nshep

Just a very small thing. The text in your footer " All images on this site are copyright". It should be "copyrighted", no?

Ok, that would take care of that aspect.

Just some quick input: The only device in my house that can still accept a CD/DVD is the PlayStation. None of the laptops around have an optical drive anymore and I don't own a stereo either. I'm saying this because I am not the exception. There are plenty of other people like me and the number is probably growing. So, this is not the best technology to bank on. Aside from that, your site could use some improvement. The logo and shopping cart icon are barely visible on top of the photo background, the fonts don't match very well, and overall it's a bit bland. In addition, you should probably have a native speaker look over your English copy. Plus, your main CTA is not doing anything. Also, why is the Contact Us page purple? Finally, your About Us page is a mess.

I rely mostly on SEO for content marketing. Aside from that, I publish on Twitter and Facebook. Here, Facebook is the one that brings in more traffic. However, I don't only publish my own content, I also curate interesting content from other websites and share it. Has worked well so far.

Have a look at the link @fisicx posted. It will give you specific actions you can take to speed up your site. You can also have a look here: https://gtmetrix.com/reports/www.test-analyse.de/5N14HpAA

Agreed. Make sure to cover the bases on your own website first. While social media does have impact on SEO (though very indirectly) it's very much on the outside of your marketing machine. Build a solid foundation first before worrying about it too much.

Welcome to the forum!

I agree with all of the above. Didn't want to touch that topic though. 5,500+ lines of CSS? Looks like a mess.

.top-bar-section .dropdown li { width: 20%; } Make that number less than 20%

But does that mean you haven't mastered English, because you don't know all the words? I don't think so. Even in my native language (which is not English), I still encounter words that I don't know. Even so, I don't think anyone would say I haven't mastered it. Therefore, as I have stated above, I think it really depends on the definition of "mastery".

Define "master". There's plenty of developers really good at different programming languages. At what point would you consider someone to have mastered it?

Doesn't Facebook Insights tell you the time of day at which most people in your audience are online?

My antivirus gave me a phishing alarm from your site.

max-width width margin and padding font-size display float

For quickly editing stuff, Notepad++ has never let me down.