Rank #931Updated November 10, 2026
b.hatena.ne.jp
はてなブックマーク
The site runs on Amazon CloudFront, HSTS, Google Tag Manager and 1 other technologies. Its email security grade is C. Its SSL certificate is issued by Amazon and is valid for 58 more days.
- Domain age
- —
- Technologies
- 4
- Email security
- C
- SSL days left
- 58
DNS records
| Type | Value | TTL |
|---|---|---|
| A | 18.64.211.116 | 1 |
| A | 18.64.211.54 | 1 |
| A | 18.64.211.86 | 1 |
| A | 18.64.211.69 | 1 |
| NS | ns-1269.awsdns-30.org | 172800 |
| NS | ns-1803.awsdns-33.co.uk | 172800 |
| NS | ns-342.awsdns-42.com | 172800 |
| NS | ns-745.awsdns-29.net | 172800 |
| TXT | google-site-verification=8LgDASN6vMoQRh8-pzj1uZ6YdMRwEVLmkC6u1RsoMh4 | 300 |
| TXT | google-site-verification=OiwrDLnHFIxHhqT-KhGTVHL1NyKyNE0ijZB2rNJAqeg | 300 |
Technology stack
Analytics and advertising IDs
google_tag_manager:GTM-5TDHQXSSL certificate
| Valid | Valid |
|---|---|
| Issuer | US, Amazon RSA 2048 M04, Amazon |
| Expires | January 7, 2027 |
| Days remaining | 58 |
| Protocol | TLSv1.3 |
| Names | *.b.hatena.ne.jp, b.hatena.ne.jp |
Email security
CScore 79/100 across SPF, DMARC, DKIM, MTA-STS and BIMI.
- warnNo MTA-STS: mail sent to you can be downgraded to an unencrypted connection.
- warnNo TLS-RPT record, so you won't hear about failed encrypted deliveries.
- warnNo BIMI record (optional: shows your logo next to your emails in supporting inboxes).
- goodSPF record found.
- goodSPF ends with -all: servers you have not listed are rejected (hard fail).
- goodDMARC policy is quarantine: failing mail goes to spam. Move to p=reject for full protection.
- goodDMARC aggregate reports are sent to mailto:[email protected].
- goodDKIM keys found (selector: google, s1, s2).
- good5 MX record(s) found. Mail is handled by Google Workspace.
Homepage metadata
| Title | はてなブックマーク |
|---|---|
| Description | はてなブックマークはオンラインにブックマークを無料で保存できるソーシャルブックマークサービスです。みんながブックマークしたインターネット上の旬なニュースや情報が集まります。 |
| Language | ja |
| Canonical | https://b.hatena.ne.jp/ |
| Indexable | Yes |
| Word count | 4289 |
About b.hatena.ne.jp
What technology does b.hatena.ne.jp use?
We detected 4 technologies on b.hatena.ne.jp, including Amazon CloudFront, HSTS, Google Tag Manager, Nginx.
Does b.hatena.ne.jp protect its email with SPF and DMARC?
b.hatena.ne.jp scores 79/100 (grade C) for email security. No MTA-STS: mail sent to you can be downgraded to an unencrypted connection. No TLS-RPT record, so you won't hear about failed encrypted deliveries.
What are the name servers of b.hatena.ne.jp?
b.hatena.ne.jp uses ns-1269.awsdns-30.org, ns-1803.awsdns-33.co.uk, ns-342.awsdns-42.com, ns-745.awsdns-29.net.