learnku.com
Domain report: WHOIS, DNS, hosting, SSL and safety. Checked .
Online · 200SafeSSL: 33 days left10 years oldTranco #177764
65
learnku.com was registered on 1 Oct 2016 via Alibaba Cloud Computing (Beijing) Co., Ltd. and the registry expiry is 1 Oct 2027. WHOIS data came from RDAP at https://rdap.verisign.com/com/v1/domain/learnku.com.
learnku.com publishes 3 nameservers. DNSSEC is not signed.
learnku.com has 1 IPv4 address (117.50.42.115). The geolocation database places 117.50.42.115 in Yangpu (Yangpu Qu), China.
The TLS certificate from YR2 is valid and has 33 days left (TLS 1.3). The homepage answered HTTP 200.
Tech detection named Laravel, Nginx and PHP. The fingerprints ran on the homepage that was already downloaded.
No safety warning was recorded for learnku.com in the checks that ran.
Domain · RDAP/WHOIS
learnku.com was registered on 1 Oct 2016 via Alibaba Cloud Computing (Beijing) Co., Ltd.. The registry returned 1 status value and 2 nameservers from https://rdap.verisign.com/com/v1/domain/learnku.com.
| Registered | since 1 Oct 2016 |
|---|---|
| Created | 1 October 2016 |
| Updated | 19 February 2025 |
| Expires | 1 October 2027 |
| Registrar | Alibaba Cloud Computing (Beijing) Co., Ltd. |
| Status | active |
| Nameservers | dns7.hichina.com, dns8.hichina.com |
| DNSSEC | no |
| Source | https://rdap.verisign.com/com/v1/domain/learnku.com |
Nameserver dns7.hichina.com is published for learnku.com in the registration record from https://rdap.verisign.com/com/v1/domain/learnku.com.
Nameserver dns8.hichina.com is published for learnku.com in the registration record from https://rdap.verisign.com/com/v1/domain/learnku.com.
DNS
learnku.com has 1 address record, 2 mail exchangers and 3 nameservers, measured at 1.1.1.1:53.
| A | 117.50.42.115 |
|---|---|
| AAAA | — |
| NS | dns7.hichina.com, dns8.hichina.com, f1g1ns1.dnspod.net |
| MX | mxbiz1.qq.com (5), mxbiz2.qq.com (10) |
| SPF | absent |
| DMARC | absent |
| CAA | — |
| Wildcard | on |
| DNSSEC | not signed |
| Resolver | 1.1.1.1:53 |
IPv4 address 117.50.42.115 answers for learnku.com at resolver 1.1.1.1:53.
Mail exchanger mxbiz1.qq.com has preference 5.
Mail exchanger mxbiz2.qq.com has preference 10.
A random label under learnku.com also resolved, which means wildcard DNS is on.
Hosting and geo
learnku.com is placed in Yangpu (Yangpu Qu), China by the local geolocation database (db-ip).
| Address | 117.50.42.115 |
|---|---|
| Country | China |
| City | Yangpu (Yangpu Qu) |
| Source | db-ip |
SSL/TLS
The certificate for learnku.com is valid, with 33 days left and 1 subject alternative name. Source: tls:443.
| Issuer | YR2 |
|---|---|
| Subject | learnku.com |
| Valid from | 5 September 2026 |
| Valid until | 4 December 2026 |
| Days left | 33 |
| SAN count | 1 |
| Protocol | TLS 1.3 |
| Source | tls:443 |
Subject alternative names: learnku.com.
Tech stack
Tech detection checked the fetched homepage and named 3 products. Source: wappalyzergo.
- Laravel · Web frameworks
- Nginx · Web servers, Reverse proxies
- PHP · Programming languages
Laravel is filed under Web frameworks.
Nginx is filed under Web servers, Reverse proxies.
PHP is filed under Programming languages.
On-page checks
The homepage returned HTTP 200 in 700 ms. The target title is 18 characters and the page has 0 H1 headings.
| Status | 200 |
|---|---|
| TTFB | 700 ms |
| Title length | 18 yes |
| Quoted title | "LearnKu 终身编程者的知识社区" |
| Meta description | "专为终身学习者定制的编程知识社区" yes |
| H1 count | 0 |
| HSTS | no no |
| CSP | no |
| X-Frame-Options | — |
| Robots meta | — |
| Canonical | — |
| Language | zh |
| Links | 122 |
| Images | 89 |
| Favicon | yes |
The quoted title and meta description are measurements of the other site. They are not this page's title or description.
Security
Family DNS for learnku.com is clear, and URLhaus is clear. Source: family DNS and local lists.
| Family DNS | clear |
|---|---|
| URLhaus | clear |
| UT1 | — |
| Web Risk | not run |
| Source | family DNS and local lists |
| HSTS | no |
| CSP | no |
Google Web Risk did not run. No API key is configured, and this report does not invent a clean result from that service.
Score breakdown
Availability 25 of 25. DNS answer plus a homepage status in the 2xx or 3xx range.
TLS 20 of 20. A valid certificate, with extra points when it has at least 14 days left.
DNS hygiene 0 of 20. SPF, DMARC, CAA, and DNSSEC are five points each.
Security headers 0 of 15. HSTS, CSP, and X-Frame-Options or CSP frame-ancestors.
Safety lists 15 of 15. Points only when the checks ran and came back clean. Unknown is not clean.
Domain age 5 of 5. Five points at one year, two points at 30 days.
Change history
- October 2026: geo city changed from empty to Yangpu (Yangpu Qu).
- October 2026: geo country changed from empty to China.
Questions
Is learnku.com safe?
The checks that ran did not produce a safety warning, and a score is not a promise that the site is safe.
Who hosts learnku.com?
learnku.com is placed in Yangpu (Yangpu Qu), China.
When does learnku.com expire?
learnku.com expires on 1 October 2027 according to https://rdap.verisign.com/com/v1/domain/learnku.com.
Who owns learnku.com?
The registry did not return a person or a company for learnku.com. RDAP often redacts the registrant. The registrar on file is Alibaba Cloud Computing (Beijing) Co., Ltd..
Sources
- RDAP source https://rdap.verisign.com/com/v1/domain/learnku.com at 2026-10-30T14:01:32Z
- DNS source 1.1.1.1:53 at 2026-10-30T14:01:32Z
- TLS source tls:443 at 2026-10-30T14:01:32Z
- HTTP source https://learnku.com/ at 2026-10-30T14:01:32Z
- Tech source wappalyzergo at 2026-10-30T14:01:32Z
- Geo source db-ip at 2026-10-30T14:01:32Z
- Safety source family DNS and local lists at 2026-10-30T14:01:32Z
Related reports
No other indexable reports share this TLD, host, or registrar yet.
Owner of this site?
Ask for a correction or for the report to be removed from search. Public DNS facts stay on the page. An optional badge is not inserted for you.
How to read this report
The sentences under each heading are filled from the latest snapshot. If a collector had nothing to say, that sentence is left out. The target site's own title and meta description, when shown, are quoted as measurements. They are not this page's title. Change history only lists a difference between two snapshots, so the first check starts the clock and later edits are the history. A malware blocklist is the only reason the homepage body is skipped. That fact stays on the report. It does not by itself drop the page from the sitemap or from related-report links.