optosky.com
HTML metadata
Technology
- Server
- nginx
- Analytics
-
- Google Tag Manager
- Fonts
-
- Google Fonts
Third-party hosts loaded (3)
- code.jivosite.com×2
- www.googletagmanager.com×2
- fonts.googleapis.com×1
Social
Contact
- Phone
Registration
- Registrar
- Alibaba Cloud Computing (Beijing) Co., Ltd.
- Created
- 2014-10-07
- Expires
- 2030-10-07 1602 days left
- Updated
- 2025-07-29
- Name servers
-
- dns7.hichina.com
- dns8.hichina.com
DNS records live
- NS
-
- dns7.hichina.com
- dns8.hichina.com
- MX
-
- 1 mx.spamgateway.cn
- 3 mx1.spamgateway.cn
Email authentication weak
- SPF
-
v=spf1 ip4:112.48.26.59 include:spf.mailrelay.cn ~allsoftfail (~all) - DMARC
- not published
- DKIM
- no key found at common selectors
Certificate (current)
DNSPod DV TLS RSA CA 2025
Expires in 149 days
HTTP security headers
- present
-
- strict-transport-security
- findings
-
- missing Content Security Policy
- missing frame protection
- missing content type protection
- missing Referrer Policy
- missing Permissions Policy
Header values
- strict-transport-security
max-age=31536000