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"This is not a secure connection" - what to do?

  • Oct 09, 2025
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On some sites in Chrome or Firefox the note "This is no secure connection". What lies behind it, we can tell you in this practical tip.

Message "This is not a secure connection" behind it

  • For safe Surfing in the Browser, some websites have an encrypted connection using HTTPS.
  • Here are all the entries will be transferred to the website is encrypted for security.
  • The security shall be certified by the corresponding certificate and guaranteed.
  • It should come to problems with the certificate or the secure connection, you receive, for security reasons, this message.
  • At some websites, you can then click on "Advanced" > "continue Anyway", and so the site visit.
  • However, the connection to the website may be blocked entirely. In this case, the owner of the site and to inform them of the error so that this can be resolved quickly.
  • Tip: In some cases, it may help if you open the page in private mode of the browser.
"This is not a secure connection"
What you can do if the error message "DNS Server not responding" appears, you will learn in the next tip.

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