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.
BTLS Certificate Expiry & Recommendations85 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
A+DNS Records4 A records, 110 ms lookupPASS
| A | 216.239.36.21, 216.239.32.21, 216.239.34.21, 216.239.38.21 |
| AAAA | 2001:4860:4802:34::15, 2001:4860:4802:38::15, 2001:4860:4802:36::15, 2001:4860:4802:32::15 |
| CNAME | — |
| NS | ns3.google.com, ns1.google.com, ns4.google.com, ns2.google.com |
| MX | 0 smtp.google.com |
| TXT | — |
| CAA | Lookup not available with standard resolver |
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)
ARedirect Chain1 redirect(s), 708 ms totalPASS
https://material.io
357 ms · HTTP/1.1
https://m3.material.io/
351 ms · HTTP/1.1 FINAL
| # | URL | Status | Time | Protocol | Server |
|---|---|---|---|---|---|
| 1 | https://material.io | 301 | 357 ms | HTTP/1.1 | Google Frontend |
| 2 | https://m3.material.io/ | 200 | 351 ms | HTTP/1.1 | Google Frontend |
See the visual redirect chain in the HTTP Probe tab →
A+IPv6 ReadinessIPv6 reachable (2 ms)PASS
A+Crawlabilityrobots.txt present, sitemap with 372 URLsPASS
Add a 'Sitemap:' directive to robots.txt so search engines can discover your sitemap.
robots.txt omits Sitemap: directive — crawlers must fetch /sitemap.xml by convention; reliable but missing the explicit hint.
Source: sitemaps.org
User-agent: * Disallow: /archive Disallow: /search.html
A+URL Variantswww/non-www, trailing slash, HTTP→HTTPSPASS
www / non-www
Preferred variant: non-www
HTTP → HTTPS
Consistent
A+Domain Intelligencematerial.io — via MarkMonitor Inc., 12 years, 8 months oldPASS
EXPIRED
October 4, 2026
85 days
Issued by Google Trust Services
12 years, 8 months
Registered October 4, 2013
Status unknown
Protects against DNS spoofing
Unknown
2001:4860:4802:34::15
MarkMonitor Inc.
Expiry timeline
Recommended actions
- Domain has EXPIRED — renew immediately to avoid total site outage
Domain cannot be transferred without explicit unlock from the registrar. This protects against unauthorized transfers.
Registrar lock (clientTransferProhibited et al.) prevents unauthorized domain transfers — strongest defense against domain hijacking.
Source: ICANN / domain-security best practice