A web based spell-checker is usually a tool that searches text for misspelled terms and indicates fixes. It catches typos and normally bewildered words (like "have an effect on" and "influence"). Not a word in the English language will have the letter ‘s’ next ‘x’. Look at the next phrases. https://spellingrules71582.imblogs.net/82539313/the-ultimate-guide-to-spelling-mistakes-in-english