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Infrastructure

· 9 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.
SCORE
85
GRADE
B
FIX
1
REVIEW
3
PASS
5
INFO
0
Probed from Madrid, Spain
301 Moved Permanently
Checks
9
5 PASS 3 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.

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.pendo.io/
200https://pendo.io/

Inconsistent — duplicate content risk

HTTP → HTTPS

301http://pendo.io/ → https://www.pendo.io:443/

Consistent

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

Certificate validity

72
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
1 A records, 56 ms lookup
PASS
1 A records, 56 ms lookup
Info::
Resolves to 1 IPv4 address(es)
Got: 34.54.74.243
Info::
Single A record — no DNS redundancy
Multiple A records provide failover if one server goes down.
Info::
No IPv6 (AAAA) records
Info::
4 nameserver(s) configured
Got: ns-cloud-e4.googledomains.com, ns-cloud-e1.googledomains.com, ns-cloud-e3.googledomains.com, ns-cloud-e2.googledomains.com
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
Info::
DNS resolution time: 56 ms
Got: 56 ms
A34.54.74.243
AAAA—
CNAME—
NSns-cloud-e4.googledomains.com, ns-cloud-e1.googledomains.com, ns-cloud-e3.googledomains.com, ns-cloud-e2.googledomains.com
MX
1 aspmx.l.google.com
2 alt1.aspmx.l.google.com
3 alt2.aspmx.l.google.com
4 alt3.aspmx.l.google.com
5 alt4.aspmx.l.google.com
TXT
notion-domain-verification=kJSlM8YgYQevzjt4AtIvjRrqKaXmwfgDVTB0Uo0k2OX
anthropic-domain-verification-78fd6n=cXpPTpUsDj0GQNSovbiAXGwXw
monday-com-verification=M4MtfvOAqbYu5xXLhLtLhLa38dNlW1CEcuk0FPk5uB0
cursor-domain-verification-g98gs7=9qnwJidCmu0UjFvCd2jjqfjRs
SPF v=spf1 include:docebosaas.com redirect=4i2em5lw._spf._d.mim.ec
google-site-verification=nI02dbcexFrTJKuMdoCMTK9JOVFuFIy2TZXjYgpt9ag
firebender-domain-verification-tc16df=lyWtx3eHvp6NLJjUGhW4VI6WL
whimsical=3ec496061464753b3c4e4a1e34feac015f854d8e
ciscocidomainverification=1f043413f07365263c5255f63181045759a7c1a78b2c23c5123fea...
calendly-site-verification=NHZ9h1kJ3t1uxXVIXjAhSVQfMX7zvI5RCUYwd0fGo
google-site-verification=j0tbz4tWi3ZRcRtIhhmZYnj078u2D6Szb3Iu4pNxKSA
apple-domain-verification=ySUpulB6B62zv6Ww
atlassian-sending-domain-verification=6946296c-d333-49c5-b6e5-7895395b9696
MS=ms84958166
linear-domain-verification=qyakyx4sk5qs
google-site-verification=5OtJq8mihvORFOGT6ZrjGC_uWEu-u6KadYco8qSSwHA
lovable_verification=Ne4SpW7BBluYqPe2CqYy
openai-domain-verification=dv-PlU1U64r3swfbfEnu4Wyfzh2
MS=ms91173086
slack-domain-verification=OCwewNvPyVSZLlwapK5Ld9xptTdZA3DmB9LDYBDI
docusign=144e8912-1f35-42ea-9b7c-1c0f3350d15e
smartsheet-site-validation=mEUq4iTotvqt5XiijvT_eAK1ADFQufCu
atlassian-domain-verification=pbhYuoWU4/Id50c7Qip7Ctz+xrBsfxExovTYEFxV8figd7KU1v...
adobe-idp-site-verification=0464dd56ff69a077c0d8bbee8c8e245f68bd411122030377922a...
google-site-verification=qLYyf7z5PQFG8HUEYiUxZkIsW8G73iV2Y7xwKsQ0qW0
atlassian-domain-verification=haPUq2rY+fPmNyu5fCrMq257k+26DqpNo9RZonaEq31aGzPNg5...
miro-verification=ff002c24dc72e8902e28e6aa247e42868e0d2a25
facebook-domain-verification=6jt10dejylph4fztu78gwqv5antj2b
google-site-verification=8c0OnIZ8BAC-QE6t0vOgHSsouB_nNVI7t2efTkpsg_w
hubspot-developer-verification=YjU0OTM2ZDUtOTE2Mi00OTRjLTg1OTUtZjUwYjU4OGI2Mjcz
jamf-site-verification=vXIgUTgcCbUEbMiSCYjAbQ
google-site-verification=fPkSOGYZ4k7ffyV--3vklUU12CCFE35fzsuN2DHrXCQ
zapier-domain-verification-challenge=8e7e5d59-5fad-4b5c-a361-9b19428e57a0
postman-domain-verification=5a0882a7e870d944720a28f3576aff39f3fb5a169bf627a29a5b...
drift-domain-verification=734746d7bf20a9137c09d8378597500c0bff59112bc3b8a093b1d1...
google-site-verification=gdDeZOTUsarQhSseL_vL3b107YpdqDwRP2aAtJxDiNw
wrike-verification=MjM2NDQ3MDo1NDI2NTJiZDZkZDFlMmFjYTU3ZmUyNTZkZmYzNDFjOWM1YTNhO...
intacct-esk=4FED1A3DEF352267E0539E06A8C05A57
CAALookup not available with standard resolver
Resolved in 56 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), 444 ms total
PASS
1 redirect(s), 444 ms total
Info::
Single redirect
Got: https://pendo.io → https://www.pendo.io:443/ (301)
Info::
WWW normalization redirect

