mathnote.info - robtex.com
mathnote.info
| DNSSEC | โ ๏ธ Not signed | ||||||
| A | 13.115.18.61๐ฏ๐ต Amazon13.112.0.0/14 EC2 NRT prefix | ||||||
| PTR | ec2-13-115-18-61.ap-northeast-1.compute.amazonaws.com | ||||||
| A | 13.230.115.161๐ฏ๐ต Amazon13.230.0.0/15 EC2 NRT prefix | ||||||
| NS | 01.dnsv.jp โญ | ||||||
| A | 2400:8500:3300::53๐ฏ๐ต GMO-DNS2400:8500:3300::/48 GMO Internet,inc. | ||||||
| PTR | 01.dnsv.jp | ||||||
| A | 157.7.32.53๐ฏ๐ต GMO-DNS157.7.32.0/24 GMO Internet,inc. Network-Team. | ||||||
| PTR | 01.dnsv.jp | ||||||
| NS | 02.dnsv.jp | ||||||
| A | 157.7.33.53๐ฏ๐ต GMO-DNS157.7.33.0/24 GMO Internet,inc. Network-Team. | ||||||
| PTR | 02.dnsv.jp | ||||||
| NS | 03.dnsv.jp | ||||||
| A | 2400:8500:3000::53๐ฏ๐ต GMO-DNS2400:8500:3000::/48 GMO Internet,inc. | ||||||
| PTR | 03.dnsv.jp | ||||||
| A | 157.7.34.53๐ฏ๐ต GMO-DNS157.7.34.0/24 GMO Internet,inc. Network-Team. | ||||||
| PTR | 03.dnsv.jp | ||||||
| NS | 04.dnsv.jp | ||||||
| A | 2400:8500:3fff::53๐ฏ๐ต GMO-DNS2400:8500:3fff::/48 GMO Internet,inc. | ||||||
| PTR | 04.dnsv.jp | ||||||
| A | 157.7.35.53๐ฏ๐ต GMO-DNS157.7.35.0/24 GMO Internet,inc. Network-Team. | ||||||
| PTR | 04.dnsv.jp | ||||||
| TXT | google-site-verification=r54zRDIcxKAgawh_5ZvJzxBOp_vzttOiV3tjk8Yf8TA | ||||||
| SOA | 01.dnsv.jphostmaster@dnsv.jp serial=1616256073 | ||||||
info
| DNSSEC | ๐ Signed (DS record present) | ||||||
| NS | a0.info.afilias-nst.info โญ | ||||||
| NS | a2.info.afilias-nst.info | ||||||
| NS | b0.info.afilias-nst.org โ ๏ธ Not in parent delegation | ||||||
| NS | b2.info.afilias-nst.org โ ๏ธ Not in parent delegation | ||||||
| NS | c0.info.afilias-nst.info | ||||||
| NS | d0.info.afilias-nst.org โ ๏ธ Not in parent delegation | ||||||
| SOA | a0.info.afilias-nst.infohostmaster@donuts.email serial=1778351565 | ||||||
Same first word
Similar names
DNS History
6 records (6 active, 0 former)
โA13.115.18.612026-04-04 โ 2026-05-09 ยท 2 obs
โ 2026-05-09 19:18:02
โA13.230.115.1612026-04-04 โ 2026-05-09 ยท 2 obs
โ 2026-05-09 19:18:02
๐ DNS Trace
๐ Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| info | a0.info.afilias-nst.info, a2.info.afilias-nst.info, c0.info.afilias-nst.info | - |
| mathnote.info | 04.dnsv.jp, 02.dnsv.jp, 01.dnsv.jp, 03.dnsv.jp | - |
โ Authoritative Response
Server:157.7.34.53
NS records: 04.dnsv.jp, 02.dnsv.jp, 01.dnsv.jp, 03.dnsv.jp
๐ DNSSEC Status
โ ๏ธ Insecure (no DNSSEC)
No DS record for mathnote.info (unsigned zone)
โฑ๏ธ Timing
Total: 1301ms | Queries: -
๐ Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 13.115.18.61, 13.230.115.161 |
| NS | 4 | 01.dnsv.jp, 02.dnsv.jp... |
| TXT | 1 | google-site-verification=r54zRDIcxKAgawh |
| SOA | 1 | 01.dnsv.jp hostmaster.dnsv.jp |
Analysis
IP Addresses
mathnote.info has two IP numbers: 13.115.18.61 and 13.230.115.161.
Other host names, for instance cmons.me, yukimimoza.com, reaitimenews.com, 1cheer.com and fujii-yuji.net share IP numbers with mathnote.info.
Name Servers
mathnote.info delegates to four name servers: 01.dnsv.jp, 02.dnsv.jp, 03.dnsv.jp and 04.dnsv.jp.
mathnote.info at least partially shares name servers with other domains, including yagan.co.jp, truedata.co.jp, denshobato.space, tectas.jp and owarai.me.
Host names with two IPs:
01.dnsv.jp points to 2400:8500:3300::53 and 157.7.32.53
03.dnsv.jp points to 2400:8500:3000::53 and 157.7.34.53
04.dnsv.jp points to 2400:8500:3fff::53 and 157.7.35.53
Host names with one IP:
02.dnsv.jp points to 157.7.33.53