DNS SOA

From annawiki

https://www.ultratools.com/tools/dnsLookup

https://mxtoolbox.com/SuperTool.aspx?action=dns%3aanna.info

SOA Refresh Value is outside of the recommended range
dns100.ovh.net reported Refresh 86400 : Refresh is recommended to be between 1200 and 43200.
SOA Expire Value out of recommended range
dns100.ovh.net reported Expire 3600000 : Expire is recommended to be between 1209600 and 2419200.

anna.info is hosted by OVH and cannot change the values!

Recommendation
URL Refresh Retry Expire TTL
https://www.worldwidedns.net/faq_help/recommended_soa_parameters.asp 21600 10800 604800 43200
https://www.ietf.org/rfc/rfc1912.txt fraction of the refresh interval 2-4 weeks are suggested values (1209600 - 2419200) 1-5 days are typical values (86400 - 432000)
SOA value by domain
Domain serial number refresh retry expire minimum
anna.info dns100.ovh.net. tech.ovh.net. 2017082600 86400 3600 3600000 86400
example.com sns.dns.icann.org. noc.dns.icann.org. 2017042772 7200 3600 1209600 3600
ietf.org ns0.amsl.com. glen.amsl.com. 1200000363 1800 1800 604800 1800
icann.org sns.dns.icann.org. noc.dns.icann.org. 2017082612 10800 3600 1209600 3600
ripe.net manus.authdns.ripe.net. dns.ripe.net. 1503847202 3600 600 864000 300
arin.net ns1.arin.net. bind.arin.net. 2017071840 10800 600 1209600 3600
amazon.com dns-external-master.amazon.com. root.amazon.com. 2010114126 180 60 3024000 60
baidu.com dns.baidu.com. sa.baidu.com. 2012136443 300 300 2592000 7200
europa.eu ns1lux.europa.eu. snet.ec.europa.eu. 2017082401 3600 600 604800 1800
facebook.com a.ns.facebook.com. dns.facebook.com. 1503838434 7200 1800 604800 120
google.com ns2.google.com. dns-admin.google.com. 166610135 900 900 1800 60
microsoft.com ns1.msft.net. msnhst.microsoft.com. 2017082508 7200 600 2419200 3600
twitter.com ns-881.awsdns-46.net. ops.twitter.com. 2007131073 3600 600 604800 60
yahoo.com ns1.yahoo.com. hostmaster.yahoo-inc.com. 2017082608 3600 300 1814400 600
heise.de ns.heise.de. hostmaster.heise.de. 2017082401 10800 3600 604800 3600
akamai.com ns1-2.akam.net. hostmaster.akamai.com. 2017082502 7200 3600 1209600 300
ovh.com dns.ovh.net. tech.ovh.net. 2017082699 86400 3600 3600000 600
1and1.com ns-1and1.ui-dns.com. dnsadmin.1und1.de. 2013087685 10800 3600 604800 600
schlundtech.de nsa.domain-robot.org. hostmaster.schlundtech.de. 2017050401 39940 14400 604800 43200
mxtoolbox.com ns-59.awsdns-07.com. awsdns-hostmaster.amazon.com. 1 7200 900 1209600 86400
mailbox.org ns.jpberlin.de. root.jpberlin.de. 2014063804 40000 7200 604800 86400
posteo.de ns01.posteo-dns.de. hostmaster.sys4.de. 1503795646 3600 900 604800 300
kolabnow.com sec1.rcode0.net. hostmaster.kolabsys.com. 2017082401 1200 600 1814400 60
protonmail.com ns1.protonmail.ch. support.protonmail.ch. 2017082204 1200 144 1814400 7200