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: CCBot
Disallow: /
User-Agent: GPTBot
Disallow: /
User-Agent: ChatGPT-User
Disallow: /
User-Agent: OAI-SearchBot
Disallow: /
User-Agent: Google-Extended
Disallow: /
User-Agent: ICC-Crawler
Disallow: /
User-Agent: ClaudeBot
Disallow: /
User-Agent: anthropic-ai
Disallow: /
User-Agent: Claude-Web
Disallow: /
User-Agent: PerplexityBot
Disallow: /
User-Agent: Perplexity-ai
Disallow: /
User-Agent: Applebot-Extended
Disallow: /
User-Agent: cohere-ai
Disallow: /
User-Agent: Meta-ExternalAgent
Disallow: /
User-Agent: Gensparkbot
Disallow: /
No sitemap found
Adding a sitemap helps search engines discover your pages.
BTLS Certificate Expiry & Recommendations316 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, 37 ms lookupPASS
| A | 13.227.231.16, 13.227.231.45, 13.227.231.53, 13.227.231.8 |
| AAAA | — |
| CNAME | — |
| NS | ns-1828.awsdns-36.co.uk, ns-449.awsdns-56.com, ns-763.awsdns-31.net, ns-1113.awsdns-11.org |
| MX | — |
| TXT | google-site-verification=L-w9Raocy3xEi6yDlgp0GTj29XbYjWQFFjbVdtwmk8E |
| 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)
A+Redirect ChainNo redirects — direct accessPASS
https://mainichi.jp
1116 ms · HTTP/1.1 FINAL
| # | URL | Status | Time | Protocol | Server |
|---|---|---|---|---|---|
| 1 | https://mainichi.jp | 200 | 1116 ms | HTTP/1.1 | Apache |
A+URL Variantswww/non-www, trailing slash, HTTP→HTTPSPASS
www / non-www
Preferred variant: non-www
HTTP → HTTPS
Consistent
A+Domain Intelligencemainichi.jp — hosted on AWSPASS
Unknown
316 days
Issued by Cybertrust Japan Co., Ltd.
Unknown
Status unknown
Protects against DNS spoofing
AWS
ASN AS16509
13.227.231.8
Registrar unknown