fdcutil.com - robtex.com
fdcutil.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 18.221.254.145🇺🇸 Amazon18.220.0.0/14 EC2 CMH prefix | ||||||
| PTR | ec2-18-221-254-145.us-east-2.compute.amazonaws.com | ||||||
| NS | ns51.worldnic.com ⭐ | ||||||
| A | 162.159.26.165Cloudflare162.159.26.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| NS | ns52.worldnic.com | ||||||
| A | 162.159.27.8Cloudflare162.159.27.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| MX | mail.fdcutil.com ⭐ | ||||||
| A | 18.221.254.145🇺🇸 Amazon18.220.0.0/14 EC2 CMH prefix | ||||||
| PTR | ec2-18-221-254-145.us-east-2.compute.amazonaws.com | ||||||
| MX | mail.finnandconway.com(10) | ||||||
| A | 103.15.50.77🇻🇳 ODS-AS-VN103.15.50.0/24 Vietnam Internet Network Information Center (VNNIC) 18 Nguyen Du Str, Hai Ba Trung District, Hanoi City, Vietnam 24th floor, VNTA Tower, Duong Dinh Nghe, Cau Giay, Hanoi | ||||||
| MX | stmp.finnandconway.com(20) | ||||||
| A | 103.15.50.77🇻🇳 ODS-AS-VN103.15.50.0/24 Vietnam Internet Network Information Center (VNNIC) 18 Nguyen Du Str, Hai Ba Trung District, Hanoi City, Vietnam 24th floor, VNTA Tower, Duong Dinh Nghe, Cau Giay, Hanoi | ||||||
| SOA | NS51.WORLDNIC.comnamehost@WORLDNIC.com serial=119071221 | ||||||
com
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.gtld-servers.net ⭐ | ||||||
| NS | b.gtld-servers.net | ||||||
| NS | c.gtld-servers.net | ||||||
| NS | d.gtld-servers.net | ||||||
| NS | e.gtld-servers.net | ||||||
| NS | f.gtld-servers.net | ||||||
| NS | g.gtld-servers.net | ||||||
| NS | h.gtld-servers.net | ||||||
| NS | i.gtld-servers.net | ||||||
| NS | j.gtld-servers.net | ||||||
| NS | k.gtld-servers.net | ||||||
| NS | l.gtld-servers.net | ||||||
| NS | m.gtld-servers.net | ||||||
| SOA | a.gtld-servers.netnstld@verisign-grs.com serial=1774469607 | ||||||
Subdomains
Same first word
fdcutil.com |
DNS History
10 records (6 active, 4 former)
○NSns1.dnsbycomodo.net2016-12-19 → 2017-11-08 · 4 obs
● 2017-11-08 07:46:36
○ 2026-02-16 08:15:58
○ 2026-03-25 20:24:58
○NSns2.dnsbycomodo.net2016-12-19 → 2017-11-08 · 4 obs
● 2017-11-08 07:46:36
○ 2026-02-16 08:15:58
○ 2026-03-25 20:24:58
●NSns51.worldnic.com2026-02-16 → 2026-03-25 · 3 obs
● 2026-02-16 08:15:58
● 2026-03-25 20:24:58
●NSns52.worldnic.com2026-02-16 → 2026-03-25 · 3 obs
● 2026-02-16 08:15:58
● 2026-03-25 20:24:58
●MXmail.fdcutil.com2016-12-19 → 2026-03-25 · 2 obs
● 2026-03-25 20:24:58
●MXmail.finnandconway.com2026-02-16 → 2026-03-25 · 3 obs
● 2026-02-16 08:15:58
● 2026-03-25 20:24:58
○MXsmtp.fdcutil.com2016-12-19 → 2017-11-08 · 4 obs
● 2017-11-08 07:46:36
○ 2026-02-16 08:15:58
○ 2026-03-25 20:24:58
●MXstmp.finnandconway.com2026-02-16 → 2026-03-25 · 3 obs
● 2026-02-16 08:15:58
● 2026-03-25 20:24:58
●A18.221.254.1452026-02-16 → 2026-03-25 · 3 obs
● 2026-02-16 08:15:58
● 2026-03-25 20:24:58
○A208.113.95.752016-12-19 → 2017-11-08 · 4 obs
● 2017-11-08 07:46:36
○ 2026-02-16 08:15:58
○ 2026-03-25 20:24:58
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| fdcutil.com | ns51.worldnic.com, ns52.worldnic.com | 2 records |
✅ Authoritative Response
Server:162.159.26.165
NS records: ns51.worldnic.com, ns52.worldnic.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for fdcutil.com (unsigned zone)
⏱️ Timing
Total: 245ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 18.221.254.145 |
| NS | 2 | ns51.worldnic.com, ns52.worldnic.com |
| MX | 3 | mail.fdcutil.com (pri: 5), mail.finnandconway.com (pri: 10)... |
| SOA | 1 | NS51.WORLDNIC.com namehost.WORLDNIC.com |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (ns51.worldnic.com, ns52.worldnic.com)
Analysis
Hierarchy
fdcutil.com is a parent of smtp.fdcutil.com and mail.fdcutil.com.
IP Addresses
fdcutil.com resolves to one IP number: 18.221.254.145.
Other host names, for instance ec2-18-221-254-145.us-east-2.compute.amazonaws.com, smtp.fdcutil.com and mail.fdcutil.com share IP numbers with fdcutil.com.
Name Servers
fdcutil.com is delegated to two name servers ns51.worldnic.com and ns52.worldnic.com.
fdcutil.com shares the same name server setup as other domains, for instance linxgm.com, pulsonix.co, mlbdigs.com, transcend-group.com and windsorplywood.co.
Host names with one IP number:
ns51.worldnic.com points to 162.159.26.165
ns52.worldnic.com points to 162.159.27.8
Mail Servers
fdcutil.com is handled by three mail servers: mail.fdcutil.com, mail.finnandconway.com and stmp.finnandconway.com.
Host names with a single IP number:
The host name mail.fdcutil.com points to 18.221.254.145.
The host name mail.finnandconway.com points to 103.15.50.77.
The host name stmp.finnandconway.com points to 103.15.50.77.
Host names that point to 103.15.50.77: mail.finnandconway.com and stmp.finnandconway.com.