compute.duolingo.com - robtex.com
compute.duolingo.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 23.22.119.55🇺🇸 Amazon23.22.0.0/15 EC2 IAD prefix | ||||||
| PTR | ec2-23-22-119-55.compute-1.amazonaws.com | ||||||
| A | 35.172.172.202🇺🇸 Amazon35.168.0.0/13 EC2 IAD prefix | ||||||
| A | 54.243.145.14🇺🇸 Amazon54.242.0.0/15 EC2 IAD prefix | ||||||
duolingo.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 23.22.119.55🇺🇸 Amazon23.22.0.0/15 EC2 IAD prefix | ||||||
| A | 35.172.172.202🇺🇸 Amazon35.168.0.0/13 EC2 IAD prefix | ||||||
| A | 54.243.145.14🇺🇸 Amazon54.242.0.0/15 EC2 IAD prefix | ||||||
| NS | ns-1020.awsdns-63.net ⭐ | ||||||
| NS | ns-1117.awsdns-11.org | ||||||
| NS | ns-1904.awsdns-46.co.uk | ||||||
| NS | ns-247.awsdns-30.com | ||||||
| MX | aspmx.l.google.com ⭐ | ||||||
| MX | alt1.aspmx.l.google.com(20) | ||||||
| MX | alt2.aspmx.l.google.com(20) | ||||||
| MX | aspmx2.googlemail.com(30) | ||||||
| MX | aspmx3.googlemail.com(30) | ||||||
| MX | aspmx4.googlemail.com(30) | ||||||
| MX | aspmx5.googlemail.com(30) | ||||||
| TXT | MS=ms66530579 | ||||||
| TXT | _vg2bua41v8x489g1y55hg3hr4h3qmj0 | ||||||
| TXT | aliyun-site-verification=1acfc148-50be-45c8-a021-3c933fc8eff9 | ||||||
| TXT | amazonses:+SIz2NZPqYri3C+PSIyKShZIbuI4rNpbLlES7lmvpu4= | ||||||
| TXT | anthropic-domain-verification-z4335b=YssTBALPY7K784Sri4FjVHjd3 | ||||||
| TXT | apple-domain-verification=bMPI889zOgALUenN | ||||||
| TXT | atlassian-sending-domain-verification=423a5faf-1cfa-4704-a38a-f7adae302dd6 | ||||||
| TXT | docker-verification=b4ead4c5-fd66-42a5-a684-8f2e7f4c1417 | ||||||
| TXT | e622flctk14s3cs3ccdauh8uth | ||||||
| TXT | google-site-verification=975UaH3lkKONB88HjWDDg34p8cdCqyTVSq_KGBAXrmU | ||||||
| TXT | h1-domain-verification=sjPBeaGqQwEe8YhJ3W8JVNJa7WDQFAzc6AHkURoErkh324Yy | ||||||
| TXT | jetbrains-domain-verification=bt8q7duih10l9pmf5fo5yy8wf | ||||||
| TXT | klaviyo-site-verification=RKdcF3 | ||||||
| TXT | klaviyo-site-verification=TGmZS7 | ||||||
| TXT | openai-domain-verification=dv-A4cFxdrYIEodfG6UiQU0qxnT | ||||||
| TXT | openai-domain-verification=dv-ieCpefZUqvVQwb8f7o4SlFye | ||||||
| TXT | pardot_208162_*=610bfb45f202232a79db94c298b30d14332a62a6894e695b025fa7949d7b03fa | ||||||
| TXT | pardot_208162_*=c15d5cb1b9f31e26058e1f30bda9e5d65c57cfeea37b34af8e1dd88474460e90 | ||||||
| TXT | rippling-domain-verification=9692f0635321f04d | ||||||
| TXT | slack-domain-verification=iuNWYimCCkEpnistAJvWc4YOZF8izoZ23TCDek0I | ||||||
| TXT | spacelift-domain-verification=519xtPXm | ||||||
| TXT | v=spf1 ip4:100.25.59.11 ip4:205.201.128.0/20 ip4:198.2.128.0/18 ip4:148.105.8... | ||||||
| SOA | ns-1020.awsdns-63.netawsdns-hostmaster@amazon.com serial=1 | ||||||
rank #1117 globally
rank #620 in the tld
WOT: SAFE (94/100)
📈 Tranco rank: #453
Duolingo is the world's most popular language learning platform, founded in 2011 by Luis von Ahn and Severin Hacker. With over 500 million registered users, Duolingo has made language learning accessible through gamification. The company went public in 2021.
