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https://ul.com

Infrastructure

· 9 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.
SCORE
93
GRADE
A
FIX
0
REVIEW
2
PASS
7
INFO
0
Probed from Madrid, Spain
301 Moved Permanently
Checks
9
7 PASS 2 REVIEW
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.ul.com/
200https://ul.com/

Inconsistent — duplicate content risk

HTTP → HTTPS

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

Consistent

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

Certificate validity

87
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, 90 ms lookup
PASS
1 A records, 90 ms lookup
Info::
Resolves to 1 IPv4 address(es)
Got: 23.185.0.4
Info::
Single A record — no DNS redundancy
Multiple A records provide failover if one server goes down.
Info::
Has 2 IPv6 (AAAA) record(s)
Got: 2620:12a:8001::4, 2620:12a:8000::4
Info::
2 nameserver(s) configured
Got: ulla.ns.cloudflare.com, carlos.ns.cloudflare.com
Info::
1 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: 90 ms
Got: 90 ms
A23.185.0.4
AAAA2620:12a:8001::4, 2620:12a:8000::4
CNAME—
NSulla.ns.cloudflare.com, carlos.ns.cloudflare.com
MX
0 ul-com.mail.protection.outlook.com
TXT
vmware-cloud-verification-f1e06dc2-0c87-41a5-b929-1f57d4969da8
docusign=b9b6e80b-9347-4a89-b369-8ba6b0bdeef7
atlassian-domain-verification=Er/1vFeKCgT3HBTmn0XLa9W1Sit4XUBejOL2aVj3aZstquVEJ0...
ufe8g4u2phcsj1s5ku6761n3cm
astro-domain-verification=cm74lk7nr0h4n01jxpwh4l7ee
miro-verification=dbb26ddf6929b25347fbe031be4bf1ef357ee3c0
amazonses:XhWYmgjF9Vb5d1P+liHhPVTDzhLNT085snBb/1YDeCE=
_lh661wfin051osvgpm6y0i6oe4kg77m
adobe-idp-site-verification=4df6e249fa302c36737e197df5a07b86f7a2912de319a82411da...
docker-verification=740e233c-fa7b-4754-9f83-7e63156a8a65
adobe-sign-verification=8a1acace3cbddcf86ae233c88540b97
globalsign-domain-verification=753A36789FE36C62B9BB6535734CFABF
SPF v=spf1 mx ip4:12.32.81.100 ip4:12.32.81.172 ip4:38.142.64.130 include:spf.protec...
atlassian-domain-verification=RhlqZRFqxJPB/R1h16mfecpYqUnaFV1DMIQ2TJCxqJf4nzxDQj...
globalsign-domain-verification=92096ea7ff5d3270ae5215f4799d73af
google-site-verification=9VbUVEZoiOHTDpEfV2ncc2719kgw2RkWafcUMswce1w
openatts a=dns-did; p=did:ethr:0xB5b8DE5d586329C1F54cd4a70141379Bc6Be70df#contro...
docusign=091d3c32-ead9-4d22-a0dd-05aea7742980
atlassian-domain-verification=QcnUXBPonaBafaMenDn9msPWrnOlsa6xMa8NeZ4gBhB7rmonlb...
apple-domain-verification=OFjBXbeCi8NhZgQJ
airtable-verification=c6f79cddd85d0727cf9a40485afc4fba
globalsign-domain-verification=71859A84675F4A75DBB70CECC78B4149
uletpm2e4t0ha9a114c7rgj2qm
teamviewer-sso-verification=bbb95663564f4ef0abb9bdfce6ff7d45
CAALookup not available with standard resolver
Resolved in 90 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), 69 ms total
PASS
1 redirect(s), 69 ms total
Info::
Single redirect
Got: https://ul.com → https://www.ul.com/ (301)
Info::
WWW normalization redirect

https://ul.com

6 ms · HTTP/1.1

301

https://www.ul.com/

63 ms · HTTP/1.1 FINAL

#URLStatusTimeProtocolServer
1https://ul.com3016 msHTTP/1.1Pantheon
2https://www.ul.com/20063 msHTTP/1.1nginx

See the visual redirect chain in the HTTP Probe tab →

A+
IPv6 Readiness
IPv6 reachable (0 ms)
PASS
IPv6 reachable (0 ms)
Info::
IPv6 is configured and reachable at 2620:12a:8001::4, 2620:12a:8000::4
Got: 0 ms connect
IPv6 Ready
AAAA Records 2620:12a:8001::4, 2620:12a:8000::4 Connection Reachable (0 ms)
A+
Crawlability
robots.txt present, sitemap with 4 URLs
PASS
robots.txt present, sitemap with 4 URLs
Info::
robots.txt is present
Got: 2710 bytes
Info::
sitemap.xml is present
Info::
sitemap.xml is valid XML
Info::
sitemap.xml contains 4 entries
Info::
Sitemap index with 4 child sitemaps
Info::
robots.txt references sitemap
robots.txt 200 OK
Size 2710 B Sitemaps referenced 1 User-agents * Blocking No — crawling allowed
#
# robots.txt
#
# This file is to prevent the crawling and indexing of certain parts
# of your site by web crawlers and spiders run by sites like Yahoo!
# and Google. By telling these "robots" where not to go on your site,
# you save bandwidth and server resources.
#
# This file will be ignored unless it is at the root of your host:
# Used:    http://example.com/robots.txt
# Ignored: http://example.com/site/robots.txt
#
# For more information about the robots.txt standard, see:
# http://www.robotstxt.org/robotstxt.html

