johnu.com - robtex.com

johnu.com

DNSSEC⚠️ Not signed
A75.2.60.5πŸ‡ΊπŸ‡Έ Amazon
PTRacd89244c803f7181.awsglobalaccelerator.com
NSns-1709.awsdns-21.co.uk ⭐
A2600:9000:5306:ad00::1πŸ‡ΊπŸ‡Έ Amazon
PTRns-1709.awsdns-21.co.uk
A205.251.198.173πŸ‡ΊπŸ‡Έ Amazon
PTRns-1709.awsdns-21.co.uk
NSns-1302.awsdns-34.org
A2600:9000:5305:1600::1πŸ‡ΊπŸ‡Έ Amazon
PTRns-1302.awsdns-34.org
A205.251.197.22πŸ‡ΊπŸ‡Έ Amazon
PTRns-1302.awsdns-34.org
NSns-263.awsdns-32.com
A2600:9000:5301:700::1πŸ‡ΊπŸ‡Έ Amazon
PTRns-263.awsdns-32.com
A205.251.193.7πŸ‡ΊπŸ‡Έ Amazon
PTRns-263.awsdns-32.com
NSns-731.awsdns-27.net
A2600:9000:5302:db00::1πŸ‡ΊπŸ‡Έ Amazon
PTRns-731.awsdns-27.net
A205.251.194.219πŸ‡ΊπŸ‡Έ Amazon
PTRns-731.awsdns-27.net
MXmail.protonmail.ch ⭐ πŸ”’
A176.119.200.128πŸ‡¨πŸ‡­ Proton
PTRmail.protonmail.ch
A185.70.42.128πŸ‡¨πŸ‡­ Proton
PTRmail.protonmail.ch
A185.205.70.128πŸ‡«πŸ‡· Proton
PTRmail.protonmail.ch
MXmailsec.protonmail.ch(20) πŸ”’
A176.119.200.129πŸ‡¨πŸ‡­ Proton
PTRmailsec.protonmail.ch
A185.70.42.129πŸ‡¨πŸ‡­ Proton
PTRmailsec.protonmail.ch
A185.205.70.129πŸ‡«πŸ‡· Proton
PTRmailsec.protonmail.ch
TXTprotonmail-verification=289e311727e2743dd4c9d64b731afefd36138437
TXTv=spf1 include:_spf.protonmail.ch mx ~all
SOAns-1709.awsdns-21.co.ukawsdns-hostmaster@amazon.com serial=1

com

Same first word

Similar names

DNS History

79 records (7 active, 72 former)

