sema.tech - robtex.com
sema.tech
| DNSSEC | ⚠️ Not signed | ||||||
| A | 13.248.169.48🇺🇸 Amazon13.248.160.0/20 | ||||||
| PTR | a904c694c05102f30.awsglobalaccelerator.com | ||||||
| A | 76.223.54.146🇺🇸 Amazon76.223.48.0/20 | ||||||
| NS | ns2.afternic.com ⭐ | ||||||
| A | 2603:5:2226::45🇺🇸 GODADDY-DNS2603:5:2220::/44 | ||||||
| PTR | ns2.afternic.com | ||||||
| A | 173.201.66.69🇺🇸 GODADDY-DNS173.201.66.0/23 | ||||||
| PTR | ns2.afternic.com | ||||||
| NS | ns1.afternic.com | ||||||
| A | 2603:5:2126::45🇺🇸 GODADDY-DNS2603:5:2120::/44 | ||||||
| PTR | ns1.afternic.com | ||||||
| A | 97.74.98.69🇺🇸 GODADDY-DNS97.74.98.0/23 | ||||||
| PTR | ns1.afternic.com | ||||||
| TXT | v=spf1 -all | ||||||
| SOA | ns2.afternic.comdns@jomax.net serial=1 | ||||||
tech
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | ns01.trs-dns.com ⭐ | ||||||
| NS | ns.trs-dns.com | ||||||
| NS | ns01.trs-dns.net | ||||||
| NS | ns10.trs-dns.info | ||||||
| NS | ns10.trs-dns.org | ||||||
| SOA | ns.trs-dns.comtrs-ops@tucows.com serial=1783771436 | ||||||
Same first word
Similar names
DNS History
8 records (4 active, 4 former)
○NSns.netafraz.com2019-12-19 → 2019-12-19 · 3 obs
○ 2026-05-27 18:55:26
○ 2026-07-11 12:28:28
●NSns1.afternic.com2026-05-27 → 2026-07-11 · 3 obs
● 2026-05-27 18:55:26
● 2026-07-11 12:28:28
●NSns2.afternic.com2026-05-27 → 2026-07-11 · 3 obs
● 2026-05-27 18:55:26
● 2026-07-11 12:28:28
○NSns2.netafraz.com2019-12-19 → 2019-12-19 · 3 obs
○ 2026-05-27 18:55:26
○ 2026-07-11 12:28:28
○MXmail.sema.tech2019-12-19 → 2019-12-19 · 3 obs
○ 2026-05-27 18:55:26
○ 2026-07-11 12:28:28
●A13.248.169.482026-05-27 → 2026-07-11 · 3 obs
● 2026-05-27 18:55:26
● 2026-07-11 12:28:28
○A149.202.102.1802019-12-19 → 2019-12-19 · 3 obs
○ 2026-05-27 18:55:26
○ 2026-07-11 12:28:28
●A76.223.54.1462026-05-27 → 2026-07-11 · 3 obs
● 2026-05-27 18:55:26
● 2026-07-11 12:28:28
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| tech | ns01.trs-dns.com, ns01.trs-dns.net, ns10.trs-dns.org, ns10.trs-dns.info | - |
| sema.tech | ns1.afternic.com, ns2.afternic.com | - |
✅ Authoritative Response
Server:97.74.98.69
NS records: ns1.afternic.com, ns2.afternic.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for sema.tech (unsigned zone)
⏱️ Timing
Total: 113ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 76.223.54.146, 13.248.169.48 |
| NS | 2 | ns1.afternic.com, ns2.afternic.com |
| MX | 1 | . (pri: 0) |
| TXT | 1 | v=spf1 -all |
| SOA | 1 | ns1.afternic.com dns.jomax.net |
Analysis
IP Addresses
sema.tech has two IP addresses: 13.248.169.48 and 76.223.54.146
Additional host names — tour-360.com, dentistdrills.com, xn--1rwx63ckxo.com and two others — share IP numbers with sema.tech.
Name Servers
sema.tech uses two name servers for its delegation: ns1.afternic.com and ns2.afternic.com.
sema.tech shares its name server setup with other domains, including mail.miccom.com, hemroidsymptoms.publicsets.com, apycheck.com and two others.
There is at least partial name server overlap between sema.tech and other domains — smartlaw.pro, 72115.com, evry.co and two more among them.
These name servers tend to appear in combination with the name servers verification-f6mwz3yrfbsrgianrkzsq6.ns101.verify.hn, verification-m3erh32ujyoastvophjvuz.ns101.verify.hn, verification-d3jclucsp89ganyqbydeny.ns101.verify.hn and verification-b2xhbafl2wwjvijqdzzuyn.ns101.verify.hn.
The two host names ns1.afternic.com and ns2.afternic.com each have a pair of IP addresses: ns1.afternic.com has 97.74.98.69 and 2603:5:2126::45, and ns2.afternic.com has 173.201.66.69 and 2603:5:2226::45.