423down.com
Domain report: WHOIS, DNS, hosting, SSL and safety. Checked .
Online · 200SafeSSL: 139 days left8 years oldTranco #291872
75
423down.com was registered on 11 Jun 2018 via Alibaba Cloud Computing Ltd. d/b/a HiChina (www.net.cn) and the registry expiry is 11 Jun 2028. WHOIS data came from RDAP at https://rdap.verisign.com/com/v1/domain/423down.com.
423down.com publishes 2 nameservers. DNSSEC is not signed.
423down.com has 1 IPv4 address (45.151.132.50). The geolocation database places 45.151.132.50 in Tukwila, United States.
The TLS certificate from Sectigo Public Server Authentication CA DV R36 is valid and has 139 days left (TLS 1.3). The homepage answered HTTP 200.
Tech detection named Google AdSense, HSTS, MySQL, PHP, Tengine, WordPress and jQuery. The fingerprints ran on the homepage that was already downloaded.
No safety warning was recorded for 423down.com in the checks that ran.
Domain · RDAP/WHOIS
423down.com was registered on 11 Jun 2018 via Alibaba Cloud Computing Ltd. d/b/a HiChina (www.net.cn). The registry returned 1 status value and 2 nameservers from https://rdap.verisign.com/com/v1/domain/423down.com.
| Registered | since 11 Jun 2018 |
|---|---|
| Created | 11 June 2018 |
| Updated | 13 February 2025 |
| Expires | 11 June 2028 |
| Registrar | Alibaba Cloud Computing Ltd. d/b/a HiChina (www.net.cn) |
| Status | client transfer prohibited |
| Nameservers | kerwin.dnspod.net, sled.dnspod.net |
| DNSSEC | no |
| Source | https://rdap.verisign.com/com/v1/domain/423down.com |
423down.com carries the status "client transfer prohibited". The registrar has asked the registry to refuse a transfer to another registrar. The status is a lock on the domain object. It is not evidence about the content of the site.
Nameserver kerwin.dnspod.net is published for 423down.com in the registration record from https://rdap.verisign.com/com/v1/domain/423down.com.
Nameserver sled.dnspod.net is published for 423down.com in the registration record from https://rdap.verisign.com/com/v1/domain/423down.com.
DNS
423down.com has 1 address record, 2 mail exchangers and 2 nameservers, measured at 1.1.1.1:53.
| A | 45.151.132.50 |
|---|---|
| AAAA | — |
| NS | kerwin.dnspod.net, sled.dnspod.net |
| MX | mxbiz1.qq.com (5), mxbiz2.qq.com (10) |
| SPF | absent |
| DMARC | absent |
| CAA | — |
| Wildcard | off |
| DNSSEC | not signed |
| Resolver | 1.1.1.1:53 |
IPv4 address 45.151.132.50 answers for 423down.com at resolver 1.1.1.1:53.
Mail exchanger mxbiz1.qq.com has preference 5.
Mail exchanger mxbiz2.qq.com has preference 10.
Hosting and geo
423down.com is placed in Tukwila, United States by the local geolocation database (db-ip).
| Address | 45.151.132.50 |
|---|---|
| Country | United States |
| City | Tukwila |
| Source | db-ip |
SSL/TLS
The certificate for 423down.com is valid, with 139 days left and 2 subject alternative names. Source: tls:443.
| Issuer | Sectigo Public Server Authentication CA DV R36 |
|---|---|
| Subject | 423down.com |
| Valid from | 2 September 2026 |
| Valid until | 19 March 2027 |
| Days left | 139 |
| SAN count | 2 |
| Protocol | TLS 1.3 |
| Source | tls:443 |
Subject alternative names: 423down.com, www.423down.com.
Tech stack
Tech detection checked the fetched homepage and named 7 products. Source: wappalyzergo.
- Google AdSense · Advertising
- HSTS · Security
- MySQL · Databases
- PHP · Programming languages
- Tengine · Web servers
- WordPress · CMS, Blogs
- jQuery · JavaScript libraries
Google AdSense is filed under Advertising.
HSTS is filed under Security.
MySQL is filed under Databases.
PHP is filed under Programming languages.
Tengine is filed under Web servers.
WordPress is filed under CMS, Blogs.
jQuery is filed under JavaScript libraries.
On-page checks
The homepage returned HTTP 200 in 176 ms. The target title is 7 characters and the page has 1 H1 heading.
| Status | 200 |
|---|---|
| TTFB | 176 ms |
| Title length | 7 yes |
| Quoted title | "423Down" |
| Meta description | "安全下载超1000款绿色便携软件。始于2014，专注软件净化12年，所有资源经三重检测，提供纯净、去广告的正版替代方案。| 423DOWN" yes |
| H1 count | 1 |
| HSTS | yes yes |
| CSP | no |
| X-Frame-Options | SAMEORIGIN |
| Robots meta | index,follow |
| Canonical | — |
| Language | zh-CN |
| Links | 143 |
| Images | 17 |
| 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 423down.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 | yes |
| 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 10 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 Tukwila.
- October 2026: geo country changed from empty to United States.
Questions
Is 423down.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 423down.com?
423down.com is placed in Tukwila, United States.
When does 423down.com expire?
423down.com expires on 11 June 2028 according to https://rdap.verisign.com/com/v1/domain/423down.com.
Who owns 423down.com?
The registry did not return a person or a company for 423down.com. RDAP often redacts the registrant. The registrar on file is Alibaba Cloud Computing Ltd. d/b/a HiChina (www.net.cn).
Sources
- RDAP source https://rdap.verisign.com/com/v1/domain/423down.com at 2026-10-30T13:41:32Z
- DNS source 1.1.1.1:53 at 2026-10-30T13:41:32Z
- TLS source tls:443 at 2026-10-30T13:41:32Z
- HTTP source https://423down.com/ at 2026-10-30T13:41:32Z
- Tech source wappalyzergo at 2026-10-30T13:41:32Z
- Geo source db-ip at 2026-10-30T13:41:32Z
- Safety source family DNS and local lists at 2026-10-30T13:41:32Z
Related reports
No other indexable reports share this TLD, host, or registrar yet.
.com Alibaba Cloud Computing Ltd. d/b/a HiChina (www.net.cn)
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.