Please review my website

Please review my website http://gj-vvs.dk. I need some suggestions on SEO work. Thanks in advance.

 

First thing I notice is it flips the bird at usability and accessibility by using PX metric fonts. The WCAG says to use EM not PX, so use 'em!

the light grey on dark grey in your banner/slideshow area is right at the edge of accessibility minimums, I would suggest higher contrast there.

Keyboard navigation seems utterly banjaxed, likely meaning gibberish use of numbered headings. Popping the bonnet to look at the markup, it's a case of "WHAT headings?!?". You've got STRONG doing H3's, job, H1 doing H2's job, and DIV+IMG doing H1 + CSS' job... so there is little to no semantics in the markup.

Again, semantic markup being a sick euphemism for "using HTML properly"

OF COURSE under the hood it's the typical train wreck of "when turdpress met bootcrap" with endless pointless separate stylesheets and scripts, little to no semantics, endless pointless classes for nothing, gibberish use of nearly every HTML tag in use, static scripting in the markup, static style in the markup -- a laundry list of how NOT to write HTML. Hence it wasting 33.5k of markup on delivering 2.7k of plaintext and ONE content image -- aka around 5k of HTML's job! JUST like it wasting 114k of CSS in 11 files on a site that likely doesn't need more than 32k of CSS in one file, or the 213k of JavaScript in 14 files when it's not doing a blasted thing to warrant the presence of more than 32k of JS in two files. (and that's me being generous)

Hardly a shock then that even with my brand spanking new 120mbps downstream connection the page's 44 separate files total is adding around ten seconds to the load time thanks to handshaking -- on a page that by all rights likely shouldn't take more than a second to load or be built with more than a dozen files.

3 out of 10. I've seen worse, that's not saying much.

 

Everything is On there I have found Some Website speed issues you Should Improve speed of that Site.

 

Unfortunately it's not in English so i can't really make sense out of it from a backlinks perspective.
I have noticed that your title is short. You should get as many keywords in there as possible that you are trying to rank for within the limit. Don't make it spammy, make sure it reads well. Do that and you'll start ranking for other keywords or see some bumps.