firstclass.com - robtex.com
firstclass.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 205.211.178.221🇨🇦 AS16751205.211.178.0/24 Added on behalf of the customer | ||||||
| PTR | mail.firstclass.com | ||||||
| NS | ns.softarc.com ⭐ ⚠️ Not in parent delegation | ||||||
| A | 205.211.178.224🇨🇦 AS16751205.211.178.0/24 Added on behalf of the customer | ||||||
| NS | ns.firstclass.com ⚠️ Not in zone NS records | ||||||
| A | 205.211.178.224🇨🇦 AS16751205.211.178.0/24 Added on behalf of the customer | ||||||
| NS | proxy.firstclass.com | ||||||
| A | 205.211.178.223🇨🇦 AS16751205.211.178.0/24 Added on behalf of the customer | ||||||
| MX | mxa-00102601.gslb.pphosted.com ⭐ | ||||||
| A | 67.231.152.222🇺🇸 Proofpoint67.231.152.0/24 Inc. | ||||||
| PTR | mx0b-00102601.pphosted.com | ||||||
| MX | mxb-00102601.gslb.pphosted.com ⭐ | ||||||
| A | 67.231.144.228🇺🇸 Proofpoint67.231.144.0/24 Inc. | ||||||
| PTR | mx0a-00102601.pphosted.com | ||||||
| TXT | MS=ms72633469 | ||||||
| TXT | v=spf1 ip4:205.211.178.221 ~all | ||||||
| SOA | ns.softarc.compostmaster@softarc.com serial=515 | ||||||
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=1771291435 | ||||||
rank #329106 in the tld
WOT: SAFE (88/100)
Subdomains
updates.firstclass.com |
proxy.firstclass.com |
mail.firstclass.com |
intl.firstclass.com |
www.firstclass.com |
coolstuff.firstclass.com |
www3.firstclass.com |
fcws.firstclass.com |
ns.firstclass.com |
fcol.firstclass.com |
user.firstclass.com |
Same first word
Similar names
DNS History
12 records (6 active, 6 former)
●NSns.firstclass.com2026-02-14 → 2026-03-11 · 3 obs
● 2026-02-14 20:31:44
● 2026-03-11 06:38:12
●NSns.softarc.com2015-08-31 → 2026-03-11 · 2 obs
● 2026-03-11 06:38:12
○NSns.uunet.ca2015-08-31 → 2019-01-29 · 4 obs
● 2019-01-29 22:13:16
○ 2026-02-14 20:31:44
○ 2026-03-11 06:38:12
●NSproxy.firstclass.com2018-08-30 → 2026-03-11 · 7 obs
● 2018-08-30 05:16:56
● 2018-10-17 08:35:54
○ 2018-12-08 23:34:50
○ 2019-01-29 22:13:16
● 2026-02-14 20:31:44
● 2026-03-11 06:38:12
○MXes01.firstclass.com2017-07-23 → 2019-01-29 · 5 obs
● 2017-07-23 16:27:28
● 2019-01-29 22:13:16
○ 2026-02-14 20:31:44
○ 2026-03-11 06:38:12
○MXes02.firstclass.com2017-07-23 → 2019-01-29 · 5 obs
● 2017-07-23 16:27:28
● 2019-01-29 22:13:16
○ 2026-02-14 20:31:44
○ 2026-03-11 06:38:12
○MXmail.firstclass.com2015-08-31 → 2017-07-17 · 4 obs
● 2017-07-17 03:38:06
○ 2017-07-23 16:27:28
○ 2026-03-11 06:38:12
●MXmxa-00102601.gslb.pphosted.com2026-02-14 → 2026-03-11 · 3 obs
● 2026-02-14 20:31:44
● 2026-03-11 06:38:12
●MXmxb-00102601.gslb.pphosted.com2026-02-14 → 2026-03-11 · 3 obs
● 2026-02-14 20:31:44
● 2026-03-11 06:38:12
○A142.75.67.2122017-07-17 → 2019-01-29 · 5 obs
● 2017-07-17 03:28:14
● 2019-01-29 22:13:16
○ 2026-02-14 20:31:44
○ 2026-03-11 06:38:12
○A192.168.137.122015-08-31 → 2017-07-11 · 4 obs
● 2017-07-11 09:57:18
○ 2017-07-17 03:28:14
○ 2026-03-11 06:38:12
●A205.211.178.2212026-02-14 → 2026-03-11 · 3 obs
● 2026-02-14 20:31:44
● 2026-03-11 06:38:12
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| firstclass.com | ns.firstclass.com, proxy.firstclass.com | 2 records |
✅ Authoritative Response
Server: 205.211.178.223
NS records: ns.firstclass.com, proxy.firstclass.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for firstclass.com (unsigned zone)
⏱️ Timing
Total: 216ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 205.211.178.221 |
| NS | 2 | proxy.firstclass.com, ns.softarc.com |
| MX | 2 | mxb-00102601.gslb.pphosted.com (pri: 10), mxa-00102601.gslb.pphosted.com (pri: 10) |
| TXT | 2 | v=spf1 ip4:205.211.178.221 ~all, MS=ms72633469 |
| SOA | 1 | ns.softarc.com postmaster.softarc.com |
📌 Glue Records Collected
Total: 2
In-bailiwick: 2 (ns.firstclass.com, proxy.firstclass.com)
Analysis
Hierarchy
firstclass.com is a parent of updates.firstclass.com, proxy.firstclass.com, mail.firstclass.com, intl.firstclass.com, www.firstclass.com and a few other host names.
IP Addresses
firstclass.com points to a single IP: 205.211.178.221.
Other host names, for instance mail.firstclass.com, mail.softarc.com and www.firstclass.com share IP numbers with firstclass.com.
Name Servers
firstclass.com is delegated to three name servers: ns.firstclass.com, proxy.firstclass.com and ns.softarc.com.
firstclass.com partially shares name servers with other domains, such as intl.firstclass.com and softarc.com.
these name servers are commonly used with the name servers proxy.softarc.com.
Host names with a single IP number
Host ns.firstclass.com points to 205.211.178.224
Host proxy.firstclass.com points to 205.211.178.223
Host ns.softarc.com points to 205.211.178.224
Host names pointing to 205.211.178.224: ns.firstclass.com and ns.softarc.com
Mail Servers
firstclass.com is handled by two mail servers: mxa-00102601.gslb.pphosted.com and mxb-00102601.gslb.pphosted.com.
firstclass.com has the same mail server setup as other domains, including erado.com, interchange.com.br, thefaxguys.com, infograph.com and softarc.com.
firstclass.com shares some mail servers with other domains, at least partially, such as wwteam.com, b2bscene.com, b2bscene.net, wwteam.net and wwextranet.com.
These mail servers are often used with the mail servers smtp.b2bscene.com.
Host names with one IP number: The host name mxa-00102601.gslb.pphosted.com points to 67.231.152.222 and the host name mxb-00102601.gslb.pphosted.com points to 67.231.144.228.