`mail.positivelab.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3030::6815:27ec^{🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3036::ac43:abd7^{🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.39.236^{Cloudflare104.21.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.171.215^{🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.39.236, 172.67.171.215
		IPv6 hints	2606:4700:3030::6815:27ec, 2606:4700:3036::ac43:abd7
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=69, name=cloudflare-ech.com

`positivelab.com`

DNSSEC	🔒 Signed (DS record present)
A	2606:4700:3030::6815:27ec^{🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3036::ac43:abd7^{🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.39.236^{Cloudflare104.21.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.171.215^{🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`lara.ns.cloudflare.com` ⭐
NS	`yew.ns.cloudflare.com`
MX	`mx.yandex.net` ⭐
TXT	`ca3-d917444231ac441eb6a57e598b4357ef`
TXT	`google-site-verification=1LeExmH8Y9ZnocqCYYDliKCaKluYs0M6eP5opOlqqpw`
TXT	`v=spf1 ip4:91.107.208.136 redirect=_spf.yandex.net`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.39.236, 172.67.171.215
		IPv6 hints	2606:4700:3030::6815:27ec, 2606:4700:3036::ac43:abd7
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=69, name=cloudflare-ech.com
SOA	`lara.ns.cloudflare.com`dns@cloudflare.com serial=2402299356

Same first word

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DNS History

10 records (4 active, 6 former)

●A104.21.39.2362026-04-09 → 2026-04-22 · 3 obs

○ 2019-12-12 05:29:42
● 2026-04-09 10:11:24
● 2026-04-22 13:14:10

●A172.67.171.2152026-04-09 → 2026-04-22 · 3 obs

○ 2019-12-12 05:29:42
● 2026-04-09 10:11:24
● 2026-04-22 13:14:10

○A188.114.96.02026-04-09 → 2026-04-22 · 2 obs

○ 2026-04-09 10:11:24
○ 2026-04-22 13:14:10

○A188.114.97.02026-04-09 → 2026-04-22 · 2 obs

○ 2026-04-09 10:11:24
○ 2026-04-22 13:14:10

○A209.123.162.2502015-06-05 → 2016-09-25 · 4 obs

● 2015-06-05 08:50:38
● 2016-09-25 15:10:54
○ 2019-12-12 05:29:42
○ 2026-04-22 13:14:10

●A2606:4700:3030::6815:27ec2026-04-09 → 2026-04-22 · 3 obs

○ 2019-12-12 05:29:42
● 2026-04-09 10:11:24
● 2026-04-22 13:14:10

●A2606:4700:3036::ac43:abd72026-04-09 → 2026-04-22 · 3 obs

○ 2019-12-12 05:29:42
● 2026-04-09 10:11:24
● 2026-04-22 13:14:10

○A2a06:98c1:3120::2026-04-09 → 2026-04-22 · 2 obs

○ 2026-04-09 10:11:24
○ 2026-04-22 13:14:10

○A2a06:98c1:3121::2026-04-09 → 2026-04-22 · 2 obs

○ 2026-04-09 10:11:24
○ 2026-04-22 13:14:10

○CNAMEdomain.mail.yandex.net2019-12-12 → 2020-06-21 · 4 obs

● 2019-12-12 05:29:42
● 2020-06-21 00:47:48
○ 2026-04-09 10:11:24
○ 2026-04-22 13:14:10

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
positivelab.com	lara.ns.cloudflare.com, yew.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.192.128

NS records: lara.ns.cloudflare.com, yew.ns.cloudflare.com

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 398ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.171.215, 104.21.39.236`
AAAA	2	`2606:4700:3036::ac43:abd7, 2606:4700:3030::6815:27ec`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`

📌 Glue Records Collected

Total: 12

Out-of-bailiwick: 12 (lara.ns.cloudflare.com, lara.ns.cloudflare.com, lara.ns.cloudflare.com...)

Analysis

IP Addresses

mail.positivelab.com points to four IP numbers: 2606:4700:3030::6815:27ec, 2606:4700:3036::ac43:abd7, 104.21.39.236 and 172.67.171.215.

Other host names, for instance www.jsfeida.cn, bigprogress.ru, cqyujunjc.com, 300531.com and google.ironny04.workers.dev share IP numbers with mail.positivelab.com.

mail.positivelab.com - robtex.com