NSLIST.NET - 21st.com
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21st.com checked at 2025-10-16T13:05:23.943Z 196ms 95/95/95 100% R:1321st.com
| MX | mxa-0028ab01.gslb.pphosted.com | ||||||
| A | 148.163.154.55🇺🇸 Proofpoint | ||||||
| PTR | mx0b-0028ab01.pphosted.com | ||||||
| MX | mxb-0028ab01.gslb.pphosted.com | ||||||
| A | 148.163.150.117🇺🇸 Proofpoint | ||||||
| PTR | mx0a-0028ab01.pphosted.com | ||||||
| NS | ns1.a0.impervasecuredns.net | ||||||
| A | 2a02:e980:4::1 🇺🇸 Thales/Imperva | ||||||
| A | 192.230.121.1🇺🇸 Thales/Imperva | ||||||
| PTR | 192.230.121.1.ip.incapdns.net | ||||||
| NS | ns1.a1.impervasecuredns.net | ||||||
| A | 2a02:e980:5::1 🇺🇸 Thales/Imperva | ||||||
| A | 192.230.122.1🇺🇸 Thales/Imperva | ||||||
| PTR | 192.230.122.1.ip.incapdns.net | ||||||
| NS | ns1.a2.impervasecuredns.net | ||||||
| A | 2a02:e980:6::1 🇺🇸 Thales/Imperva | ||||||
| A | 192.230.123.1🇺🇸 Thales/Imperva | ||||||
| PTR | 192.230.123.1.ip.incapdns.net | ||||||
| A | 45.60.122.143🇺🇸 Thales/Imperva | ||||||
| A | 45.60.132.143🇺🇸 Thales/Imperva | ||||||
com
rank #110052 in the tld
Up
ftp3.21st.com |
autowebservice.21st.com |
policy.21st.com |
m.21st.com |
sfprxy.21st.com |
ns1.21st.com |
www.21st.com |
ns2.21st.com |
origin-auto.21st.com |
ww2.21st.com |
e.21st.com |
Starts with same word
Starts similarily
AI analysis
21st.com is the parent of ftp3.21st.com, autowebservice.21st.com, policy.21st.com, m.21st.com, sfprxy.21st.com and a few other host names.
21st.com resolves to two IP numbers: 45.60.122.143 and 45.60.132.143.
other host names including nssystems.net, sosi.com, ucjourney.com, ns-systems.dk and sosi.jobs share IP numbers with 21st.com.
21st.com is delegated to three name servers ns1.a0.impervasecuredns.net, ns1.a1.impervasecuredns.net and ns1.a2.impervasecuredns.net.
21st.com at least partially shares name servers with other domains, for instance aeroportsdeparis.fr, octoclicks.co.id, farmersclaimscareers.com, farmersbillings.com and bahco.com.
Host names with two IP numbers:
ns1.a0.impervasecuredns.net points to: 2a02:e980:4::1 and 192.230.121.1.
ns1.a1.impervasecuredns.net points to: 2a02:e980:5::1 and 192.230.122.1.
ns1.a2.impervasecuredns.net points to: 2a02:e980:6::1 and 192.230.123.1.
Two mail servers handle 21st.com: mxa-0028ab01.gslb.pphosted.com and mxb-0028ab01.gslb.pphosted.com.
21st.com shares the same mail server setup as other domains, for instance bristolwest.com, foremost.com, hpcs.com, toggle.com and farmershawaii.com.
21st.com shares mail servers with other domains to some extent, for instance hiinsconsultants.com.
Host names with one IP number:
mxa-0028ab01.gslb.pphosted.com points to 148.163.154.55