Rank #3,885Updated November 10, 2026
ndl.go.jp
国立国会図書館
The site runs on Nuxt, Vue.js, Google Analytics 4 and 4 other technologies. Its email security grade is D. Its SSL certificate is issued by Amazon and is valid for 62 more days.
- Domain age
- —
- Technologies
- 7
- Email security
- D
- SSL days left
- 62
DNS records
| Type | Value | TTL |
|---|---|---|
| A | 166.117.141.228 | 3600 |
| A | 75.2.78.160 | 3600 |
| MX | tn-vmw-mgw0002.ndl.go.jp 30 | 3600 |
| MX | tn-vmw-mgw0001.ndl.go.jp 10 | 3600 |
| NS | ns2.ndl.go.jp | 3600 |
| NS | ns3.ndl.go.jp | 3600 |
| NS | ns4.ndl.go.jp | 3600 |
| NS | ns.ndl.go.jp | 3600 |
| NS | dns-a.iij.ad.jp | 3600 |
| TXT | v=spf1 +mx +ip4:153.231.248.161 +ip4:153.231.248.162 +ip4:153.231.248.169 +ip4:153.231.248.170 +ip4:202.32.173.188 +ip4:133.159.67.120 +ip4:133.159.67.68 +ip4:133.159.67.133 include:spf.dox.jp include:webcas.net include:asp.cuenote.jp -all | 3600 |
Technology stack
Analytics
Programming language
Security
Analytics and advertising IDs
google_analytics:G-R98QLR2JK7SSL certificate
| Valid | Valid |
|---|---|
| Issuer | US, Amazon RSA 2048 M01, Amazon |
| Expires | January 11, 2027 |
| Days remaining | 62 |
| Protocol | TLSv1.3 |
| Names | ndl.go.jp |
Email security
DScore 50/100 across SPF, DMARC, DKIM, MTA-STS and BIMI.
- warnDMARC policy is none (monitoring only). Spoofed mail is still delivered.
- warnNo DKIM key found at common selectors (google, selector1, selector2, default, k1, k2, s1, s2, ...). DKIM may still use a custom selector we cannot guess.
- 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 aggregate reports are sent to mailto:[email protected].
- good2 MX record(s) found.
Homepage metadata
| Title | 国立国会図書館 |
|---|---|
| Description | 国立国会図書館の公式ウェブサイトです。当館は、国内外の資料・情報を広く収集・保存して、知識・文化の基盤となり、国会の活動を補佐するとともに、行政・司法及び国民に図書館サービスを提供しています。 |
| Language | ja |
| Structured data | BreadcrumbList, WebSite, Article |
| Indexable | Yes |
| Word count | 84 |
About ndl.go.jp
What technology does ndl.go.jp use?
We detected 7 technologies on ndl.go.jp, including Google Analytics 4, Amazon CloudFront, Nuxt, Vue.js, Node.js, Content Security Policy.
Does ndl.go.jp protect its email with SPF and DMARC?
ndl.go.jp scores 50/100 (grade D) for email security. DMARC policy is none (monitoring only). Spoofed mail is still delivered. No DKIM key found at common selectors (google, selector1, selector2, default, k1, k2, s1, s2, ...). DKIM may still use a custom selector we cannot guess.
What are the name servers of ndl.go.jp?
ndl.go.jp uses ns2.ndl.go.jp, ns3.ndl.go.jp, ns4.ndl.go.jp, ns.ndl.go.jp, dns-a.iij.ad.jp.