20162017201820192020202120222023202420252026NSns-1302.awsdns-34.orgns-1709.awsdns-21.co.ukns-263.awsdns-32.comns-731.awsdns-27.netdns1.registrar-servers.comdns2.registrar-servers.comns43.domaincontrol.comns44.domaincontrol.comMXmail.protonmail.chmailsec.protonmail.chmailstore1.secureserver.netsmtp.secureserver.netA75.2.60.513.32.253.12913.32.253.16113.32.253.16913.32.253.21813.32.253.21913.32.253.4213.32.253.8713.32.253.88184.168.221.2952.84.174.12752.84.174.12952.84.174.17852.84.174.18852.84.174.3452.84.174.5152.84.174.652.84.174.9252.84.245.18852.84.245.19252.84.245.22152.84.245.22252.84.245.24252.84.245.24752.84.245.5852.84.245.6652.84.33.10452.84.33.15552.84.33.21052.84.33.23352.84.33.24052.84.33.2652.84.33.4452.84.33.6552.87.53.4254.192.135.12154.192.135.13654.192.135.13954.192.135.1854.192.135.20454.192.135.20954.192.135.24254.192.135.4954.192.151.17754.192.151.19254.192.151.20254.192.151.21454.192.151.22054.192.151.24054.192.151.454.192.151.954.192.29.13354.192.29.20954.192.29.23954.192.29.3454.192.29.3954.192.29.4954.192.29.6454.192.29.9454.230.109.11754.230.109.13154.230.109.14454.230.109.15954.230.109.17954.230.109.4354.230.109.6054.230.109.99
β—‹NSdns1.registrar-servers.com2016-07-07 β†’ 2016-07-07 Β· 4 obs
β—‹ 2016-03-02 18:18:24
● 2016-07-07 01:01:22
β—‹ 2017-05-25 21:24:10
β—‹ 2026-02-22 01:35:08
β—‹NSdns2.registrar-servers.com2016-07-07 β†’ 2016-07-07 Β· 4 obs
β—‹ 2016-03-02 18:18:24
● 2016-07-07 01:01:22
β—‹ 2017-05-25 21:24:10
β—‹ 2026-02-22 01:35:08
●NSns-1302.awsdns-34.org2017-05-25 β†’ 2026-02-22 Β· 3 obs
β—‹ 2016-07-07 01:01:22
● 2017-05-25 21:24:10
● 2026-02-22 01:35:08
●NSns-1709.awsdns-21.co.uk2017-05-25 β†’ 2026-02-22 Β· 3 obs
β—‹ 2016-07-07 01:01:22
● 2017-05-25 21:24:10
● 2026-02-22 01:35:08
●NSns-263.awsdns-32.com2017-05-25 β†’ 2026-02-22 Β· 3 obs
β—‹ 2016-07-07 01:01:22
● 2017-05-25 21:24:10
● 2026-02-22 01:35:08
●NSns-731.awsdns-27.net2017-05-25 β†’ 2026-02-22 Β· 3 obs
β—‹ 2016-07-07 01:01:22
● 2017-05-25 21:24:10
● 2026-02-22 01:35:08
β—‹NSns43.domaincontrol.com2015-07-31 β†’ 2016-03-02 Β· 4 obs
● 2015-07-31 22:37:46
● 2016-03-02 18:18:24
β—‹ 2016-07-07 01:01:22
β—‹ 2026-02-22 01:35:08
β—‹NSns44.domaincontrol.com2015-07-31 β†’ 2016-03-02 Β· 4 obs
● 2015-07-31 22:37:46
● 2016-03-02 18:18:24
β—‹ 2016-07-07 01:01:22
β—‹ 2026-02-22 01:35:08
●MXmail.protonmail.ch2026-02-22 β†’ 2026-02-22 Β· 2 obs
β—‹ 2016-07-07 01:01:22
● 2026-02-22 01:35:08
●MXmailsec.protonmail.ch2026-02-22 β†’ 2026-02-22 Β· 2 obs
β—‹ 2016-07-07 01:01:22
● 2026-02-22 01:35:08
β—‹MXmailstore1.secureserver.net2015-07-31 β†’ 2016-03-02 Β· 4 obs
● 2015-07-31 22:37:46
● 2016-03-02 18:18:24
β—‹ 2016-07-07 01:01:22
β—‹ 2026-02-22 01:35:08
β—‹MXsmtp.secureserver.net2015-07-31 β†’ 2016-03-02 Β· 4 obs
● 2015-07-31 22:37:46
