mail.olslab.com - robtex.com

mail.olslab.com

DNSSEC⚠️ Not signed
A2606:4700:3036::6815:5b0b🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3037::ac43:a443🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.91.11Cloudflare104.21.80.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.164.67🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.91.11, 172.67.164.67
IPv6 hints2606:4700:3036::6815:5b0b, 2606:4700:3037::ac43:a443
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=43, name=cloudflare-ech.com

olslab.com

DNSSEC⚠️ Not signed
A2606:4700:3036::6815:5b0b🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3037::ac43:a443🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.91.11Cloudflare104.21.80.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.164.67🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSjoaquin.ns.cloudflare.com ⭐
NSmelany.ns.cloudflare.com
MXmxn.mxhichina.com ⭐
MXmxw.mxhichina.com(10)
TXTv=spf1include:spf.mxhichina.com -all
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.91.11, 172.67.164.67
IPv6 hints2606:4700:3036::6815:5b0b, 2606:4700:3037::ac43:a443
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=43, name=cloudflare-ech.com
SOAjoaquin.ns.cloudflare.comdns@cloudflare.com serial=2409416442

Previously MX for

olslab.com

Same first word

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DNS History

5 records (4 active, 1 former)

A104.21.91.11172.67.164.672606:4700:3036::6815:5b0b2606:4700:3037::ac43:a443CNAMEmail.mxhichina.com
●A104.21.91.112026-07-18 → 2026-07-18 · 1 obs
● 2026-07-18 19:35:12
●A172.67.164.672026-07-18 → 2026-07-18 · 1 obs
● 2026-07-18 19:35:12
●A2606:4700:3036::6815:5b0b2026-07-18 → 2026-07-18 · 1 obs
● 2026-07-18 19:35:12
●A2606:4700:3037::ac43:a4432026-07-18 → 2026-07-18 · 1 obs
● 2026-07-18 19:35:12
○CNAMEmail.mxhichina.com2026-05-01 → 2026-05-01 · 2 obs
● 2026-05-01 16:29:08
○ 2026-07-18 19:35:12

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
coma.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...-
olslab.commelany.ns.cloudflare.com, joaquin.ns.cloudflare.com12 records

✅ Authoritative Response

Server:108.162.194.138

NS records: melany.ns.cloudflare.com, joaquin.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for olslab.com (unsigned zone)

⏱️ Timing

Total: 1138ms | Queries: -

📄 Records

TypeCountSample Data
A2172.67.164.67, 104.21.91.11
AAAA22606:4700:3036::6815:5b0b, 2606:4700:3037::ac43:a443
HTTPS1{"priority":1,"target":".","alpn":["h3",

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

mail.olslab.com directs to four IP numbers, which are 104.21.91.11, 172.67.164.67, 2606:4700:3036::6815:5b0b and 2606:4700:3037::ac43:a443.

Two other host names, along with nightout.in, victoriaprentis.com and selection-echigoya.com, also share IP numbers with mail.olslab.com.