Infrastructure
· 9 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.DHTTP Probe TimingActionTotal 2589 ms — DNS, TCP, TLS, TTFB, content transfer breakdownFIX
Connection waterfall
DCDN & DeliveryActionNo CDN detectedFIX
Consider using a CDN to improve global delivery speed and reduce origin load.
BDNS Records2 A records, 309 ms lookupREVIEW
| A | 27.155.113.155, 116.211.128.150 |
| AAAA | 2409:8c04:1101:3050::406, 240e:95c:806:40::422 |
| CNAME | ce5c4cf757a9a3e1.cname.365cyd.cn |
| NS | ns2.365cyd.net, ns1.kangdns.com, ns1.365cyd.net, ns2.jiasule.net, ns2.kangdns.com, ns1.jiasule.net |
| MX | — |
| TXT | — |
| CAA | Lookup not available with standard resolver |
A CNAME at the zone apex can break MX and NS records. Use ALIAS/ANAME or A records instead.
CNAME at the apex (example.com) breaks every other apex record (MX, TXT, NS) — DNS-protocol violation per RFC 1034.
Learn more ▾ ▴
RFC 1034 forbids CNAME alongside other records at the same name. Some DNS providers offer ALIAS / ANAME / flattened-CNAME records that work around this — use those instead. Otherwise apex-level CNAME breaks email (no MX), domain ownership verification (no TXT), and more.
Source: RFC 1034
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.
SPF helps prevent email spoofing. Add a TXT record starting with 'v=spf1'.
Without SPF, receiving servers can't validate sending IPs — your domain is easier to spoof in phishing.
Learn more ▾ ▴
SPF complements DMARC. Both should be published. SPF records list authorized sending IPs (e.g., `v=spf1 include:_spf.google.com ~all` for Google Workspace). After publishing, verify in Google Postmaster Tools or mxtoolbox.
Source: RFC 7208 (SPF)
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
BURL Variantswww/non-www, trailing slash, HTTP→HTTPSREVIEW
www / non-www
HTTP → HTTPS
HTTP version does not redirect to HTTPS
BTLS Certificate Expiry & Recommendations176 days until leaf cert expires — 5 issues to addressREVIEW
Certificate validity
Recommended actions
- Extend HSTS max-age to at least 31536000 (1 year) to meet the preload list criteria
- Add includeSubDomains to the HSTS directive
- Add the preload directive and submit to hstspreload.org once max-age + includeSubDomains are in place
- 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+Redirect ChainNo redirects — direct accessPASS
https://www.beijing.gov.cn
736 ms · HTTP/1.1 FINAL
| # | URL | Status | Time | Protocol | Server |
|---|---|---|---|---|---|
| 1 | https://www.beijing.gov.cn | 200 | 736 ms | HTTP/1.1 |
A+IPv6 ReadinessIPv6 reachable (170 ms)PASS
A+Crawlabilityrobots.txt present, sitemap with 125 URLsPASS
User-agent: *
Disallow:/sd
Sitemap: http://www.beijing.gov.cn/sitemap_1701.xml
Sitemap: http://www.beijing.gov.cn/hudong/jianyi/sitemap.xml
Sitemap: https://www.beijing.gov.cn/hudong/wsdc/sitemap_42374.xml
Sitemap: https://www.beijing.gov.cn/hudong/hdjl/common/site/hdjl/sitemap.xml
Sitemap: http://www.beijing.gov.cn/shipin/sitemaps.xml
- https://www.beijing.gov.cn/fwcj/calendar/zlzh/69e5f64b4742167c662a02e1.html
- https://www.beijing.gov.cn/tsbj/sxym/202604/t20260421_4600065.html
- https://www.beijing.gov.cn/fuwu/bmfw/sy/jrts/202604/t20260421_4600018.html
- https://www.beijing.gov.cn/ywdt/gzdt/202604/t20260421_4599979.html
- https://www.beijing.gov.cn/ywdt/gzdt/202604/t20260421_4599967.html
ADomain Intelligencebeijing.gov.cn — via 北京首信网创网络信息服务有限责任公司, 28 years, 3 months old, hosted on CMNET-V4HEBEI-AS-AP Hebei Mobile Communication Company Limited, CNPASS
EXPIRED
June 9, 2026
176 days
Issued by Beijing Xinchacha Credit Management Co., Ltd.
28 years, 3 months
Registered June 9, 1998
Status unknown
Protects against DNS spoofing
CMNET-V4HEBEI-AS-AP Hebei Mobile Communication Company Limited, CN
ASN AS24547
111.62.149.162
北京首信网创网络信息服务有限责任公司
Expiry timeline
Recommended actions
- Domain has EXPIRED — renew immediately to avoid total site outage
- Enable registrar lock (clientTransferProhibited) to block unauthorized domain transfers
Consider enabling auto-renewal to prevent accidental expiration.
Domain expiry approaching — renew immediately and ensure auto-renew + alerting are configured.
Source: ICANN renewal policy
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