.com ~all` for Google Workspace). After publishing, verify in Google Postmaster Tools or mxtoolbox.

Source: RFC 7208 (SPF)

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

TLS Certificate Expiry & Recommendations

36 days until leaf cert expires — 4 issues to address

REVIEW

Certificate validity

days left

0d 30d 60d 90d+

Recommended actions

Add includeSubDomains to the HSTS directive
Add the preload directive and submit to hstspreload.org once max-age + includeSubDomains are in place
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

CDN & Delivery

Fastly

REVIEW

Fastly

Site is served via Fastly CDN

Got: x-served-by: cache-bur-kbur8200089-BUR

CDN Detected: Fastly

Provider Fastly Evidence x-served-by: cache-bur-kbur8200089-BUR

A+

Redirect Chain

No redirects — direct access

PASS

No redirects — direct access

Got: https://www.cisco.com

https://www.cisco.com

30 ms · HTTP/1.1 FINAL

#	URL	Status	Time	Protocol	Server
1	https://www.cisco.com	200	30 ms	HTTP/1.1

A+

IPv6 Readiness

IPv6 reachable (1 ms)

PASS

IPv6 reachable (1 ms)

IPv6 is configured and reachable at 2600:1413:5000:a88::b33, 2600:1413:5000:a85::b33

Got: 1 ms connect

IPv6 Ready

AAAA Records 2600:1413:5000:a88::b33, 2600:1413:5000:a85::b33 Connection Reachable (1 ms)

A+

Crawlability

robots.txt present, sitemap with 1 URLs

PASS

robots.txt present, sitemap with 1 URLs

robots.txt is present

Got: 10240 bytes

sitemap.xml is present

sitemap.xml is valid XML

sitemap.xml contains 1 entries

Sitemap index with 1 child sitemaps

robots.txt references sitemap

robots.txt 200 OK

Size 10240 B Sitemaps referenced 30 User-agents cisco-googlebot-enterprise, GPTBot, Googlebot, Googlebot Smartphone, Bingbot, *, CCBot, Google-Extended, Google AdsBot Blocking No — crawling allowed

