When i use safari to search. m. Is always at start help please

"m." in front of a website name usually signifies something optimized for the mobile devices as opposed to a computer - can you perchance post a screen shot of what you are referring to?

Try resetting Safari. Close Safari completely from the multitasking window by double clicking the Home button and swiping up the Safari preview pane until it disappears from the screen. You may have to look for the Safari pane by scrawling to the left as there may be other panes there from other apps. Then go to Settings > Safari > Clear History and Website Data. Then do a forced restart. Hold down the Home and Wake/Sleep buttons at the same time for about 15-20 seconds until the Apple logo appears. Ignore the "Slide to power off" text if it comes up. You will not lose anything.