● 2016-03-02 18:18:24
β—‹ 2016-07-07 01:01:22
β—‹ 2026-02-22 01:35:08
β—‹A13.32.253.1292017-05-25 β†’ 2017-05-25 Β· 3 obs
β—‹ 2016-07-07 01:01:22
● 2017-05-25 21:24:10
β—‹ 2026-02-22 01:35:08
β—‹A13.32.253.1612017-05-25 β†’ 2017-05-25 Β· 3 obs
β—‹ 2016-07-07 01:01:22
● 2017-05-25 21:24:10
β—‹ 2026-02-22 01:35:08
β—‹A13.32.253.1692017-05-25 β†’ 2017-05-25 Β· 3 obs
β—‹ 2016-07-07 01:01:22
● 2017-05-25 21:24:10
β—‹ 2026-02-22 01:35:08
β—‹A13.32.253.2182017-05-25 β†’ 2017-05-25 Β· 3 obs
β—‹ 2016-07-07 01:01:22
● 2017-05-25 21:24:10
β—‹ 2026-02-22 01:35:08
β—‹A13.32.253.2192017-05-25 β†’ 2017-05-25 Β· 3 obs
β—‹ 2016-07-07 01:01:22
● 2017-05-25 21:24:10
β—‹ 2026-02-22 01:35:08
β—‹A13.32.253.422017-05-25 β†’ 2017-05-25 Β· 3 obs
β—‹ 2016-07-07 01:01:22
● 2017-05-25 21:24:10
β—‹ 2026-02-22 01:35:08
β—‹A13.32.253.872017-05-25 β†’ 2017-05-25 Β· 3 obs
β—‹ 2016-07-07 01:01:22
● 2017-05-25 21:24:10
β—‹ 2026-02-22 01:35:08
β—‹A13.32.253.882017-05-25 β†’ 2017-05-25 Β· 3 obs
β—‹ 2016-07-07 01:01:22
● 2017-05-25 21:24:10
β—‹ 2026-02-22 01:35:08
β—‹A184.168.221.292015-07-31 β†’ 2016-03-02 Β· 4 obs
● 2015-07-31 22:37:46
● 2016-03-02 18:18:24
β—‹ 2016-07-07 01:01:22
β—‹ 2026-02-22 01:35:08
β—‹A52.84.174.1272017-05-25 β†’ 2017-05-25 Β· 3 obs
β—‹ 2016-07-07 01:01:22
● 2017-05-25 21:24:10
β—‹ 2026-02-22 01:35:08
β—‹A52.84.174.1292017-05-25 β†’ 2017-05-25 Β· 3 obs
β—‹ 2016-07-07 01:01:22
● 2017-05-25 21:24:10
β—‹ 2026-02-22 01:35:08
β—‹A52.84.174.1782017-05-25 β†’ 2017-05-25 Β· 3 obs
β—‹ 2016-07-07 01:01:22
● 2017-05-25 21:24:10
β—‹ 2026-02-22 01:35:08
β—‹A52.84.174.1882017-05-25 β†’ 2017-05-25 Β· 3 obs
β—‹ 2016-07-07 01:01:22
● 2017-05-25 21:24:10
β—‹ 2026-02-22 01:35:08
β—‹A52.84.174.342017-05-25 β†’ 2017-05-25 Β· 3 obs
β—‹ 2016-07-07 01:01:22
● 2017-05-25 21:24:10
β—‹ 2026-02-22 01:35:08
β—‹A52.84.174.512017-05-25 β†’ 2017-05-25 Β· 3 obs
β—‹ 2016-07-07 01:01:22
● 2017-05-25 21:24:10
β—‹ 2026-02-22 01:35:08
β—‹A52.84.174.62017-05-25 β†’ 2017-05-25 Β· 3 obs
β—‹ 2016-07-07 01:01:22
● 2017-05-25 21:24:10
β—‹ 2026-02-22 01:35:08
β—‹A52.84.174.922017-05-25 β†’ 2017-05-25 Β· 3 obs
β—‹ 2016-07-07 01:01:22
● 2017-05-25 21:24:10
β—‹ 2026-02-22 01:35:08
β—‹A52.84.245.1882017-05-25 β†’ 2017-05-25 Β· 3 obs
β—‹ 2016-07-07 01:01:22
● 2017-05-25 21:24:10
β—‹ 2026-02-22 01:35:08
β—‹A52.84.245.1922017-05-25 β†’ 2017-05-25 Β· 3 obs
β—‹ 2016-07-07 01:01:22
● 2017-05-25 21:24:10
β—‹ 2026-02-22 01:35:08
β—‹A52.84.245.2212017-05-25 β†’ 2017-05-25 Β· 3 obs
β—‹ 2016-07-07 01:01:22
● 2017-05-25 21:24:10
β—‹ 2026-02-22 01:35:08
β—‹A52.84.245.2222017-05-25 β†’ 2017-05-25 Β· 3 obs
β—‹ 2016-07-07 01:01:22
● 2017-05-25 21:24:10
β—‹ 2026-02-22 01:35:08
β—‹A52.84.245.2422017-05-25 β†’ 2017-05-25 Β· 3 obs
β—‹ 2016-07-07 01:01:22
● 2017-05-25 21:24:10
