Infrastructure
· 9 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.DCDN & DeliveryActionNo CDN detectedFIX
Consider using a CDN to improve global delivery speed and reduce origin load.
BURL Variantswww/non-www, trailing slash, HTTP→HTTPSREVIEW
www / non-www
Inconsistent — duplicate content risk
HTTP → HTTPS
Consistent
BTLS Certificate Expiry & Recommendations98 days until leaf cert expires — 3 issues to addressREVIEW
Certificate validity
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 OCSP stapling on your TLS server to remove a CA roundtrip and protect user privacy
A+DNS Records1 A records, 82 ms lookupPASS
| A | 104.85.50.85 |
| AAAA | 2a02:26f0:680:4a3::28a, 2a02:26f0:680:483::28a |
| CNAME | — |
| NS | a3-66.akam.net, a1-86.akam.net, a8-67.akam.net, a10-67.akam.net, a13-64.akam.net, a24-65.akam.net |
| MX | 10 primary.us.etp.fireeyegov.com 20 alt1.us.etp.fireeyegov.com 30 alt2.us.etp.fireeyegov.com 40 alt3.us.etp.fireeyegov.com |
| TXT | identrust_validate=JDXQyrvdi4u4csBVW53QJrn58NGFNML/YX9w8UtRx3WF _qm4av6bzsp5uujahwa11fsttdhvxzv9 webexdomainverification.KR4G=d2e70405-10af-4863-bc64-388ca30ea4d4 G7+0noMBL6fSl8UVSBtZmj35+02tBOTulPKWucrYjkLJFMZz21/GxFxVzTMDYCjNXRIdENxZHifEHLds... MS=ms27639832 webexdomainverification.3MUBG=00360c1a-741f-4d9f-983a-55d0a63cdc92 google-site-verification=yuNrclUiclwAtByggN3Jae8WgxDsb6CjtRpPD-EPjXY google-site-verification=sMIzpCg2oaPmasINAKfMmE9mOmdZRxL0myxnvSlIUOk webexdomainverification.KR46=1f876bb9-300d-49ad-bf2b-74b544bc5efa SPF v=spf1 ip4:15.200.33.0/24 ip4:15.200.32.0/24 ip4:63.88.93.240/28 ip4:158.72.139.... identrust_validate=t41124Xnt5NJgr+E8ne/qqL2LpycASgSenCxnQdzssO4 google-site-verification=MdcB5nKEy-LwlvUBhBoh3YTH01HW1OZNszN9b-C4HV8 identrust_validate=3RmnW/hkqKXUGdB9rQVSUxgwI6kLD3XsbHJh0jZyq2n/ webexdomainverification.3MUDJ=0d5d8346-7f34-4cc3-84c1-28f4eb80829f webexdomainverification.KR4B=358c3255-c680-4387-b8f3-38a73619240e ed5vo0xgnd identrust_validate=UUQCTX9hak2EePyL9SYBOliViCCAiRhPmlyycwfCy/o8 MS=ms59622794 webexdomainverification.KR41=b9eafa45-e96e-4b68-a167-4740e31ccd75 ciscocidomainverification=f1d51662d07e32cdf508fe2103f9060ac5ba2f9efeaa79274003d1... |
| CAA | Lookup not available with standard resolver |
Multiple A records provide failover if one server goes down.
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.
Informational: CAA (Certification Authority Authorization) records weren't checked in this scan.
ARedirect Chain1 redirect(s), 114 ms totalPASS
https://cms.gov
60 ms · HTTP/1.1
https://www.cms.gov/
54 ms · HTTP/1.1 FINAL
| # | URL | Status | Time | Protocol | Server |
|---|---|---|---|---|---|
| 1 | https://cms.gov | 301 | 60 ms | HTTP/1.1 | |
| 2 | https://www.cms.gov/ | 200 | 54 ms | HTTP/1.1 |
See the visual redirect chain in the HTTP Probe tab →
A+IPv6 ReadinessIPv6 reachable (17 ms)PASS
A+Crawlabilityrobots.txt present, sitemap with 74 URLsPASS
#
# 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/
Disallow: /node/
Disallow: /media/
# Files
Disallow: /README.txt
Disallow: /web.config
# Paths with query strings
Allow: /sitemap.xml?
Allow: /medicare-coverage-database/*?
Disallow: /*?
