postit.cz - robtex.com
postit.cz
| DNSSEC | ⚠️ Not signed | ||||||
| A | 3.138.64.46🇺🇸 Amazon3.136.0.0/13 EC2 CMH prefix | ||||||
| PTR | ec2-3-138-64-46.us-east-2.compute.amazonaws.com | ||||||
| A | 18.220.191.236🇺🇸 Amazon18.220.0.0/14 EC2 CMH prefix | ||||||
| NS | a.ns.3m.com ⭐ | ||||||
| A | 2400:cb00:2049:1::a29f:8ae🇺🇸 Cloudflare2400:cb00:2049::/48 , Inc. 101 Townsend Street | ||||||
| A | 162.159.8.174Cloudflare162.159.8.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| NS | b.ns.3m.com | ||||||
| A | 2400:cb00:2049:1::adf5:3a13🇺🇸 Cloudflare2400:cb00:2049::/48 , Inc. 101 Townsend Street | ||||||
| A | 173.245.58.19🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| TXT | v=spf1 -all | ||||||
| SOA | a.ns.3m.comdns@cloudflare.com serial=2397315247 | ||||||
cz
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.ns.nic.cz ⭐ 🔒 | ||||||
| NS | b.ns.nic.cz 🔒 | ||||||
| NS | c.ns.nic.cz 🔒 | ||||||
| NS | d.ns.nic.cz 🔒 | ||||||
| SOA | a.ns.nic.czhostmaster@nic.cz serial=1771291036 | ||||||
Same first word
Similar names
DNS History
12 records (4 active, 8 former)
●NSa.ns.3m.com2026-02-26 → 2026-02-28 · 3 obs
● 2026-02-26 04:03:22
● 2026-02-28 13:08:18
●NSb.ns.3m.com2026-02-26 → 2026-02-28 · 3 obs
● 2026-02-26 04:03:22
● 2026-02-28 13:08:18
○NSns.3m.com2015-07-05 → 2020-03-16 · 4 obs
● 2020-03-16 22:16:38
○ 2026-02-26 04:03:22
○ 2026-02-28 13:08:18
○NSpigseye.mmm.com2015-07-05 → 2020-03-16 · 4 obs
● 2020-03-16 22:16:38
○ 2026-02-26 04:03:22
○ 2026-02-28 13:08:18
○MXleslie.postit.cz2015-07-05 → 2017-02-13 · 4 obs
● 2017-02-13 22:37:18
○ 2020-03-16 22:16:38
○ 2026-02-28 13:08:18
○MXmx1.hc3069-42.iphmx.com2020-03-16 → 2020-03-16 · 4 obs
● 2020-03-16 22:16:38
○ 2026-02-26 04:03:22
○ 2026-02-28 13:08:18
○MXmx2.hc3069-42.iphmx.com2020-03-16 → 2020-03-16 · 4 obs
● 2020-03-16 22:16:38
○ 2026-02-26 04:03:22
○ 2026-02-28 13:08:18
●A18.220.191.2362026-02-26 → 2026-02-28 · 3 obs
● 2026-02-26 04:03:22
● 2026-02-28 13:08:18
○A192.28.34.172015-07-05 → 2020-03-16 · 4 obs
● 2020-03-16 22:16:38
○ 2026-02-26 04:03:22
○ 2026-02-28 13:08:18
●A3.138.64.462026-02-26 → 2026-02-28 · 3 obs
● 2026-02-26 04:03:22
● 2026-02-28 13:08:18
○A3.151.167.932026-02-26 → 2026-02-28 · 2 obs
○ 2026-02-28 13:08:18
○A3.151.225.2022026-02-26 → 2026-02-28 · 2 obs
○ 2026-02-28 13:08:18
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cz | a.ns.nic.cz, b.ns.nic.cz, c.ns.nic.cz, d.ns.nic.cz | - |
| postit.cz | a.ns.3m.com, b.ns.3m.com | - |
✅ Authoritative Response
Server: 173.245.58.19
NS records: a.ns.3m.com, b.ns.3m.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for postit.cz (unsigned zone)
⏱️ Timing
Total: 815ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 18.220.191.236, 3.138.64.46 |
| NS | 2 | a.ns.3m.com, b.ns.3m.com |
| TXT | 1 | v=spf1 -all |
| SOA | 1 | a.ns.3m.com dns.cloudflare.com |
Analysis
IP Addresses
postit.cz resolves to two IP numbers: 3.138.64.46 and 18.220.191.236.
Other host names, for instance command.pe, mmm.com, scotch-brite.de, futuro.com.hk and kci-medical.co.za share IP numbers with postit.cz.
Name Servers
postit.cz has two name servers: a.ns.3m.com and b.ns.3m.com.
postit.cz shares the same name server setup as other domains, for example nexcarebandages.com, 3mvp.com, 3m.net.pk, 3mexofit-nex.org and 3mcovidn95respirator.com.
Host names with two IP numbers:
a.ns.3m.com points to: 2400:cb00:2049:1::a29f:8ae and 162.159.8.174; b.ns.3m.com points to: 2400:cb00:2049:1::adf5:3a13 and 173.245.58.19.