https://pendo.io

59 ms · HTTP/1.1

301

https://www.pendo.io:443/

385 ms · HTTP/1.1 FINAL

#URLStatusTimeProtocolServer
1https://pendo.io30159 msHTTP/1.1
2https://www.pendo.io:443/200385 msHTTP/1.1Vercel

See the visual redirect chain in the HTTP Probe tab →

A+
Crawlability
robots.txt present, sitemap with 13 URLs
PASS
robots.txt present, sitemap with 13 URLs
Info::
robots.txt is present
Got: 646 bytes
Info::
sitemap.xml is present
Info::
sitemap.xml is valid XML
Info::
sitemap.xml contains 13 entries
Info::
Sitemap index with 13 child sitemaps
Info::
robots.txt references sitemap
robots.txt 200 OK
Size 646 B Sitemaps referenced 10 User-agents * Blocking No — crawling allowed
User-Agent: *
Allow: /

Host: https://www.pendo.io
Sitemap: https://www.pendo.io/sitemap_index.xml
Sitemap: https://www.pendo.io/pendomonium-2019/sitemap_index.xml
Sitemap: https://www.pendo.io/pendo-blog/sitemap_index.xml
Sitemap: https://www.pendo.io/pendomonium-2020/sitemap_index.xml
Sitemap: https://www.pendo.io/guide-2021/sitemap_index.xml
Sitemap: https://www.pendo.io/pendomonium-2021/sitemap_index.xml
Sitemap: https://www.pendo.io/how-i-pendo/sitemap_index.xml
Sitemap: https://www.pendo.io/guide/sitemap_index.xml
Sitemap: https://www.pendo.io/product-led/sitemap_index.xml
Sitemap: https://www.pendo.io/pendomonium/sitemap_index.xml
sitemap.xml 200 OK
Type Sitemap Index URLs 13 entries Valid XML Yes
Child Sitemaps:
A
Domain Intelligence
pendo.io — via Key-Systems GmbH, 13 years old, hosted on Google Cloud
PASS
pendo.io — via Key-Systems GmbH, 13 years old, hosted on Google Cloud
Warning::
Domain expires in 56 days
Consider enabling auto-renewal to prevent accidental expiration.
Got: Expires Jun 17, 2026
Info::
Registrar: Key-Systems GmbH
Info::
Registrar lock is enabled
Domain cannot be transferred without explicit unlock from the registrar. This protects against unauthorized transfers.
Info::
Hosting: Google Cloud
Got: AS396982
Domain expiry

4 days

June 17, 2026

SSL certificate

72 days

Issued by Google Trust Services

Domain age

13 years

Registered June 17, 2013

DNSSEC

Status unknown

Protects against DNS spoofing

Hosting

Google Cloud

ASN AS396982

34.54.74.243

Registrar

Key-Systems GmbH

Locked 4 NS records
Expiry timeline
Today
+1 year
Domain expiry SSL expiry Danger zone (≤30 days)
Recommended actions
  • Renew the domain or enable auto-renewal to prevent accidental expiry
Registrar Key-Systems GmbH
Created June 17, 2013 (13 years ago)
Expires June 17, 2026 (1 months)
Last Updated January 31, 2026
Name Servers ns-cloud-e1.googledomains.com, ns-cloud-e2.googledomains.com, ns-cloud-e3.googledomains.com, ns-cloud-e4.googledomains.com
Registrant c/o whoisproxy.com
Hosting
IP Address 34.54.74.243
ASN AS396982 (GOOGLE-CLOUD-PLATFORM - Google LLC, US)
Provider Google Cloud
Data source: whois (1.1s)

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

Domain cannot be transferred without explicit unlock from the registrar. This protects against unauthorized transfers.

Why this matters

Registrar lock (clientTransferProhibited et al.) prevents unauthorized domain transfers — strongest defense against domain hijacking.

Source: ICANN / domain-security best practice

A+
HTTP Probe Timing
Total 82 ms — DNS, TCP, TLS, TTFB, content transfer breakdown
PASS
DNS Lookup DNS Lookup — time to resolve the domain name to an IP address.
21 ms
TCP Connect TCP Connect — time to establish a TCP connection to the server.
17 ms
TLS Handshake TLS Handshake — time to complete the HTTPS encryption handshake.
25 ms
Time to First Byte Time to First Byte — how long the server takes to respond with the first byte of data.
82 ms
Total Time Total request time from DNS lookup through full response.
82 ms

Connection waterfall

DNS Lookup 21 ms TCP Connect 17 ms TLS Handshake 25 ms Server Processing 19 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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