sysadmin.host - robtex.com
sysadmin.host
| DNSSEC | π Signed (DS record present) | ||||||
| A | 2606:4700:3032::6815:5cf8πΊπΈ Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US β In HTTPS hints | ||||||
| A | 2606:4700:3036::ac43:c901πΊπΈ Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US β In HTTPS hints | ||||||
| A | 104.21.92.248Cloudflare104.21.80.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US β In HTTPS hints | ||||||
| A | 172.67.201.1πΊπΈ Cloudflare172.67.192.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US β In HTTPS hints | ||||||
| NS | dora.ns.cloudflare.com β | ||||||
| A | 2606:4700:50::adf5:3a6cπΊπΈ Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | dora.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c06cπ¨π· Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | dora.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:206cπΊπΈ Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | dora.ns.cloudflare.com | ||||||
| A | 108.162.192.108πΊπΈ Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | dora.ns.cloudflare.com | ||||||
| A | 172.64.32.108πΊπΈ Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | dora.ns.cloudflare.com | ||||||
| A | 173.245.58.108πΊπΈ Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | dora.ns.cloudflare.com | ||||||
| NS | jay.ns.cloudflare.com | ||||||
| A | 2606:4700:58::adf5:3b7bπΊπΈ Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | jay.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c17bπ¨π· Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | jay.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:217bπΊπΈ Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | jay.ns.cloudflare.com | ||||||
| A | 108.162.193.123πΊπΈ Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | jay.ns.cloudflare.com | ||||||
| A | 172.64.33.123πΊπΈ Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | jay.ns.cloudflare.com | ||||||
| A | 173.245.59.123πΊπΈ Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | jay.ns.cloudflare.com | ||||||
| MX | mx1.sysadmin.host β | ||||||
| A | 100.42.188.231πΊπΈ CONTABO100.42.184.0/21 | ||||||
| PTR | mx1.sysadmin.host | ||||||
| MX | mail.protonmail.ch(11) | ||||||
| A | 176.119.200.128π¨π Proton176.119.200.0/24 | ||||||
| PTR | mail.protonmail.ch | ||||||
| A | 185.70.42.128π¨π Proton185.70.42.0/24 | ||||||
| PTR | mail.protonmail.ch | ||||||
| A | 185.205.70.128π«π· Proton185.205.70.0/24 | ||||||
| PTR | mail.protonmail.ch | ||||||
| MX | mailsec.protonmail.ch(20) | ||||||
| A | 176.119.200.129π¨π Proton176.119.200.0/24 | ||||||
| PTR | mailsec.protonmail.ch | ||||||
| A | 185.70.42.129π¨π Proton185.70.42.0/24 | ||||||
| PTR | mailsec.protonmail.ch | ||||||
| A | 185.205.70.129π«π· Proton185.205.70.0/24 | ||||||
| PTR | mailsec.protonmail.ch | ||||||
| MX | alt1.aspmx.l.google.com(40) | ||||||
| A | 2800:3f0:4003:c14::1bπ¨π± Google2800:3f0:4003::/48 | ||||||
| A | 192.178.234.27πΊπΈ Google192.178.0.0/15 | ||||||
| PTR | ncsclj-in-f27.1e100.net | ||||||
| MX | aspmx.l.google.com(50) | ||||||
| A | 2607:f8b0:4004:c1b::1aπΊπΈ Google2607:f8b0:4004::/48 | ||||||
| PTR | wv-in-f26.1e100.net | ||||||
| A | 192.178.155.27πΊπΈ Google192.178.155.0/24 | ||||||
| PTR | yuiadrs-in-f27.1e100.net | ||||||
| TXT | google-site-verification=48EcIOpJWiONUM80LLW3gsSToLSvDwF0J2n87CK57nk | ||||||
| TXT | mailyard-verification=895f932d2f3f53da2297b288c64c4afd | ||||||
| TXT | protonmail-verification=b03baeed7ff2966cde07e4bfebe30713f31b3311 | ||||||
| TXT | v=spf1 include:_spf.protonmail.ch include:_spf.google.com include:spf.mailjet... | ||||||
| HTTPS | HTTP/3, HTTP/2 β hints match | ||||||
| IPv4 hints | 104.21.92.248, 172.67.201.1 | ||||||
| IPv6 hints | 2606:4700:3032::6815:5cf8, 2606:4700:3036::ac43:c901 | ||||||
| ECH | X25519, HKDF-SHA256 + AES-128-GCM draft, id=97, name=cloudflare-ech.com | ||||||
| SOA | dora.ns.cloudflare.comdns@cloudflare.com serial=2413799014 | ||||||
host
| DNSSEC | π Signed (DS record present) | ||||||
| NS | ns01.trs-dns.com β | ||||||
| NS | ns.trs-dns.com | ||||||
| NS | ns01.trs-dns.net | ||||||
| NS | ns10.trs-dns.info | ||||||
| NS | ns10.trs-dns.org | ||||||
| SOA | ns.trs-dns.comtrs-ops@tucows.com serial=1788320016 | ||||||
Same first word
Similar names
Previous names
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DNS History
15 records (11 active, 4 former)
βNSdora.ns.cloudflare.com2026-08-17 β 2026-09-02 Β· 2 obs
β 2026-09-02 04:15:40
