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.
BRedirect Chain1 redirect(s), 1405 ms totalREVIEW
https://census.gov
960 ms · HTTP/1.0
https://www.census.gov/
446 ms · HTTP/1.1 FINAL
| # | URL | Status | Time | Protocol | Server |
|---|---|---|---|---|---|
| 1 | https://census.gov | 302 | 960 ms | HTTP/1.0 | |
| 2 | https://www.census.gov/ | 200 | 446 ms | HTTP/1.1 | cloudflare |
See the visual redirect chain in the HTTP Probe tab →
If permanent, use 301 instead.
302 (Found) is for genuinely temporary redirects — if this redirect is permanent, switch to 301 to preserve SEO equity.
Learn more ▾ ▴
Search engines treat 302 as temporary, keeping the original URL indexed and not transferring full link equity to the destination. Use 301 (Moved Permanently) for permanent redirects (HTTP→HTTPS, www-vs-non-www, URL restructures).
Source: Google Search Central
CURL VariantsActionwww/non-www, trailing slash, HTTP→HTTPSREVIEW
www / non-www
Inconsistent — duplicate content risk
HTTP → HTTPS
Use 301 (permanent) instead of 302 (temporary)
BHTTP Probe TimingTotal 1084 ms — DNS, TCP, TLS, TTFB, content transfer breakdownREVIEW
Connection waterfall
BTLS Certificate Expiry & Recommendations157 days until leaf cert expires — 3 issues to addressREVIEW
Certificate validity
Recommended actions
- Prefer TLS 1.3 — TLS 1.2 is acceptable but TLS 1.3 removes RSA key exchange and improves latency
- Enable HSTS: Strict-Transport-Security: max-age=31536000; includeSubDomains
- Enable OCSP stapling on your TLS server to remove a CA roundtrip and protect user privacy
ADNS Records1 A records, 278 ms lookupPASS
| A | 148.129.75.166 |
| AAAA | 2610:20:2010:a05:1000:0:9481:4ba6 |
| CNAME | — |
| NS | ns1e.census.gov, ns2e.census.gov |
| MX | 50 mail1.census.gov 50 mail2.census.gov |
| TXT | adobe-idp-site-verification=c75e766ae664774cb9d671205f69ba1bbb97fbacb49c55d78725... apple-domain-verification=2jIC5VNEsj8bPdnu google-site-verification=5gdefaxvKpVMBIGemF2Dw4yBrtDazSNnprwC3sLsrUE SPF v=spf1 ip4:148.129.0.0/16 ip6:2610:20:2000:101::f:0 ip6:2610:20:2010:a04::f:0 mx... google-site-verification=OMpp6MyQ1bAbnGclpbKqCMZal_1HxJapzG2tSRWFbzI +i27enlfMpLlk9UWn4Ku+sUy3QO5Lnbysj+2rdvlyfPtq28iCTuH3b9ZnVWcYbhtrY1f1H9xsXT74U75... infoblox-domain-mastery=578e129560f03adc81a7b3f658065459be516b52709d8fde2b1183b7... MS=ms38105103 google-site-verification=KnpcXkPcji6vLLd7Scev-xZMllMdI8f75Ibi--S4lzI apple-domain-verification=A8NwvlnLg7Cm2H3G airtable-verification=3602865d8095935581ec510122a7f819 |
| 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.
Slow DNS adds latency to every page load. Consider a faster DNS provider.
DNS resolution is slow — anycast DNS providers (Cloudflare, Route 53) typically resolve <50ms globally.
Source: DNS performance benchmarks
A+IPv6 ReadinessIPv6 reachable (104 ms)PASS
A+Crawlabilityrobots.txt present, sitemap with 14 URLsPASS
User-agent: *
Disallow: /search-results.html
User-agent: W3C-checklink
Disallow: /cgi-bin/
Disallow: /libs/
Disallow: /tmp/
Disallow: /etc/
Disallow: /about/adrm/data-linkage/
allow: /etc.clientlibs/census/clientlibs
allow: /etc/clientlibs/granite
allow: /etc/clientlibs/foundation
User-agent: Googlebot
Crawl-delay: 15
Disallow: /cgi-bin/
Disallow: /libs/
Disallow: /tmp/
Disallow: /etc/
Disallow: /about/adrm/data-linkage/
allow: /etc.clientlibs/census/clientlibs
allow: /etc/clientlibs/granite
allow: /etc/clientlibs/foundation
User-agent: Yahoo! Slurp
Crawl-delay: 3
Disallow: /cgi-bin/
Disallow: /libs/
Disallow: /tmp/
Disallow: /etc/
Disallow: /about/adrm/data-linkage/
allow: /etc.clientlibs/census/clientlibs
allow: /etc/clientlibs/granite
allow: /etc/clientlibs/foundation
User-agent: bingbot
Crawl-delay: 3
Disallow: /cgi-bin/
Disallow: /libs/
Disallow: /tmp/
Disallow: /etc/
Disallow: /about/adrm/data-linkage/
allow: /etc.clientlibs/census/clientlibs
allow: /etc/clientlibs/granite
allow: /etc/clientlibs/foundation
User-agent: usasearch
Disallow: /quickfacts/
Noindex: /quickfacts/
SITEMAP: https://www.census.gov/sitemapindex/sitemap.xml
- https://www.census.gov/sitemapindex/cens...
- https://www.census.gov/sitemapindex/stor...
- https://www.census.gov/sitemapindex/publ...
- https://www.census.gov/sitemapindex/work...
- https://www.census.gov/sitemapindex/visu...
- https://www.census.gov/sitemapindex/phot...
- https://www.census.gov/sitemapindex/vide...
- https://www.census.gov/sitemapindex/fact...
- https://www.census.gov/sitemapindex/blog...
- https://www.census.gov/sitemapindex/pres...
- https://www.census.gov/sitemapindex/pres...
- https://www.census.gov/sitemapindex/data...
- https://www.census.gov/sitemapindex/tabl...
- https://www.census.gov/quickfacts/fact/s...
A+Domain Intelligencecensus.gov — via get.gov, 28 years, 11 months oldPASS
79 days
September 2, 2026
157 days
Issued by DigiCert Inc
28 years, 11 months
Registered October 2, 1997
Enabled
Protects against DNS spoofing
Unknown
2610:20:2010:a05:1000:0:9481:4ba6
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