The wordpress website is showing ‘w’ while it loads and in the footer

If you view the source you will see a w right before the DOCTYPE

w
<!DOCTYPE html>

<!--[if IE 7]>  <html class="ie ie7" lang="en-US" prefix="og: http://ogp.me/ns#">   <![endif]-->

<!--[if IE 8]>  <html class="ie ie8" lang="en-US" prefix="og: http://ogp.me/ns#">   <![endif]-->

<!--[if IE 9]>  <html class="ie ie9" lang="en-US" prefix="og: http://ogp.me/ns#">   <![endif]-->

<!--[if (gt IE 9)|!(IE)]><!-->

<html lang="en-US" prefix="og: http://ogp.me/ns#">

Check your header.php file as this is likely where the w is.

tech