#--------------------------------

User-agent: cisco-googlebot-enterprise

Disallow: /bug-navigator # Bug Data

# Disallow: /cgi-bin # allow test crawls for TAC support content

Disallow: /pcgi-bin # no programs

Disallow: /univ-src/ccden # will get content through /univercd

Disallow: /cpropub/univercd # obsolete

Disallow: /jobs     # temporary entry per performance team

#--------------------------------

User-agent: GPTBot

User-agent: CCBot

User-agent: Google-Extended

Allow: /site/us/en/

Allow: /*.llms.txt$

Allow: /*.md$

Allow: https://www.cisco.com/llms.txt


User-agent: Googlebot

User-agent: Googlebot Smartphone

User-agent: Google AdsBot

User-agent: Bingbot

Disallow: /*.md$

Disallow:/*.llms.txt$

#--------------------------------

User-agent: *

Disallow: /*.html?cachemode=refresh$

Disallow: /bug-navigator # Bug Data

Disallow: /web/telepresence/pro/

Disallow: /cgi-bin # no programs

Disallow: /pcgi-bin # no programs

Disallow: /univ-src/ccden # will get content through /univercd

Disallow: /cpropub/univercd # obsolete

Disallow: /jobs     # temporary entry per performance team

Disallow: /en/US/swassets/

Disallow: /univercd/cc/td/doc

Disallow: /univercd/

Disallow: /tacpage

Disallow: /survey/

Disallow: /web/login

Disallow: /ciscodotcom/

Disallow: /c/contentReuse/

Disallow: /c/contentreuse/

Disallow: /c/dam/assets/offers/pdfs/	

Disallow: /c/dam/en/us/td/docs/Sanity/datasheet/	

Disallow: /c/dam/m/da_dk/offers/assets/images/	

Disallow: /c/dam/m/da_dk/offers/assets/pdfs/	

Disallow: /c/dam/m/de_de/offers/assets/images/	

Disallow: /c/dam/m/de_de/offers/assets/pdfs/	

Disallow: /c/dam/m/digital/

Disallow: /c/dam/m/en_au/offers/assets/images/	

Disallow: /c/dam/m/en_au/offers/assets/pdfs/	

Disallow: /c/dam/m/en_au/offers/images/	

Disallow: /c/dam/m/en_au/offers/video/	

Disallow: /c/dam/m/en_emear/offers/assets/images/	

Disallow: /c/dam/m/en_emear/offers/assets/pdfs/	

Disallow: /c/dam/m/en_hk/offers/assets/images/	

Disallow: /c/dam/m/en_hk/offers/assets/pdf/	

Disallow: /c/dam/m/en_id/offers/assets/images/	

Disallow: /c/dam/m/en_id/offers/assets/pdfs/	

Disallow: /c/dam/m/en_id/offers/images/	

Disallow: /c/dam/m/en_in/offers/assets/images/	

Disallow: /c/dam/m/en_in/offers/assets/pdfs/	

Disallow: /c/dam/m/en_in/offers/images	

Disallow: /c/dam/m/en_in/offers/video/	

Disallow: /c/dam/m/en_my/offers/assets/images/	

Disallow: /c/dam/m/en_my/offers/assets/pdfs/	

Disallow: /c/dam/m/en_my/offers/images/	

Disallow: /c/dam/m/en_ph/offers/assets/images/	

Disallow: /c/dam/m/en_ph/offers/assets/pdfs/	

Disallow: /c/dam/m/en_ph/offers/images/	

Disallow: /c/dam/m/en_sg/offers/assets/images/	

Disallow: /c/dam/m/en_sg/offers/assets/pdfs/	

Disallow: /c/dam/m/en_sg/offers/images/	

Disallow: /c/dam/m/en_sg/offers/video/	

Disallow: /c/dam/m/en_th/offers/assets/images/	

Disallow: /c/dam/m/en_th/offers/assets/pdfs/	

Disallow: /c/dam/m/en_th/offers/images/	

Disallow: /c/dam/m/en_uk/offers/assets/images/	

Disallow: /c/dam/m/en_uk/offers/assets/pdfs/	

Disallow: /c/dam/m/en_vn/offers/assets/images/	

Disallow: /c/dam/m/en_vn/offers/assets/pdfs/	

Disallow: /c/dam/m/es_es/offers/assets/images/	

Disallow: /c/dam/m/es_es/offers/assets/pdfs/	

Disallow: /c/dam/m/es_la/offers/assets/images/	

Disallow: /c/dam/m/es_la/offers/assets/pdfs/	

Disallow: /c/dam/m/es_la/offers/video/	

Disallow: /c/dam/m/es_mx/offers/assets/images/	

Disallow: /c/dam/m/es_mx/offers/assets/pdfs/	

Disallow: /c/dam/m/fi_fi/offers/assets/images/	

Disallow: /c/dam/m/fi_fi/offers/assets/pdfs/	

Disallow: /c/dam/m/fr_ca/offers/assets/images/	

Disallow: /c/dam/m/fr_ca/offers/assets/pdfs/	

Disallow: /c/dam/m/fr_ca/offers/video/	

Disallow: /c/dam/m/fr_fr/offers/assets/images	

Disallow: /c/dam/m/fr_fr/offers/assets/pdfs/	

Disallow: /c/dam/m/it_it/offers/assets/images/	

Disallow: /c/dam/m/it_it/offers/assets/pdfs/	

Disallow: /c/dam/m/ja_jp/offers/161/security/images/	

Disallow: /c/dam/m/ja_jp/offers/161/security/pdf/	

Disallow: /c/dam/m/ja_jp/offers/162/network/images	

Disallow: /c/dam/m/ja_jp/offers/162/network/pdf/	

Disallow: /c/dam/m/ja_jp/offers/162/sc10/images/	

Disallow: /c/dam/m/ja_jp/offers/162/sc10/pdf/	