βNSjay.ns.cloudflare.com2026-08-17 β 2026-09-02 Β· 2 obs
β 2026-09-02 04:15:40
βMXalt1.aspmx.l.google.com2026-08-17 β 2026-09-02 Β· 2 obs
β 2026-09-02 04:15:40
βMXaspmx.l.google.com2026-08-17 β 2026-09-02 Β· 2 obs
β 2026-09-02 04:15:40
βMXmail.protonmail.ch2026-08-17 β 2026-09-02 Β· 2 obs
β 2026-09-02 04:15:40
βMXmailsec.protonmail.ch2026-08-17 β 2026-09-02 Β· 2 obs
β 2026-09-02 04:15:40
βMXmx1.sysadmin.host2026-08-23 β 2026-09-02 Β· 3 obs
β 2026-08-23 05:34:22
β 2026-09-02 04:15:40
βA104.21.92.2482026-08-17 β 2026-09-02 Β· 4 obs
β 2026-08-30 16:12:12
β 2026-08-31 18:58:54
β 2026-09-02 04:15:40
βA172.67.201.12026-08-17 β 2026-09-02 Β· 4 obs
β 2026-08-30 16:12:12
β 2026-08-31 18:58:54
β 2026-09-02 04:15:40
βA188.114.96.02026-08-30 β 2026-08-30 Β· 4 obs
β 2026-08-30 16:12:12
β 2026-08-31 18:58:54
β 2026-09-02 04:15:40
βA188.114.97.02026-08-30 β 2026-08-30 Β· 4 obs
β 2026-08-30 16:12:12
β 2026-08-31 18:58:54
β 2026-09-02 04:15:40
βA2606:4700:3032::6815:5cf82026-08-17 β 2026-09-02 Β· 4 obs
β 2026-08-30 16:12:12
β 2026-08-31 18:58:54
β 2026-09-02 04:15:40
βA2606:4700:3036::ac43:c9012026-08-17 β 2026-09-02 Β· 4 obs
β 2026-08-30 16:12:12
β 2026-08-31 18:58:54
β 2026-09-02 04:15:40
βA2a06:98c1:3120::2026-08-30 β 2026-08-30 Β· 4 obs
β 2026-08-30 16:12:12
β 2026-08-31 18:58:54
β 2026-09-02 04:15:40
βA2a06:98c1:3121::2026-08-30 β 2026-08-30 Β· 4 obs
β 2026-08-30 16:12:12
β 2026-08-31 18:58:54
β 2026-09-02 04:15:40
π DNS Trace
π Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| host | ns10.trs-dns.org, ns01.trs-dns.com, ns01.trs-dns.net, ns10.trs-dns.info | 8 records |
| sysadmin.host | jay.ns.cloudflare.com, dora.ns.cloudflare.com | - |
β Authoritative Response
Server:173.245.58.108
NS records: jay.ns.cloudflare.com, dora.ns.cloudflare.com
π DNSSEC Status
π Secure (DNSSEC validated)
Chain of trust verified from root to domain
β±οΈ Timing
Total: 1068ms | Queries: -
π Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 104.21.92.248, 172.67.201.1 |
| AAAA | 2 | 2606:4700:3032::6815:5cf8, 2606:4700:3036::ac43:c901 |
| NS | 2 | dora.ns.cloudflare.com, jay.ns.cloudflare.com |
| MX | 5 | mx1.sysadmin.host (pri: 10), mail.protonmail.ch (pri: 11)... |
| TXT | 4 | google-site-verification=48EcIOpJWiONUM8, mailyard-verification=895f932d2f3f53da22... |
| HTTPS | 1 | {"priority":1,"target":".","alpn":["h3", |
| SOA | 1 | dora.ns.cloudflare.com dns.cloudflare.co |
π Glue Records Collected
Total: 8
Out-of-bailiwick: 8 (ns10.trs-dns.info, ns10.trs-dns.org, ns01.trs-dns.net...)
Analysis
IP Addresses
sysadmin.host resolves to four IP addresses: 104.21.92.248, 172.67.201.1, 2606:4700:3032::6815:5cf8 and 2606:4700:3036::ac43:c901.
Among the host names that share IP numbers with sysadmin.host are lyttonmotorwayestate.com, cdschouten.nl, wq-5xa.shop and two others.
Name Servers
Two name servers handle the delegation for sysadmin.host: dora.ns.cloudflare.com and jay.ns.cloudflare.com.
sysadmin.host has the same name server delegation as a number of other domains, such as morgenn.ru, hyd.org.tr, pequenasnotaveis.net and two more.
sysadmin.host partially shares its NS delegation with several other domains, including marblesatchel.com, casadonya.com, edrgvaita.sbs and two others.
Host names resolving to 6 IP numbers:
dora.ns.cloudflare.com resolves to 108.162.192.108, 172.64.32.108 and 173.245.58.108 among others, with 3 other IP addresses in total.
jay.ns.cloudflare.com resolves to 108.162.193.123, 172.64.33.123 and 173.245.59.123 among others, with 3 other IP addresses in total.
Mail Servers
sysadmin.host is handled by five mail servers: mail.protonmail.ch, mailsec.protonmail.ch, mx1.sysadmin.host and two others.
sysadmin.host shares at least some of its mail servers with other domains β for example robertotunon.com, 24thdecember.com, chilhoweeclub.org and two more.
It is common to find these mail servers paired with mail servers aspmx.l.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com and 4 more.
Hosts with three IP address records:
The hostname mail.protonmail.ch points to 176.119.200.128, 185.70.42.128 and 185.205.70.128.
The hostname mailsec.protonmail.ch points to 176.119.200.129, 185.70.42.129 and 185.205.70.129.
Hosts with two IP numbers each:
aspmx.l.google.com resolves to two addresses: 192.178.155.27 and 2607:f8b0:4004:c1b::1a.
alt1.aspmx.l.google.com resolves to two addresses: 192.178.234.27 and 2800:3f0:4003:c14::1b.
Hosts that resolve to one IP address:
The hostname mx1.sysadmin.host resolves to 100.42.188.231.