The platform offers courses in over 40 languages through a game-like interface with lessons, streaks, and leaderboards. Duolingo has expanded into Duolingo English Test and Duolingo Math.
Duolingo's infrastructure handles millions of daily lessons with sophisticated adaptive learning algorithms and extensive A/B testing.
DNS for duolingo.com uses Amazon Route 53 with global distribution. The platform's mobile apps and web interface are optimized for diverse network conditions.
Same first word
Similar names
tepucom.com |
opectum.com |
opectum.de |
coeptum.com |
opectum.biz |
tepucom.net |
opectum.org |
optumce.com |
metocup.com |
coeptum.cl |
upcomet.com |
tepucom.nl |
tepucom.eu |
DNS History
56 records (3 active, 53 former)
○A100.29.244.542026-02-24 → 2026-02-27 · 5 obs
○ 2026-02-24 09:12:44
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○A100.30.104.1332026-02-22 → 2026-02-22 · 4 obs
○ 2026-02-20 06:09:02
● 2026-02-22 00:42:14
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○A100.48.169.442026-02-14 → 2026-02-16 · 4 obs
● 2026-02-14 21:57:34
● 2026-02-16 02:56:46
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○A100.49.72.32026-02-20 → 2026-02-20 · 4 obs
○ 2026-02-18 03:55:06
● 2026-02-20 06:09:02
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○A107.20.167.902026-02-24 → 2026-02-24 · 4 obs
○ 2026-02-24 09:12:44
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○ 2026-02-24 21:14:16
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○A107.21.248.1752026-02-14 → 2026-02-16 · 4 obs
● 2026-02-14 21:57:34
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○A174.129.37.242026-03-04 → 2026-03-05 · 5 obs
○ 2026-03-03 19:44:48
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● 2026-03-05 11:18:36
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○A18.208.119.1942026-03-14 → 2026-03-17 · 5 obs
○ 2026-03-14 22:18:44
● 2026-03-14 23:12:02
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○A18.213.96.2252026-02-28 → 2026-03-03 · 5 obs
○ 2026-02-27 03:28:38
● 2026-02-28 09:35:30
● 2026-03-03 19:44:48
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○A18.235.253.1372026-03-14 → 2026-03-14 · 4 obs
○ 2026-03-14 13:06:24
● 2026-03-14 22:18:44
○ 2026-03-14 23:12:02
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○A184.72.253.1192026-03-06 → 2026-03-06 · 5 obs
○ 2026-03-05 11:18:36
● 2026-03-06 03:48:58
● 2026-03-06 10:15:46
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○A23.20.99.2162026-03-06 → 2026-03-06 · 5 obs
○ 2026-03-05 11:18:36
● 2026-03-06 03:48:58
● 2026-03-06 10:15:46
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○ 2026-03-27 12:30:44
●A23.22.119.552026-03-21 → 2026-03-27 · 3 obs
○ 2026-03-17 17:11:52
● 2026-03-21 00:26:04
● 2026-03-27 12:30:44
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○A3.208.236.2262026-02-17 → 2026-02-18 · 5 obs
○ 2026-02-16 02:56:46
● 2026-02-17 16:39:14
● 2026-02-18 03:55:06
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○A3.209.142.792026-03-03 → 2026-03-03 · 4 obs