# Paths (clean URLs)
Disallow: /admin/
Disallow: /comment/reply/
Disallow: /filter/tips
Disallow: /node/add/
Disallow: /user/
Disallow: /es/
# Paths (no clean URLs)
Disallow: /index.php/
# Sitemap
Sitemap: https://www.cms.gov/sitemap.xml
- https://www.cms.gov/sitemap.xml?page=1
- https://www.cms.gov/sitemap.xml?page=2
- https://www.cms.gov/sitemap.xml?page=3
- https://www.cms.gov/sitemap.xml?page=4
- https://www.cms.gov/sitemap.xml?page=5
- https://www.cms.gov/sitemap.xml?page=6
- https://www.cms.gov/sitemap.xml?page=7
- https://www.cms.gov/sitemap.xml?page=8
- https://www.cms.gov/sitemap.xml?page=9
- https://www.cms.gov/sitemap.xml?page=10
- https://www.cms.gov/sitemap.xml?page=11
- https://www.cms.gov/sitemap.xml?page=12
- https://www.cms.gov/sitemap.xml?page=13
- https://www.cms.gov/sitemap.xml?page=14
- https://www.cms.gov/sitemap.xml?page=15
- https://www.cms.gov/sitemap.xml?page=16
- https://www.cms.gov/sitemap.xml?page=17
- https://www.cms.gov/sitemap.xml?page=18
- https://www.cms.gov/sitemap.xml?page=19
- https://www.cms.gov/sitemap.xml?page=20
- https://www.cms.gov/sitemap.xml?page=21
- https://www.cms.gov/sitemap.xml?page=22
- https://www.cms.gov/sitemap.xml?page=23
- https://www.cms.gov/sitemap.xml?page=24
- https://www.cms.gov/sitemap.xml?page=25
- https://www.cms.gov/sitemap.xml?page=26
- https://www.cms.gov/sitemap.xml?page=27
- https://www.cms.gov/sitemap.xml?page=28
- https://www.cms.gov/sitemap.xml?page=29
- https://www.cms.gov/sitemap.xml?page=30
- https://www.cms.gov/sitemap.xml?page=31
- https://www.cms.gov/sitemap.xml?page=32
- https://www.cms.gov/sitemap.xml?page=33
- https://www.cms.gov/sitemap.xml?page=34
- https://www.cms.gov/sitemap.xml?page=35
- https://www.cms.gov/sitemap.xml?page=36
- https://www.cms.gov/sitemap.xml?page=37
- https://www.cms.gov/sitemap.xml?page=38
- https://www.cms.gov/sitemap.xml?page=39
- https://www.cms.gov/sitemap.xml?page=40
- https://www.cms.gov/sitemap.xml?page=41
- https://www.cms.gov/sitemap.xml?page=42
- https://www.cms.gov/sitemap.xml?page=43
- https://www.cms.gov/sitemap.xml?page=44
- https://www.cms.gov/sitemap.xml?page=45
- https://www.cms.gov/sitemap.xml?page=46
- https://www.cms.gov/sitemap.xml?page=47
- https://www.cms.gov/sitemap.xml?page=48
- https://www.cms.gov/sitemap.xml?page=49
- https://www.cms.gov/sitemap.xml?page=50
- https://www.cms.gov/sitemap.xml?page=51
- https://www.cms.gov/sitemap.xml?page=52
- https://www.cms.gov/sitemap.xml?page=53
- https://www.cms.gov/sitemap.xml?page=54
- https://www.cms.gov/sitemap.xml?page=55
- https://www.cms.gov/sitemap.xml?page=56
- https://www.cms.gov/sitemap.xml?page=57
- https://www.cms.gov/sitemap.xml?page=58
- https://www.cms.gov/sitemap.xml?page=59
- https://www.cms.gov/sitemap.xml?page=60
- https://www.cms.gov/sitemap.xml?page=61
- https://www.cms.gov/sitemap.xml?page=62
- https://www.cms.gov/sitemap.xml?page=63
- https://www.cms.gov/sitemap.xml?page=64
- https://www.cms.gov/sitemap.xml?page=65
- https://www.cms.gov/sitemap.xml?page=66
- https://www.cms.gov/sitemap.xml?page=67
- https://www.cms.gov/sitemap.xml?page=68
- https://www.cms.gov/sitemap.xml?page=69
- https://www.cms.gov/sitemap.xml?page=70
- https://www.cms.gov/sitemap.xml?page=71
- https://www.cms.gov/sitemap.xml?page=72
- https://www.cms.gov/sitemap.xml?page=73
- https://www.cms.gov/sitemap.xml?page=74
A+Domain Intelligencecms.gov — via get.gov, 25 years, 2 months oldPASS
61 days
September 15, 2026
98 days
Issued by DigiCert Inc
25 years, 2 months
Registered June 20, 2001
Enabled
Protects against DNS spoofing
Unknown
2a02:26f0:680:483::28a
get.gov
Expiry timeline
Recommended actions
- Renew the domain or enable auto-renewal to prevent accidental expiry
- Enable registrar lock (clientTransferProhibited) to block unauthorized domain transfers
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.
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