www.doubtnut.com - robtex.com

www.doubtnut.com

CNAMEd1bwwumizb0ypj.cloudfront.net
DNSSEC⚠️ Not signed
A2600:9000:200b:2000:a:e969:adc0:93a1🇺🇸 Amazon2600:9000:200b::/48 - CloudFront
A2600:9000:200b:3400:a:e969:adc0:93a1🇺🇸 Amazon2600:9000:200b::/48 - CloudFront
A2600:9000:200b:4200:a:e969:adc0:93a1🇺🇸 Amazon2600:9000:200b::/48 - CloudFront
A2600:9000:200b:6400:a:e969:adc0:93a1🇺🇸 Amazon2600:9000:200b::/48 - CloudFront
A2600:9000:200b:7600:a:e969:adc0:93a1🇺🇸 Amazon2600:9000:200b::/48 - CloudFront
A2600:9000:200b:8400:a:e969:adc0:93a1🇺🇸 Amazon2600:9000:200b::/48 - CloudFront
A2600:9000:200b:a600:a:e969:adc0:93a1🇺🇸 Amazon2600:9000:200b::/48 - CloudFront
A2600:9000:200b:f800:a:e969:adc0:93a1🇺🇸 Amazon2600:9000:200b::/48 - CloudFront
A13.33.109.45🇺🇸 Amazon13.33.109.0/24 - Cloudfront
A13.33.109.77🇺🇸 Amazon13.33.109.0/24 - Cloudfront
A13.33.109.86🇺🇸 Amazon13.33.109.0/24 - Cloudfront
A13.33.109.111🇺🇸 Amazon13.33.109.0/24 - Cloudfront
NSns-381.awsdns-47.com ⭐
A2600:9000:5301:7d00::1🇺🇸 Amazon2600:9000:5301::/48 - CloudFront
PTRns-381.awsdns-47.com
A205.251.193.125🇺🇸 Amazon205.251.193.0/24 prefix
PTRns-381.awsdns-47.com
NSns-1299.awsdns-34.org
A2600:9000:5305:1300::1🇺🇸 Amazon2600:9000:5305::/48 - CloudFront
PTRns-1299.awsdns-34.org
A205.251.197.19🇺🇸 Amazon205.251.197.0/24 prefix
PTRns-1299.awsdns-34.org
NSns-1794.awsdns-32.co.uk
A2600:9000:5307:200::1🇺🇸 Amazon2600:9000:5307::/48 - CloudFront
PTRns-1794.awsdns-32.co.uk
A205.251.199.2🇺🇸 Amazon205.251.199.0/24 prefix
PTRns-1794.awsdns-32.co.uk
NSns-667.awsdns-19.net
A2600:9000:5302:9b00::1🇺🇸 Amazon2600:9000:5302::/48 - CloudFront
PTRns-667.awsdns-19.net
A205.251.194.155🇺🇸 Amazon205.251.194.0/24 prefix
PTRns-667.awsdns-19.net
HTTPSHTTP/2
SOAns-381.awsdns-47.comawsdns-hostmaster@amazon.com serial=1

doubtnut.com

DNSSEC⚠️ Not signed
A2600:9000:28ac:1000:a:e969:adc0:93a1🇺🇸 Amazon2600:9000:28ac::/48
A2600:9000:28ac:1c00:a:e969:adc0:93a1🇺🇸 Amazon2600:9000:28ac::/48
A2600:9000:28ac:6600:a:e969:adc0:93a1🇺🇸 Amazon2600:9000:28ac::/48
A2600:9000:28ac:9000:a:e969:adc0:93a1🇺🇸 Amazon2600:9000:28ac::/48
A2600:9000:28ac:a400:a:e969:adc0:93a1🇺🇸 Amazon2600:9000:28ac::/48
A2600:9000:28ac:aa00:a:e969:adc0:93a1🇺🇸 Amazon2600:9000:28ac::/48
A2600:9000:28ac:c800:a:e969:adc0:93a1🇺🇸 Amazon2600:9000:28ac::/48
A2600:9000:28ac:d600:a:e969:adc0:93a1🇺🇸 Amazon2600:9000:28ac::/48
A3.171.100.7🇺🇸 Amazon3.171.100.0/22
A3.171.100.79🇺🇸 Amazon3.171.100.0/22
A3.171.100.80🇺🇸 Amazon3.171.100.0/22
A3.171.100.118🇺🇸 Amazon3.171.100.0/22
NSaragorn.ns.cloudflare.com ⭐
NSsofia.ns.cloudflare.com
MXaspmx.l.google.com ⭐
MXalt1.aspmx.l.google.com(5)
MXalt2.aspmx.l.google.com(5)
MXalt3.aspmx.l.google.com(10)
MXalt4.aspmx.l.google.com(10)
TXT0ds7p7mt6yqrp3l4j2881h07zbsj0fg0
TXT7y1rsvmf18czvpjgvd8yk0lwpdd3rmsv
TXTMS=D729FD0AAEB4A1EE9A896C6C37C6BE7977E42C1A
TXTMS=ms78677555
TXTZOOM_verify_jSAxRRJsgukJ4Egf5WTKxY
TXTapple-domain-verification=0Qsb9GYfhdJTdUID
TXTgoogle-site-verification=F-zMyRd41JTAiXmA2aoLMo_W5fzzB_K_g9-VNdDgRFo
TXTgoogle-site-verification=UyrtJmiYj7jwefjrAnYcCSAdYkS_Kd0Ip18zohmKZbU
TXTgoogle-site-verification=Z1G4WmAcLSkB7fRArO0ac4ythhVzeLki_yWWqSbpF4s
TXTgoogle-site-verification=h6tuleckDq-b9gJUrSvVdczIlSv5AUUsMxrO2MedK2g
TXTh71h4v8ffv6pfqwgjz37n56c99z3t3s9
TXTl3g7g1nt8vg9998r3145yqxwjj3vjgfj
TXTnz64xzxk62svxw9b15pttb9x1915kyg4
TXTt7ksbq8g5w6svqtn2fv5f3723zkv0g0h
TXTv=spf1 include:_spf.google.com ~all
HTTPSHTTP/2
SOAaragorn.ns.cloudflare.comdns@cloudflare.com serial=2403636780
rank #179909 globally
rank #71365 in the tld
📈 Tranco rank: #165,774

