upon.ac - robtex.com
upon.ac
ac
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a0.nic.ac ⭐ | ||||||
| NS | a2.nic.ac | ||||||
| NS | b0.nic.ac | ||||||
| NS | c0.nic.ac | ||||||
| SOA | a0.nic.achostmaster@donuts.email serial=1778334464 | ||||||
Same first word
Similar names
DNS History
12 records (5 active, 7 former)
●NS01.dnsv.jp2026-03-11 → 2026-05-09 · 3 obs
● 2026-03-11 09:53:28
● 2026-05-09 14:21:36
●NS02.dnsv.jp2026-03-11 → 2026-05-09 · 3 obs
● 2026-03-11 09:53:28
● 2026-05-09 14:21:36
●NS03.dnsv.jp2026-03-11 → 2026-05-09 · 3 obs
● 2026-03-11 09:53:28
● 2026-05-09 14:21:36
●NS04.dnsv.jp2026-03-11 → 2026-05-09 · 3 obs
● 2026-03-11 09:53:28
● 2026-05-09 14:21:36
○NSns1.zen-sv.com2015-07-26 → 2021-05-06 · 4 obs
● 2021-05-06 07:46:00
○ 2026-03-11 09:53:28
○ 2026-05-09 14:21:36
○NSns2.zen-sv.com2015-07-26 → 2021-05-06 · 4 obs
● 2021-05-06 07:46:00
○ 2026-03-11 09:53:28
○ 2026-05-09 14:21:36
○NSns3.zen-sv.com2015-07-26 → 2021-05-06 · 4 obs
● 2021-05-06 07:46:00
○ 2026-03-11 09:53:28
○ 2026-05-09 14:21:36
○MXmail.upon.ac2015-07-26 → 2021-05-06 · 4 obs
● 2021-05-06 07:46:00
○ 2026-03-11 09:53:28
○ 2026-05-09 14:21:36
●MXsmtp.google.com2026-03-11 → 2026-05-09 · 3 obs
● 2026-03-11 09:53:28
● 2026-05-09 14:21:36
○A103.24.195.572015-07-26 → 2016-04-17 · 4 obs
● 2016-04-17 22:54:06
○ 2016-08-23 00:35:04
○ 2026-05-09 14:21:36
○A103.55.12.272016-08-23 → 2017-01-26 · 5 obs
● 2016-08-23 00:35:04
● 2017-01-26 02:01:32
○ 2021-05-06 07:46:00
○ 2026-05-09 14:21:36
○A103.55.13.262021-05-06 → 2021-05-06 · 4 obs
● 2021-05-06 07:46:00
○ 2026-03-11 09:53:28
○ 2026-05-09 14:21:36
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| ac | a2.nic.ac, a0.nic.ac, c0.nic.ac, b0.nic.ac | - |
| upon.ac | 04.dnsv.jp, 03.dnsv.jp, 01.dnsv.jp, 02.dnsv.jp | - |
✅ Authoritative Response
Server:157.7.35.53
NS records: 04.dnsv.jp, 03.dnsv.jp, 01.dnsv.jp, 02.dnsv.jp
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for upon.ac (unsigned zone)
⏱️ Timing
Total: 1403ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 4 | 01.dnsv.jp, 02.dnsv.jp... |
| MX | 1 | smtp.google.com (pri: 1) |
| TXT | 1 | google-site-verification=eLc1WRwMZvSLh4i |
| SOA | 1 | 01.dnsv.jp hostmaster.dnsv.jp |
Analysis
Name Servers
upon.ac is delegated to four name servers: 01.dnsv.jp, 02.dnsv.jp, 03.dnsv.jp and 04.dnsv.jp.
upon.ac shares some name servers with other domains, for example budesonide.monster, doomgroup.jp, giftlink.jp, excel-sys.com and sorex.co.jp.
Host names with two IP numbers:
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 number:
02.dnsv.jp points to 157.7.33.53
Mail Servers
upon.ac is handled by a single mail server, smtp.google.com.
upon.ac shares the mail server setup with other domains, for example haciendanapoles.com, megaplot.com, aveyo.com, netenrich.com and cuisson.it.
upon.ac shares some mail servers with other domains, at least partially; for instance application-test.com, businessperformancedashboard.com, friendsofnancyking.com, globalgrowthnetworks.com and yourh.com.br.
these mail servers are often used with aspmx.l.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com, alt3.aspmx.l.google.com and alt4.aspmx.l.google.com.
smtp.google.com maps to nine IP numbers: 2607:f8b0:4004:c1d::1b, 2607:f8b0:4004:c1f::1a, 2607:f8b0:4004:c1f::1b, 2607:f8b0:4004:c21::1a, 64.233.180.26, 64.233.180.27, 142.251.167.27, 142.251.179.26 and 142.251.179.27.