Infrastructure
· 9 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.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
BCrawlabilityrobots.txt present, no sitemapREVIEW
A sitemap helps search engines discover and index your pages more efficiently.
No sitemap.xml — Google relies on crawl-graph discovery alone, slowing indexing of deep or fresh URLs.
Learn more ▾ ▴
A sitemap accelerates Google's discovery of new and updated content. Most CMSes auto-generate one; static-site frameworks need a build-step plugin. Reference it from robots.txt and submit in Search Console to confirm Google can fetch it.
Source: sitemaps.org / Google Search Central
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: /ref
No sitemap found
Adding a sitemap helps search engines discover your pages.
BTLS Certificate Expiry & Recommendations55 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 Records2 A records, 4 ms lookupPASS
| A | 172.64.147.222, 104.18.40.34 |
| AAAA | — |
| CNAME | — |
| NS | crystal.ns.cloudflare.com, henrik.ns.cloudflare.com |
| MX | 10 aspmx.l.google.com 20 alt1.aspmx.l.google.com 30 alt2.aspmx.l.google.com 40 aspmx2.googlemail.com 50 aspmx3.googlemail.com |
| TXT | google-site-verification=cZBLdfOjetEyJ2-TfwKjxqYWO7V9O85fBPICYbTRcis google-site-verification=noby9wv6iwYFjpNOnO6386pgNR1hi56teInZIqYSCtk SPF v=spf1 include:amazonses.com include:_spf.google.com ~all |
| 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.
A+Redirect ChainNo redirects — direct accessPASS
https://carrd.co
22 ms · HTTP/1.1 FINAL
| # | URL | Status | Time | Protocol | Server |
|---|---|---|---|---|---|
| 1 | https://carrd.co | 200 | 22 ms | HTTP/1.1 | cloudflare |
A+URL Variantswww/non-www, trailing slash, HTTP→HTTPSPASS
www / non-www
Preferred variant: non-www
HTTP → HTTPS
Consistent
A+Domain Intelligencecarrd.co — via MarkMonitor, Inc., 11 years, 1 months old, hosted on CloudflarePASS
653 days
April 29, 2028
55 days
Issued by Google Trust Services
11 years, 1 months
Registered April 30, 2015
Status unknown
Protects against DNS spoofing
Cloudflare
ASN AS13335
104.18.40.34
MarkMonitor, Inc.
Expiry timeline
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