○ 2026-03-03 02:55:34
● 2026-03-03 19:44:48
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○A3.216.37.2262026-02-22 → 2026-02-22 · 4 obs
○ 2026-02-20 06:09:02
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○A3.221.97.2032026-03-16 → 2026-03-21 · 9 obs
○ 2026-03-16 00:55:28
● 2026-03-16 08:43:28
● 2026-03-16 16:11:42
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● 2026-03-21 00:26:04
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○ 2026-03-27 12:30:44
○A34.192.28.712026-03-08 → 2026-03-09 · 5 obs
○ 2026-03-06 10:15:46
● 2026-03-08 21:36:34
● 2026-03-09 03:53:52
○ 2026-03-09 19:17:18
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○ 2026-03-09 19:17:18
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○A34.193.4.1452026-03-25 → 2026-03-25 · 4 obs
○ 2026-03-24 17:24:44
● 2026-03-25 01:59:28
○ 2026-03-25 14:04:36
○ 2026-03-27 12:30:44
● 2026-03-25 01:59:28
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○ 2026-03-27 12:30:44
○A34.197.186.2352026-03-09 → 2026-03-10 · 5 obs
○ 2026-03-09 03:53:52
● 2026-03-09 19:17:18
● 2026-03-10 05:32:36
○ 2026-03-10 09:32:56
○ 2026-03-27 12:30:44
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○ 2026-03-27 12:30:44
○A34.199.217.1782026-03-08 → 2026-03-12 · 5 obs
○ 2026-03-06 10:15:46
● 2026-03-08 21:36:34
● 2026-03-12 18:22:16
○ 2026-03-14 01:15:32
○ 2026-03-27 12:30:44
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○ 2026-03-14 01:15:32
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○A34.207.46.2102026-02-24 → 2026-02-24 · 4 obs
○ 2026-02-23 09:52:50
● 2026-02-24 09:12:44
○ 2026-02-24 19:57:58
○ 2026-03-27 12:30:44
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○A34.230.251.2552026-03-14 → 2026-03-14 · 5 obs
○ 2026-03-12 18:22:16
● 2026-03-14 01:15:32
● 2026-03-14 22:18:44
○ 2026-03-14 23:12:02
○ 2026-03-27 12:30:44
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○A34.234.44.1242026-03-05 → 2026-03-05 · 4 obs
○ 2026-03-04 23:54:32
● 2026-03-05 11:18:36
○ 2026-03-06 03:48:58
○ 2026-03-27 12:30:44
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○A34.237.159.812026-02-14 → 2026-03-27 · 2 obs
○ 2026-02-14 21:57:34
○ 2026-03-27 12:30:44
○ 2026-03-27 12:30:44
●A35.172.172.2022026-03-27 → 2026-03-27 · 3 obs
○ 2026-03-26 06:56:12
● 2026-03-27 02:27:20
● 2026-03-27 12:30:44
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○A44.198.221.522026-02-22 → 2026-02-23 · 5 obs
○ 2026-02-20 06:09:02
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● 2026-02-23 09:52:50
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○A44.208.78.1912026-02-24 → 2026-02-26 · 5 obs
○ 2026-02-24 09:12:44
● 2026-02-24 19:57:58
● 2026-02-26 11:09:54
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○A44.215.37.1642026-02-24 → 2026-02-24 · 4 obs
○ 2026-02-23 09:52:50
● 2026-02-24 09:12:44
○ 2026-02-24 19:57:58
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○A44.219.45.102026-03-16 → 2026-03-21 · 5 obs
○ 2026-03-15 12:57:54
● 2026-03-16 00:55:28
● 2026-03-21 00:26:04
