CF1761448599889-tsm20251024211356

WWW.RTSAK.COM - mail.opt.dk

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mail.opt.dk checked at 2025-10-26T03:16:39.872Z 422ms 44/44/44 100% R:12

mail.opt.dk

A2606:4700:130:436c:6f75:6466:6c61:7265 🇺🇸 Cloudflare
A104.21.21.138 Cloudflare
A172.67.199.24🇺🇸 Cloudflare

opt.dk

MX.
NSnico.ns.cloudflare.com
NSstephane.ns.cloudflare.com
A2606:4700:3034::6815:158a 🇺🇸 Cloudflare
A2606:4700:3034::ac43:c718 🇺🇸 Cloudflare
A104.21.21.138 Cloudflare
A172.67.199.24🇺🇸 Cloudflare

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Perform reverse DNS lookup as well as normal forward DNS. Check Autonomous System Numbers (ASNs) and BGP connections between Internet Service Providers.
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Jyjjnai CF johedugfp 2025-10-26