serlo.org - robtex.com
serlo.org
org
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a0.org.afilias-nst.info ⭐ ⚠️ Not in parent delegation | ||||||
| NS | a2.org.afilias-nst.info ⚠️ Not in parent delegation | ||||||
| NS | b0.org.afilias-nst.org | ||||||
| NS | b2.org.afilias-nst.org | ||||||
| NS | c0.org.afilias-nst.info ⚠️ Not in parent delegation | ||||||
| NS | d0.org.afilias-nst.org | ||||||
| SOA | a0.org.afilias-nst.infohostmaster@donuts.email serial=1771291736 | ||||||
rank #10886 in the tld
WOT: SAFE (78/100)
📈 Tranco rank: #237,461
Up
sa.serlo.org |
Same first word
Similar names
DNS History
24 records (11 active, 13 former)
●NSkara.ns.cloudflare.com2015-07-06 → 2026-02-21 · 2 obs
● 2026-02-21 17:11:56
●NSnorm.ns.cloudflare.com2015-07-06 → 2026-02-21 · 2 obs
● 2026-02-21 17:11:56
●MXalt1.aspmx.l.google.com2015-11-17 → 2026-02-21 · 3 obs
● 2015-11-17 21:45:38
● 2026-02-21 17:11:56
●MXalt2.aspmx.l.google.com2015-11-17 → 2026-02-21 · 3 obs
● 2015-11-17 21:45:38
● 2026-02-21 17:11:56
●MXalt3.aspmx.l.google.com2015-11-17 → 2026-02-21 · 3 obs
● 2015-11-17 21:45:38
● 2026-02-21 17:11:56
●MXalt4.aspmx.l.google.com2015-11-17 → 2026-02-21 · 3 obs
● 2015-11-17 21:45:38
● 2026-02-21 17:11:56
●MXaspmx.l.google.com2015-11-17 → 2026-02-21 · 3 obs
● 2015-11-17 21:45:38
● 2026-02-21 17:11:56
○MXmail.serlo.org2015-07-06 → 2015-07-06 · 3 obs
○ 2015-11-17 21:45:38
○ 2026-02-21 17:11:56
●A104.21.91.492026-02-21 → 2026-02-21 · 3 obs
● 2026-02-21 04:42:48
● 2026-02-21 17:11:56
○A104.24.22.862017-01-31 → 2017-02-16 · 5 obs
● 2017-01-31 22:50:12
● 2017-02-16 01:52:44
○ 2026-02-21 04:42:48
○ 2026-02-21 17:11:56
○A104.24.23.862017-01-31 → 2017-02-16 · 5 obs
● 2017-01-31 22:50:12
● 2017-02-16 01:52:44
○ 2026-02-21 04:42:48
○ 2026-02-21 17:11:56
○A104.25.12.102015-11-17 → 2016-04-25 · 5 obs
● 2015-11-17 21:45:38
● 2016-04-25 07:11:30
○ 2017-01-31 22:50:12
○ 2026-02-21 17:11:56
○A104.25.13.102015-11-17 → 2016-04-25 · 5 obs
● 2015-11-17 21:45:38
● 2016-04-25 07:11:30
○ 2017-01-31 22:50:12
○ 2026-02-21 17:11:56
○A162.159.246.1862015-07-06 → 2015-07-06 · 3 obs
○ 2015-11-17 21:45:38
○ 2026-02-21 17:11:56
○A162.159.247.1862015-07-06 → 2015-07-06 · 3 obs
○ 2015-11-17 21:45:38
○ 2026-02-21 17:11:56
●A172.67.166.1882026-02-21 → 2026-02-21 · 3 obs
● 2026-02-21 04:42:48
● 2026-02-21 17:11:56
○A2400:cb00:2048:1::6818:16562017-01-31 → 2017-02-16 · 5 obs
● 2017-01-31 22:50:12
● 2017-02-16 01:52:44
○ 2026-02-21 04:42:48
○ 2026-02-21 17:11:56
○A2400:cb00:2048:1::6818:17562017-01-31 → 2017-02-16 · 5 obs
● 2017-01-31 22:50:12
● 2017-02-16 01:52:44
○ 2026-02-21 04:42:48
○ 2026-02-21 17:11:56
○A2400:cb00:2048:1::6819:c0a2015-11-17 → 2016-04-25 · 5 obs
● 2015-11-17 21:45:38
● 2016-04-25 07:11:30
○ 2017-01-31 22:50:12
○ 2026-02-21 17:11:56
○A2400:cb00:2048:1::6819:d0a2015-11-17 → 2016-04-25 · 5 obs
● 2015-11-17 21:45:38
● 2016-04-25 07:11:30
○ 2017-01-31 22:50:12
○ 2026-02-21 17:11:56
○A2400:cb00:2048:1::a29f:f6ba2015-07-06 → 2015-07-06 · 3 obs
○ 2015-11-17 21:45:38
○ 2026-02-21 17:11:56
○A2400:cb00:2048:1::a29f:f7ba2015-07-06 → 2015-07-06 · 3 obs
○ 2015-11-17 21:45:38
○ 2026-02-21 17:11:56
●A2606:4700:3035::6815:5b312026-02-21 → 2026-02-21 · 3 obs
● 2026-02-21 04:42:48
● 2026-02-21 17:11:56
●A2606:4700:3036::ac43:a6bc2026-02-21 → 2026-02-21 · 3 obs
● 2026-02-21 04:42:48
● 2026-02-21 17:11:56
