Archive

Recent entries, kept in a simple chronological list.

1. August 25, 2026Why a page can work on Wi-Fi but not mobile data
   The two connections may use different DNS resolvers, routes and filtering. Testing each layer separately avoids blaming the browser too early.
2. August 24, 2026What a certificate warning means
   A certificate ties a site name to a cryptographic identity. A warning can indicate a wrong clock, an intercepted connection or a server serving the wrong name.
3. August 23, 2026Private browsing is not invisibility
   It mainly prevents local history and cookies from remaining after the window closes. Networks and visited services still see ordinary connection data.
4. August 22, 2026Refresh and reload are not always the same
   Browsers cache documents and assets differently. A normal reload may reuse files while a full reload asks the server for fresh copies.