But the encoding is UTF-8, which was supposed to solve forever these character encoding issues!?
What is even more interesting is that source code of the page contains the correct UTF-8 characters: the text is perfectly readable Russian, if you right-click the page and see source in Notepad. Also if saved to your local computer with .html extension, the text is shown correctly when opened with a web browser.
Any ideas what else I can do to solve this problem, except downgrading the encoding from Unicode age back to the encodings of previous millennium, which I expect to easily solve the problem?
The website is based on one php file, which is saved in Notepad+ as UTF-8 without BOM.