`mail.sidoc.info`

DNSSEC	⚠️ Not signed
A	217.91.78.172^{🇩🇪 DTAG217.80.0.0/12 Deutsche Telekom AG, Internet service provider}
		PTR	`www.2net.de`
		PTR	`www.sidoc.info`

`sidoc.info`

	DNSSEC	⚠️ Not signed
	A	217.91.78.172^{🇩🇪 DTAG217.80.0.0/12 Deutsche Telekom AG, Internet service provider}
	NS	`dns01-tld.t-online.de` ⭐
	NS	`dns02-tld.t-online.de`
	MX	`mail.sidoc.info` ⭐
	TXT	`v=spf1 ip4:217.91.78.172 ip4:194.25.134.16/29 ip4:194.25.134.80/29 ip4:80.150...`
	SOA	`dns01-tld.t-online.de`dns@telekom.de 2023-09-01 #1

MX for

sidoc.info

Same first word

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Similar names

liam.me

mail.lt

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almi.by

DNS History

1 record (1 active, 0 former)

●A217.91.78.1722026-02-27 → 2026-05-11 · 2 obs

● 2026-02-27 14:25:06
● 2026-05-11 02:54:42

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
info	a0.info.afilias-nst.info, a2.info.afilias-nst.info, c0.info.afilias-nst.info	-
sidoc.info	dns02-tld.t-online.de, dns01-tld.t-online.de	-

✅ Authoritative Response

Server:212.185.24.9

NS records: dns02-tld.t-online.de, dns01-tld.t-online.de

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for sidoc.info (unsigned zone)

⏱️ Timing

Total: 878ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`217.91.78.172`

Analysis

Mail Server Role

mail.sidoc.info functions as a mail server for sidoc.info.

IP Addresses

mail.sidoc.info points to IP number: 217.91.78.172.

Other host names such as 2net.de, mail.2net.de, sidoc.info, www.2net.de and www.sidoc.info share IPs with mail.sidoc.info.

mail.sidoc.info - robtex.com

mail.sidoc.info

sidoc.info