Windows
Survey link blocked with 'This site can't be reached'
The survey link was being blocked and returned 'This site can't be reached' in the browser. Additional domains were added to the firewall allow list, and a later retest from a test computer showed the link opening.
Killed once by someone from XL.net, on 2026-05-21.
What you see
- Browser shows 'This site can't be reached' when opening the survey link.
Why it happens
Likely A firewall or web-filter rule was likely blocking the survey site until additional domains were allowed.
When it shows up
A survey or other external link fails only on some computers and the browser returns 'This site can't be reached'.
You are in this case if:
- The browser displays 'This site can't be reached' for the survey link.
- Retesting from a different computer succeeds after the firewall allow list is updated.
1 fix below
The steps that killed it
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Someone from XL.net killed this on a Windows computer on 2026-05-21. It is written up from that one repair, so it cites no outside page.