coursera-auth.org - robtex.com

coursera-auth.org

DNSSECโš ๏ธ Not signed

org

DNSSEC๐Ÿ”’ Signed (DS record present)
NSa0.org.afilias-nst.info โญ โš ๏ธ Not in parent delegation
NSa2.org.afilias-nst.info โš ๏ธ Not in parent delegation
NSb0.org.afilias-nst.org
NSb2.org.afilias-nst.org
NSc0.org.afilias-nst.info โš ๏ธ Not in parent delegation
NSd0.org.afilias-nst.org
SOAa0.org.afilias-nst.infohostmaster@donuts.email serial=1777471710
โš ๏ธ On DNS blocklist: pro.plus, tif, ultimate

Subdomains

Similar names

DNS History

6 records (0 active, 6 former)

NSivan.ns.cloudflare.comkay.ns.cloudflare.comA104.21.12.25172.67.151.822606:4700:3031::6815:c192606:4700:3037::ac43:9752
โ—‹NSivan.ns.cloudflare.com2026-04-23 โ†’ 2026-04-23 ยท 3 obs
โ— 2026-04-23 01:59:14
โ—‹ 2026-04-24 17:59:10
โ—‹ 2026-04-29 14:29:22
โ—‹NSkay.ns.cloudflare.com2026-04-23 โ†’ 2026-04-23 ยท 3 obs
โ— 2026-04-23 01:59:14
โ—‹ 2026-04-24 17:59:10
โ—‹ 2026-04-29 14:29:22
โ—‹A104.21.12.252026-04-23 โ†’ 2026-04-23 ยท 3 obs
โ— 2026-04-23 01:59:14
โ—‹ 2026-04-24 17:59:10
โ—‹ 2026-04-29 14:29:22
โ—‹A172.67.151.822026-04-23 โ†’ 2026-04-23 ยท 3 obs
โ— 2026-04-23 01:59:14
โ—‹ 2026-04-24 17:59:10
โ—‹ 2026-04-29 14:29:22
โ—‹A2606:4700:3031::6815:c192026-04-23 โ†’ 2026-04-23 ยท 3 obs
โ— 2026-04-23 01:59:14
โ—‹ 2026-04-24 17:59:10
โ—‹ 2026-04-29 14:29:22
โ—‹A2606:4700:3037::ac43:97522026-04-23 โ†’ 2026-04-23 ยท 3 obs
โ— 2026-04-23 01:59:14
โ—‹ 2026-04-24 17:59:10
โ—‹ 2026-04-29 14:29:22

๐Ÿ” DNS Trace

๐Ÿ“‹ Delegation Chain

ZoneNameserversGlue
orgb2.org.afilias-nst.org, d0.org.afilias-nst.org, b0.org.afilias-nst.org-

โœ… Authoritative Response

Server:199.19.57.1

NS records: b2.org.afilias-nst.org, d0.org.afilias-nst.org, b0.org.afilias-nst.org

๐Ÿ”’ DNSSEC Status

๐Ÿ” Secure (DNSSEC validated)

Chain of trust verified from root to domain

โฑ๏ธ Timing

Total: 74ms | Queries: -

๐Ÿ“„ Records

TypeCountSample Data