Infrastructure
· 9 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.BRedirect Chain1 redirect(s), 1382 ms totalREVIEW
https://mimecast.com
204 ms · HTTP/1.1
https://www.mimecast.com/
1178 ms · HTTP/1.1 FINAL
| # | URL | Status | Time | Protocol | Server |
|---|---|---|---|---|---|
| 1 | https://mimecast.com | 301 | 204 ms | HTTP/1.1 | |
| 2 | https://www.mimecast.com/ | 200 | 1178 ms | HTTP/1.1 |
See the visual redirect chain in the HTTP Probe tab →
CIPv6 ReadinessActionNo IPv6 supportREVIEW
IPv6 support is increasingly important for global accessibility. About 40% of internet users have IPv6 connectivity.
No AAAA records — same impact as 'no IPv6 (AAAA) records'; IPv6-preferring clients pay extra latency falling back to IPv4.
Source: Google IPv6 stats
BURL Variantswww/non-www, trailing slash, HTTP→HTTPSREVIEW
www / non-www
Inconsistent — duplicate content risk
HTTP → HTTPS
Consistent
BTLS Certificate Expiry & Recommendations220 days until leaf cert expires — 3 issues to addressREVIEW
Certificate validity
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
BCDN & DeliveryVarnishREVIEW
ADNS Records1 A records, 1107 ms lookupPASS
| A | 103.107.226.226 |
| AAAA | — |
| CNAME | — |
| NS | dns03.mimecast.net, dns02.mimecast.net, dns01.mimecast.net, dns04.mimecast.net |
| MX | 10 service-alpha-inbound-b.mimecast.com 10 service-alpha-inbound-a.mimecast.com |
| TXT | miro-verification=962e0bf9f60f1a1fc2e48ccce0e009b7dd4ca754 drift-domain-verification=673004e7102db462b76d72b49a2aa2f0948de42f859e69fefebb03... docker-verification=cc508638-4f67-4486-8043-ce17243de5cc _snmc0dy6yedgbxdtnag5bpm1j6m1c7m r9ffvqvn3lzqjntgng3b1n0tt1pdhs0w kiro-site-verification=38d23567-b104-4a99-a5b3-56050f9ddb31 docusign=a975f19c-4ea8-4d81-a277-b1c8eac0b50c figma-domain-verification=df1507af1380333d3aa590ac61423d853b53b56471355ae5c95d92... box-domain-verification=05b7e9a72c979ba0c07ca460b6daceecf4578ffa6b7dea530815794c... cursor-domain-verification-6g4h1p=P7sNX6iIllfLVAwnNYVWUM05Z atlassian-domain-verification=o46uxiY17PUJ2PcFuz9D4GTUr8f4eY895lZy8s22BZij9sEKkO... _8c3jko6yhagmu9aj0re99v35piez8mx SPF v=spf1 redirect=aojpw1q8._spf._d.mim.ec dhnhwx5y55g27sj1xrngkjd5n6bdlffl MS=ms33346375 jamf-site-verification=Jit5-Uf2KqE-HlASlKZPyA 4xLha-tpX5JFdVtBWS5WC8jkjB1EEx5u atlassian-sending-domain-verification=379b5e3d-d37e-4484-9b79-d643e25de749 google-site-verification=fedypP00EQfWF3QIChBj2kgHwODJEgMg1WUde21A-hE kz87t95n047tq39ywhk4nysf9y1v1rdg anthropic-domain-verification-r5xarz=7s5piFk2wCCr5jrOSwU9qEV6p google-site-verification=TCtQARZdwqYz00QUGEaqKG6TpDRPxLnA0xjvOr1L7WE google-site-verification=QItWdZyz7z1CYXD0Gsx5_HXdktCfHjTBXEMOAF1Fo70 _yclqkkax7f9kmspblryk24940cqh2t2 duo_sso_verification=ARujfCK13RBmfiGTUMzsraJDE6Kb1Yl549uRQOAFeQDMo6JkehyNoO9P3sX... gNg-j90w13dr-_ZlXyB6OcWL jttl8lbdwhvcgz26b4qjnr7vg3cjjmpr _globalsign-domain-verification=GeBngTn9j8-utE2irGheYZSAXx6u5iGMQcd_tKlAgN _bchwgepnjrsw3szh7bco05rkvnwyhgv |
| 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+Crawlabilityrobots.txt present, sitemap with 5 URLsPASS
User-Agent: *
Allow: /
Sitemap: https://www.mimecast.com/sitemap.xml
A+Domain Intelligencemimecast.com — via MarkMonitor Inc., 23 years, 6 months old, hosted on SECTIONIO-AS-AP SQUIXA PTY LIMITED, AUPASS
2373 days
December 13, 2032
220 days
Issued by DigiCert Inc
23 years, 6 months
Registered February 20, 2003
Not enabled
Protects against DNS spoofing
SECTIONIO-AS-AP SQUIXA PTY LIMITED, AU
ASN AS136133
103.107.226.226
MarkMonitor Inc.
Expiry timeline
Recommended actions
- Enable DNSSEC to protect visitors from DNS spoofing
- Enable registrar lock (clientTransferProhibited) to block unauthorized domain transfers
DNSSEC protects against DNS spoofing attacks. While not required, enabling DNSSEC adds an additional layer of security. Contact your DNS provider to enable it.
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.
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