β—‹ 2026-02-22 01:35:08
β—‹A52.84.245.2472017-05-25 β†’ 2017-05-25 Β· 3 obs
β—‹ 2016-07-07 01:01:22
● 2017-05-25 21:24:10
β—‹ 2026-02-22 01:35:08
β—‹A52.84.245.582017-05-25 β†’ 2017-05-25 Β· 3 obs
β—‹ 2016-07-07 01:01:22
● 2017-05-25 21:24:10
β—‹ 2026-02-22 01:35:08
β—‹A52.84.245.662017-05-25 β†’ 2017-05-25 Β· 3 obs
β—‹ 2016-07-07 01:01:22
● 2017-05-25 21:24:10
β—‹ 2026-02-22 01:35:08
β—‹A52.84.33.1042017-05-25 β†’ 2017-05-25 Β· 3 obs
β—‹ 2016-07-07 01:01:22
● 2017-05-25 21:24:10
β—‹ 2026-02-22 01:35:08
β—‹A52.84.33.1552017-05-25 β†’ 2017-05-25 Β· 3 obs
β—‹ 2016-07-07 01:01:22
● 2017-05-25 21:24:10
β—‹ 2026-02-22 01:35:08
β—‹A52.84.33.2102017-05-25 β†’ 2017-05-25 Β· 3 obs
β—‹ 2016-07-07 01:01:22
● 2017-05-25 21:24:10
β—‹ 2026-02-22 01:35:08
β—‹A52.84.33.2332017-05-25 β†’ 2017-05-25 Β· 3 obs
β—‹ 2016-07-07 01:01:22
● 2017-05-25 21:24:10
β—‹ 2026-02-22 01:35:08
β—‹A52.84.33.2402017-05-25 β†’ 2017-05-25 Β· 3 obs
β—‹ 2016-07-07 01:01:22
● 2017-05-25 21:24:10
β—‹ 2026-02-22 01:35:08
β—‹A52.84.33.262017-05-25 β†’ 2017-05-25 Β· 3 obs
β—‹ 2016-07-07 01:01:22
● 2017-05-25 21:24:10
β—‹ 2026-02-22 01:35:08
β—‹A52.84.33.442017-05-25 β†’ 2017-05-25 Β· 3 obs
β—‹ 2016-07-07 01:01:22
● 2017-05-25 21:24:10
β—‹ 2026-02-22 01:35:08
β—‹A52.84.33.652017-05-25 β†’ 2017-05-25 Β· 3 obs
β—‹ 2016-07-07 01:01:22
● 2017-05-25 21:24:10
β—‹ 2026-02-22 01:35:08
β—‹A52.87.53.422016-07-07 β†’ 2016-07-07 Β· 4 obs
β—‹ 2016-03-02 18:18:24
● 2016-07-07 01:01:22
β—‹ 2017-05-25 21:24:10
β—‹ 2026-02-22 01:35:08
β—‹A54.192.135.1212017-05-25 β†’ 2017-05-25 Β· 3 obs
β—‹ 2016-07-07 01:01:22
● 2017-05-25 21:24:10
β—‹ 2026-02-22 01:35:08
β—‹A54.192.135.1362017-05-25 β†’ 2017-05-25 Β· 3 obs
β—‹ 2016-07-07 01:01:22
● 2017-05-25 21:24:10
β—‹ 2026-02-22 01:35:08
β—‹A54.192.135.1392017-05-25 β†’ 2017-05-25 Β· 3 obs
β—‹ 2016-07-07 01:01:22
● 2017-05-25 21:24:10
β—‹ 2026-02-22 01:35:08
β—‹A54.192.135.182017-05-25 β†’ 2017-05-25 Β· 3 obs
β—‹ 2016-07-07 01:01:22
● 2017-05-25 21:24:10
β—‹ 2026-02-22 01:35:08
β—‹A54.192.135.2042017-05-25 β†’ 2017-05-25 Β· 3 obs
β—‹ 2016-07-07 01:01:22
● 2017-05-25 21:24:10
β—‹ 2026-02-22 01:35:08
β—‹A54.192.135.2092017-05-25 β†’ 2017-05-25 Β· 3 obs
β—‹ 2016-07-07 01:01:22
● 2017-05-25 21:24:10
β—‹ 2026-02-22 01:35:08
β—‹A54.192.135.2422017-05-25 β†’ 2017-05-25 Β· 3 obs
β—‹ 2016-07-07 01:01:22
● 2017-05-25 21:24:10
β—‹ 2026-02-22 01:35:08
β—‹A54.192.135.492017-05-25 β†’ 2017-05-25 Β· 3 obs
β—‹ 2016-07-07 01:01:22
● 2017-05-25 21:24:10
β—‹ 2026-02-22 01:35:08
β—‹A54.192.151.1772017-05-25 β†’ 2017-05-25 Β· 3 obs
β—‹ 2016-07-07 01:01:22
● 2017-05-25 21:24:10
β—‹ 2026-02-22 01:35:08
β—‹A54.192.151.1922017-05-25 β†’ 2017-05-25 Β· 3 obs
β—‹ 2016-07-07 01:01:22
● 2017-05-25 21:24:10
β—‹ 2026-02-22 01:35:08
β—‹A54.192.151.2022017-05-25 β†’ 2017-05-25 Β· 3 obs
