Created a separate page layout and added separate title, meta tags
Created with a mobile-first layout, added media queries for breakpoints
Added favicon
Created a simple logo in illustrator and added this to the header (used png instead of SVG as the browser changes my chosen font to a default fallback font)
Changed content to make it more SEO-friendly (keywords in h1)
Mobile-first layout, tried making it as responsive in mobile, tablet and desktop as possible
Added micro formats to the contact details for better SEO and findability
Did not add any landmark roles as most cases I thought semantic HTML elements would be a better option
Added custom 404 error page
Removed the invalid px unit on the img tag in my HTML
Added PHP server side includes for header/ navigation and footer
Added autoupdating copyright date with PHP
Added JavaScript file which displays an ‘open’ or ‘closed’ icon depending on the time and day