openu.si is registered with Spaceship, Inc. and is hosted on AS16509 in United States. Its SSL certificate from GoDaddy.com is valid until 23 Apr 2027, 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 -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
The page is served over plain HTTP, so HTTPS can’t be enforced.
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.
From robots.txt. “Partly blocked”: kept out of some pages, not the homepage. 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.
339 similar domains registered in the last 90 days — possible typosquatting or phishing.
| Domain | Why it’s similar | Registered | Status | Report |
|---|---|---|---|---|
| openy.si | Typo | 12 Oct 2026 | Checking… | Report → |
| openi.online | Typo | 25 Oct 2026 | Checking… | Report → |
| openi.ng | Typo | 5 Aug 2026 | Checking… | Report → |
| openj.store | Typo | 3 Aug 2026 | Checking… | Report → |
| openj.shop | Typo | 2 Aug 2026 | Checking… | Report → |
From CubDomain's daily newly registered domains. Similar doesn't mean malicious.
Is openu.si’s name taken on other extensions?
Every IP address openu.si resolves to, and where it's hosted.
| Host | IPv4 address | TTL |
|---|---|---|
| openu.si | 13.248.169.48 | 3600 |
| openu.si | 76.223.54.146 | 3600 |
| Host | Mail server | TTL |
|---|---|---|
| openu.si | 0 | 3600 |
| Host | Name server | TTL |
|---|---|---|
| openu.si | ns1.afternic.com | 86400 |
| openu.si | ns2.afternic.com | 86400 |
| Host | Text | TTL |
|---|---|---|
| openu.si | "v=spf1 -all" | 3600 |
| Host | Start of authority | TTL |
|---|---|---|
| openu.si | ns2.afternic.com dns.jomax.net 1 28800 7200 604800 86400 | 3600 |
Other domains served from 13.248.169.48. Normal for shared hosting and CDNs.
No reviews yet. Used openu.si? 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.
openu.si has no community safety rating yet. Its SSL certificate is valid until 23 Apr 2027. See Security →
openu.si is registered through Spaceship, Inc. The owner's details are hidden by a privacy service in the public WHOIS record. See WHOIS →
openu.si is served from 2 IP addresses, mainly on AS16509 in United States. See Hosting →
Raw registry data for openu.si. May be redacted by privacy services.
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % This is ARNES whois database %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % Rights restricted by copyright. %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % The WHOIS service offered by Arnes, .si Registry, is % provided for information purposes only. It allows persons % to check whether a specific domain name is still available % or not and to obtain information related to the registration % records of existing domain names. % % This WHOIS service accepts and displays only ASCII characters. % By submitting a query to our WHOIS lookup service, you agree % to the restrictions on the use of WHOIS and WHOIS data as follows: % o You may not allow, enable or otherwise support % the transmission of unsolicited, commercial advertising % or other solicitations, whether via email or otherwise; % o You may not use the information to target advertising % in any possible way; % o You may not cause inconvenience the domain name holders % in any possible way by sending them messages % (whether by automated, electronic processes capable of % enabling high volumes or other possible means); % o You may not copy, extract and/or publish contents % of the WHOIS database. %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% domain: openu.si registrar: Spaceship, Inc. registrar-url: https://spaceship.com/ nameserver: ns1.afternic.com nameserver: ns2.afternic.com registrant: O1586616 status: ok created: 2026-10-06 expire: 2027-10-06 source: ARNES Domain holder: NOT DISCLOSED Tech: NOT DISCLOSED %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % Full domain details are available here http://www.registry.si %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
The first response from http://www.openu.si, before any redirect: caching, server and policy headers.
Four timed TCP connections to port 443 from CubDomain's servers.
CubDomain is not affiliated with openu.si. 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, http://openu.si/
Spam and malware blocklists for the site's IP and mail servers.
Found in public certificate transparency logs.
Searching the certificate transparency logs… This can take up to a minute.
When the site first appeared, and what has changed since.
No changes seen since we started recording on 29 Oct 2026.