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DNS records for dev.csdn.net

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IP addresses (A records)
1
115.124.18.138
IP? TTL? Country Organization AS? Timestamp?
115.124.18.138 TTL 600 Country
China
Organization Hangzhou Alibaba Advertising Co.,Ltd. AS AS37963 Timestamp Aug 2017
Mail servers (MX records)
1
mx.mail.dev.csdn.net
MX Domain? IP? Country Organization AS? Priority TTL? Timestamp?
mx.mail.dev.csdn.net IP 115.124.18.140 Country
China
Organization Hangzhou Alibaba Advertising Co.,Ltd. ASN AS37963 Priority 5 TTL 600 Timestamp Feb 2018
SOA records
1
ns3.dnsv3.com
NS Domain? Hostmaster? Serial? Refresh? Retry? Expires? TTL? Timestamp?
ns3.dnsv3.com Hostmaster enterprise1dnsadmin.dnspod.com Serial 1502119953 Refresh 3600 Retry 180 Expires 1209600 TTL 599 Timestamp Aug 2017
TXT records
1
Data TTL? Timestamp?
spf1.csdn.mail.aliyun.com TTL 0 Timestamp Aug 2017
Subdomains
2
mail.dev.csdn.net, mx.mail.dev.csdn.net
Domain IP Country Organization AS? OSH? SD? Timestamp?
mail.dev.csdn.net IP 115.124.18.138 Country
China
Organization Hangzhou Alibaba Advertising Co.,Ltd. ASN AS37963 OSH 2 SD 1 Timestamp Feb 2018
mx.mail.dev.csdn.net IP 115.124.18.140 Country
China
Organization Hangzhou Alibaba Advertising Co.,Ltd. ASN AS37963 OSH 1 SD - Timestamp Feb 2018
Domains on same IP
2
dev.csdn.net, mail.dev.csdn.net
Domain Country Organization AS? SD? Timestamp?
dev.csdn.net Country
China
Organization Hangzhou Alibaba Advertising Co.,Ltd. ASN AS37963 SD 2 Timestamp Aug 2017
mail.dev.csdn.net Country
China
Organization Hangzhou Alibaba Advertising Co.,Ltd. ASN AS37963 SD 1 Timestamp Feb 2018
Domains with same MX
1
dev.csdn.net
Domain Country Organization AS? OSH? Timestamp?
dev.csdn.net Country
China
Organization Hangzhou Alibaba Advertising Co.,Ltd. ASN AS37963 OSH 2 Timestamp Aug 2017

TTL

Time to live is used for computer data including DNS servers. It is nothing but time on the period of time or number of iterations or transmissions in computer and computer network technology that a unit of data (e.g. a packet) can experience before it should be discarded. Usually TTL value is 86400 seconds, which is 24 hours.

Timestamp

Last time seen by DNStable.

MX Record

MX stands for "Mail eXchanger".

AS

Autonomous System - owner of IP addresses and unit of routing policy of the Internet

NS record

Name Server (NS) Record: Describes a name server for the domain that permits DNS lookups within several zones. The host name of the primary DNS server for the zone.

Hostmaster

The e-mail address of the person responsible for the zone. The standard for this is the "hostmaster" alias - such as "hostmaster@example.com" (hostmaster.example.com in a field). In a hostmaster field @ symbol always replace by dot.

Serial

Used by secondary DNS servers to check if the zone has changed. If the serial number is higher than what the secondary server has, a zone transfer will be initiated. Often serial number is performed like date: yyyymmddnn (where nn - is a index number in current day).

Refresh interval

How often secondary DNS servers should check if changes are made to the zone.

Retry interval

How often secondary DNS server should retry checking if changes are made - if the first refresh fails.

Expires interval

How long the zone will be valid after a refresh. Secondary servers will discard the zone if no refresh could be made within this interval.

OSH

On Same Host. Indicate, how many domain DNS A record mapped to same IP address.

SD

Number of domain subdomains.

IP

Last seen IP address for domain

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