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DNS History

7 records (1 active, 6 former)

201820192020202120222023202420252026A104.28.26.209104.28.27.2092400:cb00:2048:1::681c:1ad12400:cb00:2048:1::681c:1bd1CNAMEd1bwwumizb0ypj.cloudfront.netdoubtnut.comwww.doubtnut.com.cdn.cloudflare.net
○A104.28.26.2092017-04-02 → 2017-04-02 · 3 obs
● 2017-04-02 02:45:34
○ 2020-03-16 16:21:18
○ 2026-05-08 21:50:56
○A104.28.27.2092017-04-02 → 2017-04-02 · 3 obs
● 2017-04-02 02:45:34
○ 2020-03-16 16:21:18
○ 2026-05-08 21:50:56
○A2400:cb00:2048:1::681c:1ad12017-04-02 → 2017-04-02 · 3 obs
● 2017-04-02 02:45:34
○ 2020-03-16 16:21:18
○ 2026-05-08 21:50:56
○A2400:cb00:2048:1::681c:1bd12017-04-02 → 2017-04-02 · 3 obs
● 2017-04-02 02:45:34
○ 2020-03-16 16:21:18
○ 2026-05-08 21:50:56
●CNAMEd1bwwumizb0ypj.cloudfront.net2026-04-03 → 2026-05-08 · 3 obs
○ 2020-03-16 16:21:18
● 2026-04-03 06:41:34
● 2026-05-08 21:50:56
○CNAMEdoubtnut.com2020-03-16 → 2020-03-16 · 4 obs
○ 2017-04-02 02:45:34
● 2020-03-16 16:21:18
○ 2026-04-03 06:41:34
○ 2026-05-08 21:50:56
○CNAMEwww.doubtnut.com.cdn.cloudflare.net2017-04-02 → 2017-04-02 · 3 obs
● 2017-04-02 02:45:34
○ 2020-03-16 16:21:18
○ 2026-05-08 21:50:56

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
comf.gtld-servers.net, g.gtld-servers.net, h.gtld-servers.net, i.gtld-servers.net...-
doubtnut.comsofia.ns.cloudflare.com, aragorn.ns.cloudflare.com12 records

✅ Authoritative Response

Server:108.162.192.223

NS records: sofia.ns.cloudflare.com, aragorn.ns.cloudflare.com

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 175ms | Queries: -

📄 Records

TypeCountSample Data
CNAME1d1bwwumizb0ypj.cloudfront.net

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

www.doubtnut.com lists twelve IP numbers: 2600:9000:200b:2000:a:e969:adc0:93a1, 2600:9000:200b:3400:a:e969:adc0:93a1, 2600:9000:200b:4200:a:e969:adc0:93a1, 2600:9000:200b:6400:a:e969:adc0:93a1, 2600:9000:200b:7600:a:e969:adc0:93a1, 2600:9000:200b:8400:a:e969:adc0:93a1, 2600:9000:200b:a600:a:e969:adc0:93a1, 2600:9000:200b:f800:a:e969:adc0:93a1, 13.33.109.45, 13.33.109.77, 13.33.109.86 and 13.33.109.111.

Name Servers

www.doubtnut.com is delegated to four name servers: ns-381.awsdns-47.com, ns-667.awsdns-19.net, ns-1299.awsdns-34.org and ns-1794.awsdns-32.co.uk.

At least part of the name servers for www.doubtnut.com are shared with other domains, for instance dm62uysn32ppt.cloudfront.net, expenseasap.com, holdenbags.com, rapunzelglimmerrgh.com and osttra.net.

Host names with two IP numbers:

ns-381.awsdns-47.com points to: 2600:9000:5301:7d00::1 and 205.251.193.125

ns-667.awsdns-19.net points to: 2600:9000:5302:9b00::1 and 205.251.194.155

ns-1299.awsdns-34.org points to: 2600:9000:5305:1300::1 and 205.251.197.19

ns-1794.awsdns-32.co.uk points to: 2600:9000:5307:200::1 and 205.251.199.2