β—‹ 2016-07-07 01:01:22
● 2017-05-25 21:24:10
β—‹ 2026-02-22 01:35:08
β—‹A54.192.151.2142017-05-25 β†’ 2017-05-25 Β· 3 obs
β—‹ 2016-07-07 01:01:22
● 2017-05-25 21:24:10
β—‹ 2026-02-22 01:35:08
β—‹A54.192.151.2202017-05-25 β†’ 2017-05-25 Β· 3 obs
β—‹ 2016-07-07 01:01:22
● 2017-05-25 21:24:10
β—‹ 2026-02-22 01:35:08
β—‹A54.192.151.2402017-05-25 β†’ 2017-05-25 Β· 3 obs
β—‹ 2016-07-07 01:01:22
● 2017-05-25 21:24:10
β—‹ 2026-02-22 01:35:08
β—‹A54.192.151.42017-05-25 β†’ 2017-05-25 Β· 3 obs
β—‹ 2016-07-07 01:01:22
● 2017-05-25 21:24:10
β—‹ 2026-02-22 01:35:08
β—‹A54.192.151.92017-05-25 β†’ 2017-05-25 Β· 3 obs
β—‹ 2016-07-07 01:01:22
● 2017-05-25 21:24:10
β—‹ 2026-02-22 01:35:08
β—‹A54.192.29.1332017-05-25 β†’ 2017-05-25 Β· 3 obs
β—‹ 2016-07-07 01:01:22
● 2017-05-25 21:24:10
β—‹ 2026-02-22 01:35:08
β—‹A54.192.29.2092017-05-25 β†’ 2017-05-25 Β· 3 obs
β—‹ 2016-07-07 01:01:22
● 2017-05-25 21:24:10
β—‹ 2026-02-22 01:35:08
β—‹A54.192.29.2392017-05-25 β†’ 2017-05-25 Β· 3 obs
β—‹ 2016-07-07 01:01:22
● 2017-05-25 21:24:10
β—‹ 2026-02-22 01:35:08
β—‹A54.192.29.342017-05-25 β†’ 2017-05-25 Β· 3 obs
β—‹ 2016-07-07 01:01:22
● 2017-05-25 21:24:10
β—‹ 2026-02-22 01:35:08
β—‹A54.192.29.392017-05-25 β†’ 2017-05-25 Β· 3 obs
β—‹ 2016-07-07 01:01:22
● 2017-05-25 21:24:10
β—‹ 2026-02-22 01:35:08
β—‹A54.192.29.492017-05-25 β†’ 2017-05-25 Β· 3 obs
β—‹ 2016-07-07 01:01:22
● 2017-05-25 21:24:10
β—‹ 2026-02-22 01:35:08
β—‹A54.192.29.642017-05-25 β†’ 2017-05-25 Β· 3 obs
β—‹ 2016-07-07 01:01:22
● 2017-05-25 21:24:10
β—‹ 2026-02-22 01:35:08
β—‹A54.192.29.942017-05-25 β†’ 2017-05-25 Β· 3 obs
β—‹ 2016-07-07 01:01:22
● 2017-05-25 21:24:10
β—‹ 2026-02-22 01:35:08
β—‹A54.230.109.1172017-05-25 β†’ 2017-05-25 Β· 3 obs
β—‹ 2016-07-07 01:01:22
● 2017-05-25 21:24:10
β—‹ 2026-02-22 01:35:08
β—‹A54.230.109.1312017-05-25 β†’ 2017-05-25 Β· 3 obs
β—‹ 2016-07-07 01:01:22
● 2017-05-25 21:24:10
β—‹ 2026-02-22 01:35:08
β—‹A54.230.109.1442017-05-25 β†’ 2017-05-25 Β· 3 obs
β—‹ 2016-07-07 01:01:22
● 2017-05-25 21:24:10
β—‹ 2026-02-22 01:35:08
β—‹A54.230.109.1592017-05-25 β†’ 2017-05-25 Β· 3 obs
β—‹ 2016-07-07 01:01:22
● 2017-05-25 21:24:10
β—‹ 2026-02-22 01:35:08
β—‹A54.230.109.1792017-05-25 β†’ 2017-05-25 Β· 3 obs
β—‹ 2016-07-07 01:01:22
● 2017-05-25 21:24:10
β—‹ 2026-02-22 01:35:08
β—‹A54.230.109.432017-05-25 β†’ 2017-05-25 Β· 3 obs
β—‹ 2016-07-07 01:01:22
● 2017-05-25 21:24:10
β—‹ 2026-02-22 01:35:08
β—‹A54.230.109.602017-05-25 β†’ 2017-05-25 Β· 3 obs
β—‹ 2016-07-07 01:01:22
● 2017-05-25 21:24:10
β—‹ 2026-02-22 01:35:08
β—‹A54.230.109.992017-05-25 β†’ 2017-05-25 Β· 3 obs
β—‹ 2016-07-07 01:01:22
● 2017-05-25 21:24:10
β—‹ 2026-02-22 01:35:08
●A75.2.60.52026-02-22 β†’ 2026-02-22 Β· 2 obs
β—‹ 2017-05-25 21:24:10
● 2026-02-22 01:35:08

