instagram.courses - robtex.com

instagram.courses

DNSSECโš ๏ธ Not signed
A2a03:2880:f003:c07:face:b00c:0:2๐Ÿ‡บ๐Ÿ‡ธ Facebook
PTRedge-star6-shv-01-iad3.facebook.com
A31.13.66.4๐Ÿ‡บ๐Ÿ‡ธ Facebook
NSa.ns.facebook.com โญ
A2a03:2880:f0fc:c:face:b00c:0:35๐Ÿ‡บ๐Ÿ‡ธ Facebook
PTRa.ns.facebook.com
A129.134.30.12๐Ÿ‡บ๐Ÿ‡ธ Facebook
PTRa.ns.facebook.com
NSb.ns.facebook.com
A2a03:2880:f0fd:c:face:b00c:0:35๐Ÿ‡บ๐Ÿ‡ธ Facebook
PTRb.ns.facebook.com
A129.134.31.12๐Ÿ‡บ๐Ÿ‡ธ Facebook
PTRb.ns.facebook.com
NSc.ns.facebook.com
A2a03:2880:f1fc:c:face:b00c:0:35๐Ÿ‡บ๐Ÿ‡ธ Facebook
PTRc.ns.facebook.com
A185.89.218.12๐Ÿ‡ฎ๐Ÿ‡ฑ Facebook
PTRc.ns.facebook.com
NSd.ns.facebook.com
A2a03:2880:f1fd:c:face:b00c:0:35๐Ÿ‡บ๐Ÿ‡ธ Facebook
PTRd.ns.facebook.com
A185.89.219.12๐Ÿ‡ฎ๐Ÿ‡ฑ Facebook
PTRd.ns.facebook.com
TXTv=spf1 -all
HTTPSHTTP/2, HTTP/3
HTTPSHTTP/2, HTTP/3
SOAa.ns.facebook.comdns@facebook.com serial=4207849484

courses

DNSSEC๐Ÿ”’ Signed (DS record present)
NSa.nic.courses โญ ๐Ÿ”’
NSb.nic.courses ๐Ÿ”’
NSc.nic.courses ๐Ÿ”’
NSx.nic.courses ๐Ÿ”’
NSy.nic.courses ๐Ÿ”’
NSz.nic.courses ๐Ÿ”’
SOAa.nic.coursesadmin@tldns.godaddy serial=1771504931

Same first word

Similar names

DNS History

8 records (6 active, 2 former)

NSa.ns.facebook.comb.ns.facebook.comc.ns.facebook.comd.ns.facebook.comA2a03:2880:f003:c07:face:b00c:0:231.13.66.4157.240.214.12a03:2880:f058:100:face:b00c:0:2
โ—NSa.ns.facebook.com2026-02-16 โ†’ 2026-02-19 ยท 2 obs
โ— 2026-02-16 13:25:30
โ— 2026-02-19 13:54:54
โ—NSb.ns.facebook.com2026-02-16 โ†’ 2026-02-19 ยท 2 obs
โ— 2026-02-16 13:25:30
โ— 2026-02-19 13:54:54
โ—NSc.ns.facebook.com2026-02-16 โ†’ 2026-02-19 ยท 2 obs
โ— 2026-02-16 13:25:30
โ— 2026-02-19 13:54:54
โ—NSd.ns.facebook.com2026-02-16 โ†’ 2026-02-19 ยท 2 obs
โ— 2026-02-16 13:25:30
โ— 2026-02-19 13:54:54
โ—‹A157.240.214.12026-02-16 โ†’ 2026-02-18 ยท 4 obs
โ— 2026-02-16 13:25:30
โ— 2026-02-18 23:29:16
โ—‹ 2026-02-19 13:54:50
โ—‹ 2026-02-19 13:54:54
โ—A2a03:2880:f003:c07:face:b00c:0:22026-02-19 โ†’ 2026-02-19 ยท 4 obs
โ—‹ 2026-02-16 13:25:30
โ—‹ 2026-02-18 23:29:16
โ— 2026-02-19 13:54:50
โ— 2026-02-19 13:54:54
โ—‹A2a03:2880:f058:100:face:b00c:0:22026-02-16 โ†’ 2026-02-18 ยท 4 obs
โ— 2026-02-16 13:25:30
โ— 2026-02-18 23:29:16
โ—‹ 2026-02-19 13:54:50
โ—‹ 2026-02-19 13:54:54
โ—A31.13.66.42026-02-19 โ†’ 2026-02-19 ยท 4 obs
โ—‹ 2026-02-16 13:25:30
โ—‹ 2026-02-18 23:29:16
โ— 2026-02-19 13:54:50
โ— 2026-02-19 13:54:54

๐Ÿ” DNS Trace

๐Ÿ“‹ Delegation Chain

ZoneNameserversGlue
coursesa.nic.courses, b.nic.courses, c.nic.courses, x.nic.courses...12 records
instagram.coursesa.ns.facebook.com, b.ns.facebook.com, c.ns.facebook.com, d.ns.facebook.com-

โœ… Authoritative Response

Server: 129.134.30.12

NS records: a.ns.facebook.com, b.ns.facebook.com, c.ns.facebook.com, d.ns.facebook.com

๐Ÿ”’ DNSSEC Status

โš ๏ธ Insecure (no DNSSEC)

No DS record for instagram.courses (unsigned zone)

โฑ๏ธ Timing

Total: 907ms | Queries: -

๐Ÿ“„ Records

TypeCountSample Data
A131.13.66.4
AAAA12a03:2880:f003:c07:face:b00c:0:2
NS4d.ns.facebook.com, c.ns.facebook.com...
TXT1v=spf1 -all
HTTPS2{"priority":2,"target":"star.fallback.c1, {"priority":1,"target":".","alpn":["h2",
SOA1a.ns.facebook.com dns.facebook.com

๐Ÿ“Œ Glue Records Collected

Total: 12

In-bailiwick: 12 (a.nic.courses, b.nic.courses, c.nic.courses...)

AI analysis

The entity instagram.courses points to two IP numbers: 2a03:2880:f003:c07:face:b00c:0:2 and 31.13.66.4.

For instance, other host names connect-facebook-mobile.com, facebook.wang, star-nohsts.c10r.facebook.com, achat-followers-instagram.com and facebook.gy share IP numbers with instagram.courses.

instagram.courses is delegated to four name servers: a.ns.facebook.com, b.ns.facebook.com, c.ns.facebook.com and d.ns.facebook.com.

instagram.courses shares name servers with other domains at least partially, for example instameets.co, iaaa.com, postff.com, boomeranginstagram.es and facecbooi.com.

Host names with two IP numbers:

a.ns.facebook.com points to: 2a03:2880:f0fc:c:face:b00c:0:35 and 129.134.30.12

b.ns.facebook.com points to: 2a03:2880:f0fd:c:face:b00c:0:35 and 129.134.31.12

c.ns.facebook.com points to: 2a03:2880:f1fc:c:face:b00c:0:35 and 185.89.218.12

d.ns.facebook.com points to: 2a03:2880:f1fd:c:face:b00c:0:35 and 185.89.219.12