Infrastructure - https://dol.gov BeaverCheck Audit

C

IPv6 Readiness

Action

No IPv6 support

REVIEW

No IPv6 support

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

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.dol.gov/

200https://dol.gov/

Inconsistent — duplicate content risk

HTTP → HTTPS

301http://dol.gov/ → https://dol.gov/

Consistent

B

TLS Certificate Expiry & Recommendations

78 days until leaf cert expires — 3 issues to address

REVIEW

Certificate validity

78

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
Add the preload directive and submit to hstspreload.org once max-age + includeSubDomains are in place
Enable OCSP stapling on your TLS server to remove a CA roundtrip and protect user privacy

B

CDN & Delivery

Varnish

REVIEW

Varnish

Site is served via Varnish CDN

Got: via: 1.1 varnish (Varnish/7.1)

CDN Detected: Varnish

Provider Varnish Evidence via: 1.1 varnish (Varnish/7.1)

A+

DNS Records

1 A records, 5 ms lookup

PASS

1 A records, 5 ms lookup

Resolves to 1 IPv4 address(es)

Got: 52.188.77.219

Single A record — no DNS redundancy

Multiple A records provide failover if one server goes down.

No IPv6 (AAAA) records

6 nameserver(s) configured

Got: a5-64.akam.net, a6-65.akam.net, a7-66.akam.net, a1-165.akam.net, a10-66.akam.net, a24-67.akam.net

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: 5 ms

Got: 5 ms

A	52.188.77.219
AAAA	—
CNAME	—
NS	a5-64.akam.net, a6-65.akam.net, a7-66.akam.net, a1-165.akam.net, a10-66.akam.net, a24-67.akam.net
MX	0 dol-gov.mail.protection.outlook.com
TXT	8573-A2D1-A4EF-C907-5E3C-D644-6768-6016 apple-domain-verification=xCGGbDf5AaGeNchp amazonses:3SbdwG5d/8taLGGTiYik9mzT84IZ6ld+BJdWnC2+gcc= openai-domain-verification=dv-xu3a2Cf558Aj5VPjqXq657WW SPF v=spf1 include:mtas.dol.gov include:spf.protection.outlook.com -all google-site-verification=gfTACCLcn7V76Uf680tjRyTsve8tRlE0dh5Y6t9fsso 5utT/F1eHYxWAA/b5lPn9hm5i7J6vK5X1muo1bi5csbi5UZ/9nF0sLG/OCOY34ixKaf/9Y6pfgfGFLWG... jm1QbIy0MJmuRAx4Fmxzi186kWpB/NZcWxAnB7cdXDqYdPVBNYF4PiOd1q6h0aCEs7nZWJ8c7tvargkX... adobe-idp-site-verification=4fa9e63eaa2f46f118bd543f1f72bedead717ae903b489fd155e...
CAA	Lookup not available with standard resolver

Resolved in 5 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), 366 ms total

PASS

1 redirect(s), 366 ms total

Single redirect

Got: https://dol.gov → https://www.dol.gov/ (301)

WWW normalization redirect

https://dol.gov

346 ms · HTTP/1.1

301

https://www.dol.gov/

20 ms · HTTP/1.1 FINAL

#	URL	Status	Time	Protocol	Server
1	https://dol.gov	301	346 ms	HTTP/1.1
2	https://www.dol.gov/	200	20 ms	HTTP/1.1	nginx/1.30.0

See the visual redirect chain in the HTTP Probe tab →

A+

Crawlability

robots.txt present, sitemap with 25 URLs

PASS

robots.txt present, sitemap with 25 URLs

robots.txt is present

Got: 2027 bytes

sitemap.xml is present

sitemap.xml is valid XML

sitemap.xml contains 25 entries

Sitemap index with 25 child sitemaps

robots.txt does not reference a sitemap

Add a 'Sitemap:' directive to robots.txt so search engines can discover your sitemap.

Why this matters

robots.txt omits Sitemap: directive — crawlers must fetch /sitemap.xml by convention; reliable but missing the explicit hint.

Source: sitemaps.org

robots.txt 200 OK

Size 2027 B Sitemaps referenced 0 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
Disallow: /web.config
# 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
# 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

sitemap.xml 200 OK

Type Sitemap Index URLs 25 entries Valid XML Yes

Child Sitemaps:

A+

Domain Intelligence

dol.gov — via get.gov, 28 years, 11 months old, hosted on Microsoft Azure

PASS

dol.gov — via get.gov, 28 years, 11 months old, hosted on Microsoft Azure

Domain registered until Sep 9, 2026 (4 months remaining)

DNSSEC is enabled

Registrar: get.gov

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.

Hosting: Microsoft Azure

Got: AS8075

Domain expiry

86 days

September 9, 2026

SSL certificate

78 days

Issued by Let's Encrypt

Domain age

28 years, 11 months

Registered October 2, 1997

DNSSEC

Enabled

Protects against DNS spoofing

Hosting

Microsoft Azure

ASN AS8075

52.188.77.219

Registrar

get.gov

Unlocked 6 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
Enable registrar lock (clientTransferProhibited) to block unauthorized domain transfers

Registrar get.gov

Created October 2, 1997 (28 years, 11 months ago)

Expires September 9, 2026 (4 months)

Last Updated September 14, 2025

Name Servers a1-165.akam.net, a10-66.akam.net, a24-67.akam.net, a5-64.akam.net, a6-65.akam.net, a7-66.akam.net

DNSSEC Enabled

Registrant REDACTED FOR PRIVACY

Hosting

IP Address 52.188.77.219

ASN AS8075 (MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation, US)

Provider Microsoft Azure

Data source: rdap (0.4s)

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 362 ms — DNS, TCP, TLS, TTFB, content transfer breakdown

PASS

DNS Lookup

4 ms

TCP Connect

88 ms

TLS Handshake

179 ms

Time to First Byte

363 ms

Total Time

363 ms

Connection waterfall

DNS Lookup 4 ms TCP Connect 88 ms TLS Handshake 179 ms Server Processing 91 ms Content Transfer 0 ms