“Your connection is not private” for specific website, once when opening a new tab

Like many, since March, I’ve been working from home and using the company’s VPN to do my work.

Recently, if I open a new tab in Chrome, and navigate to "news.bbc.co.uk", I got the aforementioned error, with the supplemental information being:

Attackers might be trying to steal your information from news.bbc.co.uk.x.878874e0029b7043d30ab470050dec81a4e1.9270fd51.id.opendns.com (for example, passwords, messages, or credit cards). Learn more

  • This only happened when I opened a new tab.
  • It did not happen for any other site that I visited, just the BBC.
  • When I opened a new tab, and typed https://news.bbc.co.uk it (correctly) had no issue.
  • After forcing https as above, opening a new tab and just typing news.bbc.co.uk it worked.
  • A few minutes later, just typing news.bbc.co.uk once again causes a Privacy Error.

I was wondering why this is just happening to the BBC site, and no others, and what the redirect URL means (with OpenDNS). When it fails, this is what is in the address bar:

https://news.bbc.co.uk.x.878874e0029b7043d30ab470050dec81a4e1.9270fd51.id.opendns.com/h/news.bbc.co.uk/?X-OpenDNS-Session=_878874e0029b7043d30ab470050dec81a4e19270fd51_eMU5iVa1_