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https://biglobe.ne.jp

Infrastructure

· 9 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.
SCORE
75
GRADE
C
FIX
2
REVIEW
4
PASS
2
INFO
1
Probed from Madrid, Spain
200 OK
Checks
9
2 PASS 4 REVIEW 2 FIX
D
URL Variants
Action
www/non-www, trailing slash, HTTP→HTTPS
FIX
www/non-www, trailing slash, HTTP→HTTPS
Critical::
Both www and non-www versions serve content
Got: Both variants return 200 Expected: One variant 301-redirects to the other
Critical::
HTTP version does not redirect to HTTPS
Got: HTTP 200 Expected: 301 redirect to HTTPS

www / non-www

200https://www.biglobe.ne.jp/
200https://biglobe.ne.jp/

Inconsistent — duplicate content risk

HTTP → HTTPS

200http://biglobe.ne.jp/

HTTP version does not redirect to HTTPS

D
CDN & Delivery
Action
No CDN detected
FIX
No CDN detected
Warning::
No CDN detected
A CDN can significantly improve load times for users around the world by caching content at edge nodes closer to them.
No CDN detected

Consider using a CDN to improve global delivery speed and reduce origin load.

C
IPv6 Readiness
Action
No IPv6 support
REVIEW
No IPv6 support
Info::
No IPv6 (AAAA) records found
IPv6 support is increasingly important for global accessibility. About 40% of internet users have IPv6 connectivity.
No IPv6 Support
About 40% of internet users have IPv6. Consider adding AAAA records.

IPv6 support is increasingly important for global accessibility. About 40% of internet users have IPv6 connectivity.

Why this matters

No AAAA records — same impact as 'no IPv6 (AAAA) records'; IPv6-preferring clients pay extra latency falling back to IPv4.

Source: Google IPv6 stats

B
Crawlability
no robots.txt, no sitemap
REVIEW
no robots.txt, no sitemap
Info::
No robots.txt found
robots.txt is optional but recommended. It tells search engine crawlers which pages to index.
Info::
No sitemap.xml found
A sitemap helps search engines discover and index your pages more efficiently.

robots.txt is optional but recommended. It tells search engine crawlers which pages to index.

Why this matters

No robots.txt — crawlers fetch /robots.txt and get 404; not breaking but means default crawl behavior with no directives or sitemap reference.

Learn more ▾

A minimal robots.txt with `User-agent: * / Allow: / / Sitemap: https://example.com/sitemap.xml` covers the basics. Without it, crawlers behave fine but lose the sitemap signal and can't be selectively blocked from crawl-traps.

Source: robotstxt.org

A sitemap helps search engines discover and index your pages more efficiently.

Why this matters

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

robots.txt No robots.txt found

No robots.txt found

This is fine for most sites — a missing robots.txt allows all crawling by default.

sitemap.xml No sitemap found

No sitemap found

Adding a sitemap helps search engines discover your pages.

B
HTTP Probe Timing
Total 1126 ms — DNS, TCP, TLS, TTFB, content transfer breakdown
REVIEW
DNS Lookup DNS Lookup — time to resolve the domain name to an IP address.
256 ms
TCP Connect TCP Connect — time to establish a TCP connection to the server.
1 ms
TLS Handshake TLS Handshake — time to complete the HTTPS encryption handshake.
651 ms
Time to First Byte Time to First Byte — how long the server takes to respond with the first byte of data.
1.13 s
Total Time Total request time from DNS lookup through full response.
1.13 s

Connection waterfall

DNS Lookup 256 ms TCP Connect 1 ms TLS Handshake 651 ms Server Processing 219 ms Content Transfer 0 ms
B
TLS Certificate Expiry & Recommendations
303 days until leaf cert expires — 5 issues to address
REVIEW

Certificate validity

303
days left
0d 30d 60d 90d+

Recommended actions

  • Prefer TLS 1.3 — TLS 1.2 is acceptable but TLS 1.3 removes RSA key exchange and improves latency
  • 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
DNS Records
2 A records, 264 ms lookup
PASS
2 A records, 264 ms lookup
Info::
Resolves to 2 IPv4 address(es)
Got: 166.117.27.132, 166.117.152.144
Info::
No IPv6 (AAAA) records
Info::
2 nameserver(s) configured
Got: ns03.mesh.ad.jp, ns02.mesh.ad.jp
Info::
2 mail exchanger(s) configured
Info::
CAA records not checked
CAA record lookup requires a specialized DNS resolver. This check will be available in a future update.
Info::
SPF record present in TXT
Warning::
DNS resolution is slow (264 ms)
Slow DNS adds latency to every page load. Consider a faster DNS provider.
Got: 264 ms
A166.117.27.132, 166.117.152.144
AAAA—
CNAME—
NSns03.mesh.ad.jp, ns02.mesh.ad.jp
MX
10 bgmgate2.biglobe.ne.jp
10 bgmgate1.biglobe.ne.jp
TXT
_globalsign-domain-verification=STXfZ6FNEusl6P-fBJ7rsfKUQcq-1Ki0qOyUnavyNg
google-site-verification=JUMaUquHwMyxsWrnkh383BfrSyZxSWsfykphBuc4kQ0
SPF v=spf1 include:spf01.biglobe.ne.jp include:spf04.biglobe.ne.jp include:spf06.big...
pardot597131=c9583ad43c1caba51d7c49fbf41c375275a22d6eb3e5b791b229da70137c1c04
pardot597131=7bb58a057140d8ff160acda48615b9247116145b5f370c93f6efd133cd902da0
CAALookup not available with standard resolver
Resolved in 264 ms

CAA record lookup requires a specialized DNS resolver. This check will be available in a future update.

Why this matters

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.

Why this matters

DNS resolution is slow — anycast DNS providers (Cloudflare, Route 53) typically resolve <50ms globally.

Source: DNS performance benchmarks

A+
Redirect Chain
No redirects — direct access
PASS
No redirects — direct access
Info::
No redirects — direct access
Got: https://biglobe.ne.jp

https://biglobe.ne.jp

882 ms · HTTP/1.1 FINAL

#URLStatusTimeProtocolServer
1https://biglobe.ne.jp200882 msHTTP/1.1Apache
Domain Intelligence
Domain intelligence data not available
INFO
Domain intelligence data not available

RDAP and WHOIS lookup both failed

All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.

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