mx.yfb.us - robtex.com
mx.yfb.us
| 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 | ns1.afternic.com ⭐ ⚠️ Not in parent delegation | ||||||
| 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 | ||||||
| NS | ns2.afternic.com ⚠️ Not in parent delegation | ||||||
| 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 | ||||||
| TXT | v=spf1 -all | ||||||
| SOA | ns1.afternic.comdns@jomax.net serial=1 | ||||||
yfb.us
| DNSSEC | ⚠️ Not signed | ||||||
| A | 13.248.169.48🇺🇸 Amazon13.248.160.0/20 | ||||||
| A | 76.223.54.146🇺🇸 Amazon76.223.48.0/20 | ||||||
| NS | ns1.afternic.com ⭐ | ||||||
| NS | ns2.afternic.com | ||||||
| TXT | v=spf1 -all | ||||||
| SOA | ns1.afternic.comdns@jomax.net serial=1 | ||||||
Previously MX for
Same first word
Similar names
DNS History
8 records (4 active, 4 former)
●NSns1.afternic.com2026-07-15 → 2026-07-15 · 2 obs
● 2026-07-15 23:34:52
○NSns1.undeveloped.com2018-08-30 → 2018-08-30 · 2 obs
○ 2026-07-15 23:34:52
●NSns2.afternic.com2026-07-15 → 2026-07-15 · 2 obs
● 2026-07-15 23:34:52
○NSns2.undeveloped.com2018-08-30 → 2018-08-30 · 2 obs
○ 2026-07-15 23:34:52
○MXmx.mx.yfb.us2018-08-30 → 2018-08-30 · 2 obs
○ 2026-07-15 23:34:52
●A13.248.169.482026-07-15 → 2026-07-15 · 2 obs
● 2026-07-15 23:34:52
○A52.58.78.162018-08-30 → 2018-08-30 · 2 obs
○ 2026-07-15 23:34:52
●A76.223.54.1462026-07-15 → 2026-07-15 · 2 obs
● 2026-07-15 23:34:52
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| us | b.cctld.us, f.cctld.us, k.cctld.us, m.cctld.us... | - |
| yfb.us | ns2.afternic.com, ns1.afternic.com | - |
✅ Authoritative Response
Server:97.74.98.69
NS records: ns2.afternic.com, ns1.afternic.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for yfb.us (unsigned zone)
⏱️ Timing
Total: 1562ms | 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
mx.yfb.us resolves to the IP addresses 13.248.169.48 and 76.223.54.146
Among the host names that share IP numbers with mx.yfb.us are cemflex.com, coldcoffee.xyz, geneticdisorders.org and two others.
Name Servers
mx.yfb.us is served by two delegated name servers, ns1.afternic.com and ns2.afternic.com.
mx.yfb.us has the same name server delegation as a number of other domains, such as andenes.com, dc01.qa.covata.com, savedthe.biz and two more.
mx.yfb.us has at least partial name server overlap with other domains, such as hostans.com, itineris.us, a1interior.com and two others.
These name servers tend to appear together with the name servers verification-m3erh32ujyoastvophjvuz.ns101.verify.hn, verification-d3jclucsp89ganyqbydeny.ns101.verify.hn and verification-frsgyqgb387khmr9jzuunx.ns101.verify.hn.
Each of the two host names carries two IP addresses: ns1.afternic.com points to 97.74.98.69 and 2603:5:2126::45, and ns2.afternic.com points to 173.201.66.69 and 2603:5:2226::45.