Disallow: /c/dam/m/ja_jp/offers/162/security/pdf/	

Disallow: /c/dam/m/ko_kr/offers/assets/images/	

Disallow: /c/dam/m/ko_kr/offers/assets/pdfs/	

Disallow: /c/dam/m/ko_kr/offers/images/	

Disallow: /c/dam/m/nl_be/offers/assets/images/	

Disallow: /c/dam/m/nl_be/offers/assets/pdfs/	

Disallow: /c/dam/m/nl_nl/offers/assets/images/	

Disallow: /c/dam/m/nl_nl/offers/assets/pdfs/	

Disallow: /c/dam/m/no_no/offers/assets/images/	

Disallow: /c/dam/m/no_no/offers/assets/pdfs/	

Disallow: /c/dam/m/pl_pl/offers/assets/images/	

Disallow: /c/dam/m/pl_pl/offers/assets/pdfs/	

Disallow: /c/dam/m/pt_br/offers/assets/images	

Disallow: /c/dam/m/pt_br/offers/assets/pdfs	

Disallow: /c/dam/m/pt_br/offers/img/	

Disallow: /c/dam/m/pt_br/offers/pdf/	

Disallow: /c/dam/m/pt_br/offers/video/	

Disallow: /c/dam/m/ru_ru/offers/assets/images/	

Disallow: /c/dam/m/ru_ru/offers/assets/pdfs/	

Disallow: /c/dam/m/sv_se/offers/assets/images/	

Disallow: /c/dam/m/sv_se/offers/assets/pdfs/	

Disallow: /c/dam/m/tr_tr/offers/assets/images/	

Disallow: /c/dam/m/tr_tr/offers/assets/pdfs/	

Disallow: /c/dam/m/zh_cn/offers/assets/images/	

Disallow: /c/dam/m/zh_cn/offers/assets/pdfs/	

Disallow: /c/dam/m/zh_tw/offers/assets/images/	

Disallow: /c/dam/m/zh_tw/offers/assets/pdfs/	

Disallow: /c/en/us/applicat/camp/	

Disallow: /c/en/us/applicat/non-camp/	

Disallow: /c/m/digital/

Disallow: /cisco/web/UK/telepresence/pro/	

Disallow: /content/en/us/td/docs/Sanity	

Disallow: /c/en/us/products/products-sanity-test/ 	

Disallow: /c/en/us/solutions/solutions-sanity-test/	

Disallow: /en/US/swassets/sw274/sitewide_country_language_selector.html	

Disallow: /JP/support/public/mt/tac/100/1002347/techtip_conventions.shtml	

Disallow: /public/library/iosplanner/reldesignation.html	

Disallow: /web/AT/telepresence/pro/	

Disallow: /web/BE/fr/telepresence/pro/	

Disallow: /web/BE/nl/telepresence/pro/	

Disallow: /web/BE/telepresence/pro/	

Disallow: /web/CH/de/telepresence/pro/	

Disallow: /web/CH/fr/telepresence/pro/	

Disallow: /web/CZ/telepresence/pro/	

Disallow: /web/DE/telepresence/pro/	

Disallow: /web/DK/telepresence/pro/	

Disallow: /web/ES/telepresence/pro/	

Disallow: /web/FI/telepresence/pro/	

Disallow: /web/FR/telepresence/pro/	

Disallow: /web/go/	

Disallow: /web/help/index.html	

Disallow: /web/HU/telepresence/pro/	

Disallow: /web/IT/telepresence/pro/	

Disallow: /web/ME/ar/telepresence/pro/	

Disallow: /web/ME/telepresence/pro/	

Disallow: /web/NL/telepresence/pro/	

Disallow: /web/NO/telepresence/pro/	

Disallow: /web/offers/pdfs/	

Disallow: /web/PL/telepresence/pro/	

Disallow: /web/PO/telepresence/pro/	

Disallow: /web/PT/telepresence/pro/	

Disallow: /web/RO/telepresence/pro/	

Disallow: /web/RU/telepresence/pro/	

Disallow: /web/SE/telepresence/pro/	

Disallow: /web/TR/telepresence/pro/	

Disallow: /web/ZA/telepresence/pro/

Disallow: /c/ru_ru/

Disallow: /c/m/ru_ru/

Disallow: /content/ru_ru/

Disallow: /cisco/support/RU/

Disallow: /cisco/web/support/RU/

Disallow: /ru/

Disallow: /c/dam/assets/global/pdfs/security/ru/

Disallow: /c/dam/assets/global/RU/

Disallow: /c/dam/global/ru_ru/

Disallow: /c/dam/m/ru_ru/

Disallow: /c/dam/marketing/ru_ru/

Disallow: /web/offer/em/pdfs_innovators/RU/

Disallow: /web/RU/

Disallow: /global/RU/

Disallow: /cisco/web/support/RU/

Disallow: /c/en/us/support/web/tools/scm/help/stage/ru-RU/

Disallow: /c/en/us/support/web/tools/scm/help/ru-RU/

Disallow: /web/applicat

Disallow: /c/en/us/applicat/

Disallow: /cisco/web/

Disallow: /site/us/en/test/

Disallow: /assets/sol/sb/

Disallow: /c/dam/r/newsroom/daily-news/

Disallow: /en/US/docs/general/Test/ 

Disallow: /c/login

Disallow: /content/cdc/login

Disallow: /web/solutions/

Disallow: /c/en/us/support/index-beta.html

Disallow: /resources

Disallow: /abm/

Disallow: /abx/

#--------------------------------

Sitemap: https://www.cisco.com/web/sitemap/www_cisco_com_ar_ae_index.xml

Sitemap: https://www.cisco.com/web/sitemap/www_cisco_com_ar_eg_index.xml

Sitemap: https://www.cisco.com/web/sitemap/www_cisco_com_ar_qa_index.xml

Sitemap: https://www.cisco.com/web/sitemap/www_cisco_com_ar_sa_index.xml

Sitemap: https://www.cisco.com/web/sitemap/www_cisco_com_az_az_index.xml

