Opt.ac.cn
Server IP address resolved: No
Http response code: None
Last Checked: 01/24/2025
Opt.ac.cn attracts 1,694 unique visitors daily, generating 3,388 pageviews. The estimated value of opt.ac.cn is 2,568 USD. Each visitor views approximately 2.14 pages on average.
Opt.ac.cn is registered with the .CN top-level domain. Explore additional websites within the .CN zone.
According to the latest verification on (January 24, 2025), opt.ac.cn has an invalid SSL certificate. Click the "Refresh" button in the Safety Information section for updated SSL details.
According to Google Safe Browsing and Google Safe Search opt.ac.cn appears to be a safe domain.
Based on Google's Mobile-Friendly test, opt.ac.cn is not well optimized for mobile and tablet devices. Ensuring your site is mobile-friendly guarantees better performance across all devices, and improving the web page loading time could further enhance user experience.
not found
We gather website safety and reputation data and compare it with available third-party sources so we calculate own safety and trustworthiness rate based on information that we get.
Norton ConnectSafe evaluates opt.ac.cn for any unsafe and insecure content. The results are critical for families with young children.
SafeSearch is used as a parental control tool to filter out any inappropriate for your children search results on your devices: phones, tablets or personal computers.
Malware: not found.
Phishing: not detected.
Unwanted software: not found.
Harmfull applications: not found.
Google Safe Browsing notifies when websites are compromised by malicious actors. These protections work across Google products and provide a safer online experience.
McAfee assesses opt.ac.cn for a meaningful set of security threats. Featured dangers from annoying pop-ups to hidden Trojans, that can steal your identity, will be revealed. McAfee does not analyze opt.ac.cn for mature or inappropriate content, only security checks are evaluated.
The WOT calculates reputation of the opt.ac.cn. This reputation system receives ratings from users and information from third-party sources, assesses the opt.ac.cn for safety features and confirms, whether opt.ac.cn is suitable for children.
| Domain | Unknown |
| Issuer Organization | Unknown |
| Issuer | Unknown |
| Algorithm | Unknown |
| Valid form | Unknown |
| Expiration | Unknown |
| Signed | No information |
| Additional Domains |
ASN ID:
ASN Title:
Last Update: 01/24/2025
Domain Name: opt.ac.cn
ROID: 20021209s10071s00001609-cn
Domain Status: ok
Registrant: 中国科学院西安光学精密机械研究所
Registrant Contact Email: libo@opt.ac.cn
Sponsoring Registrar: 北京中科三方网络技术有限公司
Name Server: ns3.cstnet.cn
Name Server: ns4.cstnet.cn
Registration Time: 1997-04-22 00:00:00
Expiration Time: 2025-07-01 00:00:00
DNSSEC: unsigned
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