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○A50.16.239.2232026-02-22 → 2026-02-23 · 5 obs
○ 2026-02-20 06:09:02
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● 2026-02-23 09:52:50
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○A52.1.2.592026-03-04 → 2026-03-05 · 5 obs
○ 2026-03-03 19:44:48
● 2026-03-04 23:54:32
● 2026-03-05 11:18:36
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○A52.204.230.82026-02-17 → 2026-02-18 · 5 obs
○ 2026-02-16 02:56:46
● 2026-02-17 16:39:14
● 2026-02-18 03:55:06
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○A52.22.249.1022026-02-24 → 2026-02-26 · 5 obs
○ 2026-02-24 09:12:44
● 2026-02-24 19:57:58
● 2026-02-26 11:09:54
○ 2026-02-26 23:00:16
○ 2026-03-27 12:30:44
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● 2026-02-26 11:09:54
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○ 2026-03-27 12:30:44
○A52.3.197.92026-03-08 → 2026-03-11 · 5 obs
○ 2026-03-06 10:15:46
● 2026-03-08 21:36:34
● 2026-03-11 04:58:54
○ 2026-03-12 04:56:16
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○A52.4.205.1782026-02-26 → 2026-03-03 · 7 obs
○ 2026-02-26 11:09:54
● 2026-02-26 23:00:16
● 2026-03-02 16:14:36
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○A52.45.171.1462026-03-25 → 2026-03-26 · 5 obs
○ 2026-03-25 15:43:22
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○A52.5.179.2292026-02-26 → 2026-02-26 · 4 obs
○ 2026-02-26 11:09:54
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○A52.54.221.2242026-02-23 → 2026-02-23 · 4 obs
○ 2026-02-22 00:42:14
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○A52.70.243.682026-03-10 → 2026-03-14 · 5 obs
○ 2026-03-10 05:32:36
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○A52.71.199.2382026-02-20 → 2026-02-20 · 4 obs
○ 2026-02-18 03:55:06
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○A52.91.116.1122026-03-24 → 2026-03-24 · 5 obs
○ 2026-03-24 03:32:32
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○A54.152.92.742026-03-14 → 2026-03-23 · 5 obs
○ 2026-03-14 22:18:44
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○ 2026-03-27 12:30:44
○A54.162.178.2532026-02-14 → 2026-03-27 · 2 obs
○ 2026-02-14 21:57:34
○ 2026-03-27 12:30:44
○ 2026-03-27 12:30:44
○A54.166.202.952026-03-25 → 2026-03-25 · 5 obs
○ 2026-03-24 17:24:44
● 2026-03-25 01:59:28
● 2026-03-25 15:43:22
○ 2026-03-25 22:03:36
○ 2026-03-27 12:30:44
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○ 2026-03-27 12:30:44
○A54.172.165.72026-02-17 → 2026-02-18 · 5 obs
○ 2026-02-16 02:56:46
● 2026-02-17 16:39:14
● 2026-02-18 03:55:06
○ 2026-02-20 06:09:02
○ 2026-03-27 12:30:44
● 2026-02-17 16:39:14
● 2026-02-18 03:55:06
○ 2026-02-20 06:09:02
○ 2026-03-27 12:30:44
○A54.172.179.2452026-03-09 → 2026-03-09 · 4 obs
○ 2026-03-09 03:53:52
● 2026-03-09 19:17:18
○ 2026-03-10 03:38:08
○ 2026-03-27 12:30:44
● 2026-03-09 19:17:18
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○A54.174.29.882026-03-14 → 2026-03-15 · 5 obs
○ 2026-03-14 22:18:44
● 2026-03-14 23:12:02
● 2026-03-15 12:57:54
