sfchron.info - robtex.com
sfchron.info
| DNSSEC | ⚠️ Not signed | ||||||
| NS | pdns73.ultradns.com ⭐ | ||||||
| A | 2001:502:f3ff::6d🇺🇸 MAINT-ID-120082001:502:f3ff::/48 Neustar | ||||||
| PTR | pdns73.ultradns.com | ||||||
| A | 156.154.64.73🇺🇸 MAINT-ID-12008156.154.64.0/24 Neustar | ||||||
| PTR | pdns73.ultradns.com | ||||||
| NS | pdns73.ultradns.biz | ||||||
| A | 2610:a1:1015::6d🇺🇸 MAINT-ID-120082610:a1:1015::/48 Neustar | ||||||
| PTR | pdns73.ultradns.biz | ||||||
| A | 156.154.66.73🇺🇸 MAINT-ID-12008156.154.66.0/24 Neustar | ||||||
| PTR | pdns73.ultradns.biz | ||||||
| NS | pdns73.ultradns.net | ||||||
| A | 2610:a1:1014::6d🇺🇸 MAINT-ID-120082610:a1:1014::/48 Neustar | ||||||
| PTR | pdns73.ultradns.net | ||||||
| A | 156.154.65.73🇺🇸 MAINT-ID-12008156.154.65.0/24 Neustar | ||||||
| PTR | pdns73.ultradns.net | ||||||
| NS | pdns73.ultradns.org | ||||||
| A | 2001:502:4612::6d🇺🇸 MAINT-ID-120082001:502:4612::/48 Neustar | ||||||
| PTR | pdns73.ultradns.org | ||||||
| A | 156.154.67.73🇺🇸 MAINT-ID-12008156.154.67.0/24 Neustar | ||||||
| PTR | pdns73.ultradns.org | ||||||
| SOA | pdns73.ultradns.comhostmaster@hearst.com 2015-03-12 #2 | ||||||
info
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a0.info.afilias-nst.info ⭐ | ||||||
| NS | a2.info.afilias-nst.info | ||||||
| NS | b0.info.afilias-nst.org ⚠️ Not in parent delegation | ||||||
| NS | b2.info.afilias-nst.org ⚠️ Not in parent delegation | ||||||
| NS | c0.info.afilias-nst.info | ||||||
| NS | d0.info.afilias-nst.org ⚠️ Not in parent delegation | ||||||
| SOA | a0.info.afilias-nst.infohostmaster@donuts.email serial=1785773867 | ||||||
Same first word
Similar names
DNS History
4 records (4 active, 0 former)
●NSpdns73.ultradns.biz2015-08-22 → 2026-08-03 · 2 obs
● 2026-08-03 16:28:06
●NSpdns73.ultradns.com2015-08-22 → 2026-08-03 · 2 obs
● 2026-08-03 16:28:06
●NSpdns73.ultradns.net2015-08-22 → 2026-08-03 · 2 obs
● 2026-08-03 16:28:06
●NSpdns73.ultradns.org2015-08-22 → 2026-08-03 · 2 obs
● 2026-08-03 16:28:06
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| info | a0.info.afilias-nst.info, a2.info.afilias-nst.info, c0.info.afilias-nst.info | - |
| sfchron.info | pdns73.ultradns.com, pdns73.ultradns.biz, pdns73.ultradns.org, pdns73.ultradns.net | - |
✅ Authoritative Response
Server:156.154.64.73
NS records: pdns73.ultradns.com, pdns73.ultradns.biz, pdns73.ultradns.org, pdns73.ultradns.net
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for sfchron.info (unsigned zone)
⏱️ Timing
Total: 789ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 4 | pdns73.ultradns.biz, pdns73.ultradns.com... |
| SOA | 1 | pdns73.ultradns.com hostmaster.hearst.co |
Analysis
Name Servers
Four name servers handle the delegation for sfchron.info: pdns73.ultradns.biz, pdns73.ultradns.com, pdns73.ultradns.net and pdns73.ultradns.org.
sfchron.info shares at least some of its name servers with other domains, including jbo220.com, fun6698.com, light-breast.com and two others.
These name servers are frequently paired with the name servers pdns73.ultradns.info and pdns73.ultradns.co.uk.
The host names pdns73.ultradns.biz, pdns73.ultradns.com, pdns73.ultradns.net and pdns73.ultradns.org each resolve to two IP addresses: pdns73.ultradns.biz resolves to 156.154.66.73 and 2610:a1:1015::6d; pdns73.ultradns.com resolves to 156.154.64.73 and 2001:502:f3ff::6d; pdns73.ultradns.net resolves to 156.154.65.73 and 2610:a1:1014::6d; pdns73.ultradns.org resolves to 156.154.67.73 and 2001:502:4612::6d.