Sitemap: https://www.cisco.com/web/sitemap/www_cisco_com_bg_bg_index.xml

Sitemap: https://www.cisco.com/web/sitemap/www_cisco_com_bs_ba_index.xml

Sitemap: https://www.cisco.com/web/sitemap/www_cisco_com_cs_cz_index.xml

Sitemap: https://www.cisco.com/web/sitemap/www_cisco_com_da_dk_index.xml

Sitemap: https://www.cisco.com/web/sitemap/www_cisco_com_de_at_index.xml

Sitemap: https://www.cisco.com/web/sitemap/www_cisco_com_de_ch_index.xml

Sitemap: https://www.cisco.com/web/sitemap/www_cisco_com_de_de_index.xml

Sitemap: https://www.cisco.com/web/sitemap/www_cisco_com_el_gr_index.xml

Sitemap: https://www.cisco.com/web/sitemap/www_cisco_com_en_ae_index.xml

Sitemap: https://www.cisco.com/web/sitemap/www_cisco_com_en_au_index.xml

Sitemap: https://www.cisco.com/web/sitemap/www_cisco_com_en_be_index.xml

Sitemap: https://www.cisco.com/web/sitemap/www_cisco_com_en_ca_index.xml

Sitemap: https://www.cisco.com/web/sitemap/www_cisco_com_en_cy_index.xml

Sitemap: https://www.cisco.com/web/sitemap/www_cisco_com_en_dz_index.xml

Sitemap: https://www.cisco.com/web/sitemap/www_cisco_com_en_eg_index.xml

Sitemap: https://www.cisco.com/web/sitemap/www_cisco_com_en_hk_index.xml

Sitemap: https://www.cisco.com/web/sitemap/www_cisco_com_en_id_index.xml

Sitemap: https://www.cisco.com/web/sitemap/www_cisco_com_en_il_index.xml

Sitemap: https://www.cisco.com/web/sitemap/www_cisco_com_en_in_index.xml

Sitemap: https://www.cisco.com/web/sitemap/www_cisco_com_en_mt_index.xml

Sitemap: https://www.cisco.com/web/sitemap/www_cisco_com_en_my_index.xml

Sitemap: https://www.cisco.com/web/sitemap/www_cisco_com_en_ng_index.xml

Sitemap: https://www.cisco.com/web/sitemap/www_cisco_com_en_ph_index.xml

Sitemap: https://www.cisco.com/web/sitemap/www_cisco_com_en_qa_index.xml

Sitemap: https://www.cisco.com/web/sitemap/www_cisco_co

sitemap.xml 200 OK

Type Sitemap Index URLs 1 entries Valid XML Yes

Child Sitemaps:

https://www.cisco.com/web/sitemap/www/ci...

A+

URL Variants

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

PASS

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

www/non-www redirect configured correctly (preferred: www)

HTTP correctly 301-redirects to HTTPS

www / non-www

200https://www.cisco.com/

302https://cisco.com/

Preferred variant: www

HTTP → HTTPS

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

Consistent

Domain Intelligence

cisco.com — via MarkMonitor Inc., 39 years, 5 months old

PASS

cisco.com — via MarkMonitor Inc., 39 years, 5 months old

Domain expires in 37 days

Consider enabling auto-renewal to prevent accidental expiration.

Got: Expires May 15, 2026

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.

Domain expiry

EXPIRED

May 15, 2026

SSL certificate

36 days

Issued by IdenTrust

Domain age

39 years, 5 months

Registered May 14, 1987

DNSSEC

Not enabled

Protects against DNS spoofing

Hosting

Unknown

2001:420:1101:1::185

Registrar

MarkMonitor Inc.

Lock status unknown 5 NS records

Expiry timeline

Today

+1 year

Domain expiry SSL expiry Danger zone (≤30 days)

Recommended actions

Domain has EXPIRED — renew immediately to avoid total site outage
Enable DNSSEC to protect visitors from DNS spoofing

Registrar MarkMonitor Inc.

Created May 14, 1987 (39 years, 5 months ago)

Expires May 15, 2026 (1 months)

Last Updated April 13, 2025

Name Servers a28-64.akam.net, a3-64.akam.net, ns1.cisco.com, ns2.cisco.com, ns3.cisco.com

DNSSEC Not enabled

Hosting

IP Address 2001:420:1101:1::185

Data source: rdap (0.5s)

Consider enabling auto-renewal to prevent accidental expiration.

Why this matters

Domain expiry approaching — renew immediately and ensure auto-renew + alerting are configured.

Source: ICANN renewal policy

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

A+

HTTP Probe Timing

Total 47 ms — DNS, TCP, TLS, TTFB, content transfer breakdown

PASS

DNS Lookup

3 ms

TCP Connect

1 ms

TLS Handshake

4 ms

Time to First Byte

47 ms

Total Time

48 ms

Connection waterfall

DNS Lookup 3 ms TCP Connect 1 ms TLS Handshake 4 ms Server Processing 39 ms Content Transfer 1 ms

All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.