smartbluefilter.us - robtex.com
smartbluefilter.us
| DNSSEC | ⚠️ Not signed | ||||||
| NS | frexi901.essilor.com ⭐ | ||||||
| A | 193.242.5.220🇫🇷 ESSILOR193.242.5.0/24 Essilor International Creteil-Echat France | ||||||
| NS | frexi902.essilor.com | ||||||
| A | 20.85.152.28🇺🇸 Microsoft20.64.0.0/10 | ||||||
| TXT | v=spf1 include:spf.messagelabs.com include:spf.protection.outlook.com -all | ||||||
| SOA | frexi901.essilor.commisnetsupport@essilor.fr serial=9 | ||||||
us
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.cctld.us ⭐ | ||||||
| NS | b.cctld.us | ||||||
| NS | f.cctld.us | ||||||
| NS | k.cctld.us | ||||||
| NS | m.cctld.us | ||||||
| NS | n.cctld.us | ||||||
| NS | w.cctld.us | ||||||
| NS | x.cctld.us | ||||||
| NS | y.cctld.us | ||||||
| SOA | a.cctld.usadmin@tldns.godaddy serial=1774594432 | ||||||
Same first word
DNS History
2 records (2 active, 0 former)
●NSfrexi901.essilor.com2026-03-15 → 2026-03-27 · 2 obs
● 2026-03-27 07:27:38
●NSfrexi902.essilor.com2026-03-15 → 2026-03-27 · 2 obs
● 2026-03-27 07:27:38
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| us | b.cctld.us, f.cctld.us, k.cctld.us, m.cctld.us... | - |
| smartbluefilter.us | frexi901.essilor.com, frexi902.essilor.com | - |
✅ Authoritative Response
Server:20.85.152.28
NS records: frexi901.essilor.com, frexi902.essilor.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for smartbluefilter.us (unsigned zone)
⏱️ Timing
Total: 318ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 2 | frexi901.essilor.com, frexi902.essilor.com |
| TXT | 1 | v=spf1 include:spf.messagelabs.com inclu |
| SOA | 1 | frexi901.essilor.com misnetsupport.essil |
Analysis
Name Servers
smartbluefilter.us's delegation uses two name servers, frexi901.essilor.com and frexi902.essilor.com.
smartbluefilter.us shares the same name server setup as other domains, for example e-spf.com.cn, eyesunprotectionfactor.org, smart-blue-filter.fr, essilux.it and bbgr-services.fr.
smartbluefilter.us at least partially shares name servers with other domains, including 5.242.193.in-addr.arpa, societedeslunetiers.eu, physiologievisuelle.fr, meye-e-store.it and ageisjustanumber.it.
Host names with a single IP:
frexi901.essilor.com points to 193.242.5.220.
frexi902.essilor.com points to 20.85.152.28.