2 for text and background (primary & secondary colors).
1 accent color to highlight important elements (number 4 & buttons).
An optional tertiary color to add a bit of personality (the hue slider).
Try adding a color fill gradient (or just darker bottom border) to navbars; gradient should be darker at bottom and only get slightly lighter towards the top
Most web servers TCP slow start algorithm starts by sending 10 TCP packets which works out to 14kb
404 pages
Guidelines
be brief: the message on the 404 page should be straightforward and easy to understand, informing the user that the page they were trying to access is not available.
be contrite: the tone of the 404 page should be friendly and apologetic, acknowledging the user’s inconvenience and expressing empathy.
be helpful: provide links to other areas of the website or a search box that can help users find what they’re looking for quickly and easily.
be informative: include contact information, such as a feedback form, social media account, or email address to give users an alternative way to reach out to you for assistance.
be you: incorporate your brand’s visual identity, including logos and colors, to help reinforce brand recognition and create a cohesive user experience.