πŸ” DNS Trace

πŸ“‹ Delegation Chain

ZoneNameserversGlue
johnu.comns-263.awsdns-32.com, ns-731.awsdns-27.net, ns-1709.awsdns-21.co.uk, ns-1302.awsdns-34.org-

βœ… Authoritative Response

Server: 205.251.194.219

NS records: ns-263.awsdns-32.com, ns-731.awsdns-27.net, ns-1709.awsdns-21.co.uk, ns-1302.awsdns-34.org

πŸ”’ DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for johnu.com (unsigned zone)

⏱️ Timing

Total: 132ms | Queries: -

πŸ“„ Records

TypeCountSample Data
A175.2.60.5
NS4ns-1302.awsdns-34.org, ns-1709.awsdns-21.co.uk...
MX2mail.protonmail.ch (pri: 10), mailsec.protonmail.ch (pri: 20)
TXT2protonmail-verification=289e311727e2743d, v=spf1 include:_spf.protonmail.ch mx ~al
SOA1ns-1709.awsdns-21.co.uk awsdns-hostmaste

AI analysis

johnu.com points to a single IP number: 75.2.60.5.

Other host names, for instance reemix.com.br, dynaprice.com, empatica.com, neue-philharmonie-hamburg.com and prime-e.cn share IP numbers with johnu.com.

johnu.com is delegated to four name servers: ns-263.awsdns-32.com, ns-731.awsdns-27.net, ns-1302.awsdns-34.org and ns-1709.awsdns-21.co.uk.

johnu.com at least partially shares name servers with other domains, for instance americanfast.net, bionicears.net, d3nhwsdpnrj52v.cloudfront.net, ac-gmo-modules.com and d3nmfhcmj9syx6.cloudfront.net.

These name servers are commonly used alongside ns-376.awsdns-47.com, ns-1516.awsdns-61.org, ns-1560.awsdns-03.co.uk and ns-932.awsdns-52.net.

Host names with two IP numbers:

ns-263.awsdns-32.com points to: 2600:9000:5301:700::1 and 205.251.193.7.

ns-731.awsdns-27.net points to: 2600:9000:5302:db00::1 and 205.251.194.219.

ns-1302.awsdns-34.org points to: 2600:9000:5305:1600::1 and 205.251.197.22.

ns-1709.awsdns-21.co.uk points to: 2600:9000:5306:ad00::1 and 205.251.198.173.

johnu.com is handled by two mail servers: mail.protonmail.ch and mailsec.protonmail.ch.

johnu.com uses the same mail server configuration as other domains, such as cyberhut.co.uk, ulys.ch, ftuapps.dev, aliciacmillington.com and usiconline.org.

johnu.com shares mail servers with other domains at least in part, for instance grell.us, batholsen.com, m4rk.net, arjen.org and unixdc.com.

Host names with three IP numbers: The host name mail.protonmail.ch points to 176.119.200.128, 185.70.42.128 and 185.205.70.128; The host name mailsec.protonmail.ch points to 176.119.200.129, 185.70.42.129 and 185.205.70.129.