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| org | d0.org.afilias-nst.org, b0.org.afilias-nst.org, b2.org.afilias-nst.org | - |
| serlo.org | kara.ns.cloudflare.com, norm.ns.cloudflare.com | - |
✅ Authoritative Response
Server: 108.162.193.134
NS records: kara.ns.cloudflare.com, norm.ns.cloudflare.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for serlo.org (unsigned zone)
⏱️ Timing
Total: 440ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 104.21.91.49, 172.67.166.188 |
| AAAA | 2 | 2606:4700:3035::6815:5b31, 2606:4700:3036::ac43:a6bc |
| NS | 2 | kara.ns.cloudflare.com, norm.ns.cloudflare.com |
| MX | 5 | aspmx.l.google.com (pri: 1), alt3.aspmx.l.google.com (pri: 10)... |
| TXT | 7 | botify-site-verification=yc3JK6UncoE2KeU, brave-ledger-verification=2535f476d94d87... |
| HTTPS | 1 | {"priority":1,"target":".","alpn":["h3", |
| SOA | 1 | kara.ns.cloudflare.com dns.cloudflare.co |
AI analysis
The parent of sa.serlo.org is serlo.org.
serlo.org points to four IP numbers: 2606:4700:3035::6815:5b31, 2606:4700:3036::ac43:a6bc, 104.21.91.49 and 172.67.166.188.
Other host names, for instance sun-childcare.com, mirbega.ru, www.btfarm.com, affiliates.findlust.com and cpw886.cn share IP numbers with serlo.org.
serlo.org is delegated to two name servers: kara.ns.cloudflare.com and norm.ns.cloudflare.com.
serlo.org uses the same name server setup as other domains, for instance darylthetford.com, ecochurch.org, absolutehacks.com, eproxy.email and tln.ca.
serlo.org shares name servers with other domains at least partially, for instance shutiaou2y.xyz, airfryingfoodie.com, sedberghschool.info, imagenes-temporales.com and toadhut.com.
these name servers are often used together with the name servers chad.ns.cloudflare.com.
Host names with six IP numbers: kara.ns.cloudflare.com points to 2606:4700:50::adf5:3a7b, 2803:f800:50::6ca2:c07b, 2a06:98c1:50::ac40:207b, 108.162.192.123, 172.64.32.123 and 173.245.58.123; norm.ns.cloudflare.com points to 2606:4700:58::adf5:3b86, 2803:f800:50::6ca2:c186, 2a06:98c1:50::ac40:2186, 108.162.193.134, 172.64.33.134 and 173.245.59.134.
serlo.org is handled by five mail servers: aspmx.l.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com, alt3.aspmx.l.google.com and alt4.aspmx.l.google.com.
serlo.org shares some mail servers with other domains, including filf.com, at-retech.com, ns500671.ns500671.ns500731.ns500731.ns500731.ns500671.ns500742.ns500705.ns500671.ns500704.ns500678.ns500688.ns500678.ns500142.lustyslutz.com, ns500671.ns500731.ns500742.ns500754.ns500671.ns500731.ns500742.ns500731.ns500671.ns500688.ns500291.ns500291.ns500671.ns500291.ns500153.tenderladiesbz.com and ns500693.ns500699.ns500693.ns500693.ns500699.ns500699.ns500728.ns500588.ns500588.ns500699.ns500588.ns500693.ns500588.ns500632.ns500588.ns500588.ns500588.dtrkdll.com.
these mail servers are commonly used with aspmx2.googlemail.com, aspmx3.googlemail.com, aspmx4.googlemail.com and aspmx5.googlemail.com.
Host names with two IP numbers:
aspmx.l.google.com points to 2607:f8b0:4004:c19::1b and 172.253.62.27.
alt1.aspmx.l.google.com points to 2607:f8b0:4003:c30::1b and 74.125.27.26.
alt2.aspmx.l.google.com points to 2607:f8b0:4001:c70::1a and 192.178.209.26.
alt3.aspmx.l.google.com points to 2607:f8b0:4024:c0d::1b and 192.178.152.26.
alt4.aspmx.l.google.com points to 2607:f8b0:4023:403::1a and 142.250.96.27.