User-agent: *
# CSS, JS, Images
Allow: /core/*.css$
Allow: /core/*.css?
Allow: /core/*.js$
Allow: /core/*.js?
Allow: /core/*.gif
Allow: /core/*.jpg
Allow: /core/*.jpeg
Allow: /core/*.png
Allow: /core/*.svg
Allow: /profiles/*.css$
Allow: /profiles/*.css?
Allow: /profiles/*.js$
Allow: /profiles/*.js?
Allow: /profiles/*.gif
Allow: /profiles/*.jpg
Allow: /profiles/*.jpeg
Allow: /profiles/*.png
Allow: /profiles/*.svg
# Directories
Disallow: /core/
Disallow: /profiles/
# Files
Disallow: /README.md
Disallow: /composer/Metapackage/README.txt
Disallow: /composer/Plugin/ProjectMessage/README.md
Disallow: /composer/Plugin/Scaffold/README.md
Disallow: /composer/Plugin/VendorHardening/README.txt
Disallow: /composer/Template/README.txt
Disallow: /modules/README.txt
Disallow: /sites/README.txt
Disallow: /themes/README.txt
# Paths (clean URLs)
Disallow: /admin/
Disallow: /comment/reply/
Disallow: /filter/tips
Disallow: /node/add/
Disallow: /search/
Disallow: /user/register
Disallow: /user/password
Disallow: /user/login
Disallow: /user/logout
Disallow: /media/oembed
Disallow: /*/media/oembed
Disallow: /filter/tips
Disallow: /node/*
Disallow: */node/*
Disallow: /contact-us/*
Disallow: /newsletter-signup/*
Disallow: /event-signup/*
Disallow: /request-demo/*
Disallow: /contact-sales/*
Disallow: */event-signup
Disallow: */newsletter-signup
Disallow: */sales-inquiry
Disallow: */sales-inquiries
Disallow: */ul-json/china/*
# Paths (no clean URLs)
Disallow: /index.php/admin/
Disallow: /index.php/comment/reply/
Disallow: /index.php/filter/tips
Disallow: /index.php/node/add/
Disallow: /index.php/search/
Disallow: /index.php/user/password/
Disallow: /index.php/user/register/
Disallow: /index.php/user/login/
Disallow: /index.php/user/logout/
Disallow: /index.php/media/oembed
Disallow: /index.php/*/media/oembed
Disallow: /index.php/filter/tips
Disallow: /index.php/event-signup
Disallow: /index.php/*/event-signup
Disallow: /index.php/newsletter-signup
Disallow: /index.php/*/newsletter-signup
Disallow: /index.php/sales-inquiry
Disallow: /index.php/*/sales-inquiry
Disallow: /index.php/sales-inquiries
Disallow: /index.php/*/sales-inquiries
Sitemap: https://www.ul.com/sitemap.xml
sitemap.xml 200 OK
Type Sitemap Index URLs 4 entries Valid XML Yes
Child Sitemaps:
A+
Domain Intelligence
ul.com — via Network Solutions, LLC, 32 years, 1 months old
PASS
ul.com — via Network Solutions, LLC, 32 years, 1 months old
Info::
Domain registered until Aug 15, 2030 (4 years, 4 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: Network Solutions, LLC
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

1521 days

August 15, 2030

SSL certificate

87 days

Issued by Let's Encrypt

Domain age

32 years, 1 months

Registered August 16, 1994

DNSSEC

Not enabled

Protects against DNS spoofing

Hosting

Unknown

2620:12a:8000::4

Registrar

Network Solutions, LLC

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 Network Solutions, LLC
Created August 16, 1994 (32 years, 1 months ago)
Expires August 15, 2030 (4 years, 4 months)
Last Updated June 16, 2025
Name Servers carlos.ns.cloudflare.com, ulla.ns.cloudflare.com
DNSSEC Not enabled
Hosting
IP Address 2620:12a:8000::4
Data source: rdap (0.1s)

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 37 ms — DNS, TCP, TLS, TTFB, content transfer breakdown
PASS
DNS Lookup DNS Lookup — time to resolve the domain name to an IP address.
31 ms
TCP Connect TCP Connect — time to establish a TCP connection to the server.
0 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.
37 ms
Total Time Total request time from DNS lookup through full response.
37 ms

Connection waterfall

DNS Lookup 31 ms TCP Connect 0 ms TLS Handshake 4 ms Server Processing 2 ms Content Transfer 0 ms
A+
CDN & Delivery
Fastly (HIT)
PASS
Fastly (HIT)
Info::
Site is served via Fastly CDN
Got: x-served-by: cache-toj-leto2350045-TOJ
Info::
CDN cache status: HIT
CDN Detected: Fastly
Provider Fastly Cache Status HIT Evidence x-served-by: cache-toj-leto2350045-TOJ
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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