○ 2026-03-16 00:55:28
○ 2026-03-27 12:30:44
● 2026-03-14 23:12:02
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○ 2026-03-16 00:55:28
○ 2026-03-27 12:30:44
○A54.204.235.252026-03-12 → 2026-03-14 · 5 obs
○ 2026-03-11 04:58:54
● 2026-03-12 04:56:16
● 2026-03-14 13:06:24
○ 2026-03-14 22:18:44
○ 2026-03-27 12:30:44
● 2026-03-12 04:56:16
● 2026-03-14 13:06:24
○ 2026-03-14 22:18:44
○ 2026-03-27 12:30:44
○A54.209.23.1422026-03-03 → 2026-03-03 · 4 obs
○ 2026-03-02 16:14:36
● 2026-03-03 02:55:34
○ 2026-03-03 19:44:48
○ 2026-03-27 12:30:44
● 2026-03-03 02:55:34
○ 2026-03-03 19:44:48
○ 2026-03-27 12:30:44
○A54.211.43.942026-03-06 → 2026-03-06 · 5 obs
○ 2026-03-05 11:18:36
● 2026-03-06 03:48:58
● 2026-03-06 10:15:46
○ 2026-03-08 21:36:34
○ 2026-03-27 12:30:44
● 2026-03-06 03:48:58
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○ 2026-03-08 21:36:34
○ 2026-03-27 12:30:44
●A54.243.145.142026-03-23 → 2026-03-27 · 3 obs
○ 2026-03-22 14:41:46
● 2026-03-23 04:14:32
● 2026-03-27 12:30:44
● 2026-03-23 04:14:32
● 2026-03-27 12:30:44
○A54.80.134.2182026-02-26 → 2026-03-02 · 5 obs
○ 2026-02-26 11:09:54
● 2026-02-26 23:00:16
● 2026-03-02 16:14:36
○ 2026-03-03 02:55:34
○ 2026-03-27 12:30:44
● 2026-02-26 23:00:16
● 2026-03-02 16:14:36
○ 2026-03-03 02:55:34
○ 2026-03-27 12:30:44
○A54.81.127.932026-02-20 → 2026-02-20 · 4 obs
○ 2026-02-18 03:55:06
● 2026-02-20 06:09:02
○ 2026-02-22 00:42:14
○ 2026-03-27 12:30:44
● 2026-02-20 06:09:02
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○A54.92.254.1672026-03-24 → 2026-03-24 · 4 obs
○ 2026-03-23 14:06:40
● 2026-03-24 03:32:32
○ 2026-03-24 11:56:44
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● 2026-03-24 03:32:32
○ 2026-03-24 11:56:44
○ 2026-03-27 12:30:44
○A98.95.57.662026-02-14 → 2026-02-16 · 4 obs
● 2026-02-14 21:57:34
● 2026-02-16 02:56:46
○ 2026-02-17 16:39:14
○ 2026-03-27 12:30:44
● 2026-02-16 02:56:46
○ 2026-02-17 16:39:14
○ 2026-03-27 12:30:44
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | e.gtld-servers.net, l.gtld-servers.net, d.gtld-servers.net, h.gtld-servers.net... | - |
| duolingo.com | ns-247.awsdns-30.com, ns-1020.awsdns-63.net, ns-1117.awsdns-11.org, ns-1904.awsdns-46.co.uk | 1 record |
✅ Authoritative Response
Server:205.251.195.252
NS records: ns-247.awsdns-30.com, ns-1020.awsdns-63.net, ns-1117.awsdns-11.org, ns-1904.awsdns-46.co.uk
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for duolingo.com (unsigned zone)
⏱️ Timing
Total: 221ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 3 | 54.243.145.14, 35.172.172.202... |
📌 Glue Records Collected
Total: 1
Out-of-bailiwick: 1 (ns-247.awsdns-30.com)
Analysis
IP Addresses
compute.duolingo.com resolves to three IP numbers: 23.22.119.55, 35.172.172.202 and 54.243.145.14.
Other host names, for instance ssl.duolingo.com, wg.spotify.comssl.google-analytics.comssl.gstatic.comstatic.duolingo.com, www.schools.duolingo.com, comssl.google-analytics.comssl.gstatic.comstatic.duolingo.com and social.duolingo.com share IP numbers with compute.duolingo.com.