Alternatives to 51c.ru
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51c.ru was registered with REGRU-RU on 10 Sept 2026 and is hosted on AS210079 in Russia. Its SSL certificate from Let's Encrypt is valid until 11 Dec 2026, and the site does not support HTTP/3.
On-page basics for the homepage.
Networks cache previews — changes can take time to show.
What security vendors and the WOT community say about this domain.
1 of 5 protections set up
Lists the servers allowed to send email for this domain.
v=spf1 ip4:185.154.54.8 ip4:185.154.54.8 a mx ~allNo key at the 12 common selectors we checked. A custom selector can’t be found from DNS alone.
—No DMARC policy: receivers aren’t told what to do with mail that fails SPF and DKIM.
—Forces encrypted delivery between mail servers.
—Shows the brand logo in supporting inboxes. Optional; needs DMARC enforcement.
—Read from the domain's public DNS records.
0 of 6 recommended headers
Forces HTTPS on future visits.
Limits where scripts can load from — the main defence against XSS.
Stops the site being framed for clickjacking.
Prevents browsers guessing file types.
Which AI crawlers this site allows, and whether it publishes an llms.txt.
No robots.txt, so every crawler may crawl the whole site. Not every crawler follows it. llms.txt is an optional guide some sites publish for AI assistants — it is not a ranking factor.
Pages and files that show who runs the site and how it handles data.
What loads and tracks visitors when the homepage opens.
Running a full browser scan of the homepage… This takes about a minute.
Internet standards that make a site faster and safer.
The path from a typed address to the final page.
270 similar domains registered in the last 90 days — possible typosquatting or phishing.
| Domain | Why it’s similar | Registered | Status | Report |
|---|---|---|---|---|
| 5lc.pics | Look-alike characters | 27 Oct 2026 | Checking… | Report → |
| 15c.mom | Typo | 19 Oct 2026 | Checking… | Report → |
| 51c.cn | Other extension | 19 Oct 2026 | Checking… | Report → |
| 51c.space | Other extension | 10 Oct 2026 | Checking… | Report → |
| 51c.life | Other extension | 9 Oct 2026 | Checking… | Report → |
From CubDomain's daily newly registered domains. Similar doesn't mean malicious.
Is 51c.ru’s name taken on other extensions?
2 technologies detected across 1 category.
Detected from headers, page source and DNS · Automatic and may be incomplete · Suggest a correction
Every IP address 51c.ru resolves to, and where it's hosted.
| Host | IPv4 address | TTL |
|---|---|---|
| 51c.ru | 185.154.54.8 | 300 |
| Host | Mail server | TTL |
|---|---|---|
| 51c.ru | 10 mail.51c.ru | 300 |
| Host | Name server | TTL |
|---|---|---|
| 51c.ru | ns1.eurobyte.ru | 300 |
| 51c.ru | ns2.eurobyte.ru | 300 |
| 51c.ru | ns3.eurobyte.ru | 300 |
| 51c.ru | ns4.eurobyte.ru | 300 |
| Host | Text | TTL |
|---|---|---|
| 51c.ru | "v=spf1 ip4:185.154.54.8 ip4:185.154.54.8 a mx ~all" | 300 |
| Host | Start of authority | TTL |
|---|---|---|
| 51c.ru | ns1.eurobyte.ru support.eurobyte.ru 2026091200 10800 3600 604800 86400 | 300 |
Other domains served from 185.154.54.8. Normal for shared hosting and CDNs.
No reviews yet. Used 51c.ru? Be the first to say how it went.
Reviews are from CubDomain users and are separate from the security verdicts above.
Common questions, answered from this report's data.
51c.ru has no community safety rating yet, and it isn't on any of the 6 blocklists we check. Its SSL certificate is valid until 11 Dec 2026. See Security →
51c.ru is registered through REGRU-RU. See WHOIS →
51c.ru was registered on 10 Sept 2026, making it 1 month old. See Overview →
51c.ru is served from 1 IP address, mainly on AS210079 in Russia. See Hosting →
We detected 2 technologies, including jQuery and jQuery UI. See Built with →
Raw registry data for 51c.ru. May be redacted by privacy services.
% TCI Whois Service. Terms of use: % https://tcinet.ru/documents/whois_ru_rf.pdf (in Russian) % https://tcinet.ru/documents/whois_su.pdf (in Russian) domain: 51C.RU nserver: ns1.eurobyte.ru. nserver: ns2.eurobyte.ru. state: REGISTERED, DELEGATED, VERIFIED person: Private Person registrar: REGRU-RU admin-contact: http://www.reg.ru/whois/admin_contact created: 2026-09-10T08:41:27Z paid-till: 2027-09-10T08:41:27Z free-date: 2027-10-11 source: TCI Last updated on 2026-11-08T03:03:01Z
The first response from http://www.51c.ru, before any redirect: caching, server and policy headers.
Four timed TCP connections to port 443 from CubDomain's servers.
CubDomain is not affiliated with 51c.ru. Data is collected independently from public sources and some figures are estimates, provided for information only.
Controls how much of the URL is shared with other sites.
Restricts camera, microphone and other browser features.
From the homepage's response, https://51c.ru/
Spam and malware blocklists for the site's IP and mail servers.
0 of 6 blocklists list this domain's IP or mail servers.
Found in public certificate transparency logs.
| Subdomain | First seen |
|---|---|
| www.51c.ru | Nov 2019 |
When the site first appeared, and what has changed since.
No changes seen since we started recording on 8 Nov 2026.