I have a free website from a supplier that the url is long and complicated. I want the url to be more user friendly like www.mycompany.co.uk is this possible and if so how? Thanks for your help.
Anyone can register a domain name, but it has to be hosted by someone. if you want to get your own, unique UK name, you can do it by starting here
Follow the steps, and you'll be pointed to good, reliable hosting companies who will host your name, and provide you with the services you need.
As LastChip says, you'll have to pay for the name registration and the hosting service, but if you want your own domain name there are no shortcuts.
To add a bit of context to your question, all domain names are owned by registrars. These companies then allow you to rent the domain names. This means that they then point the traffic looking for your domain name to your desired location (your website). These registrars require servers to do this and that is why you must pay for them.
Free domains will often not be giving you a full domain but actually giving you a sub-domain (www.yourBusiness.000webhostapp.com). This not only advertises their business but also prevents them from needing to have multiple domain names.
Many hosting and registrar companies will also offer other payed services, such as WHOIS protection, which hides your personal details from whois.com lookup's.
This is all more complex than I have explained, but I hope this gives you insight into why payment is needed for several of these services.
As for recommended hosts, I always personally recommend TSOHOST due to the good up-time and great customer service.
"To add a bit of context to your question, all domain names are owned by registrars. These companies then allow you to rent the domain names."
That's not true - domain name registrars don't 'own' domain names - they simply register them for other people. When someone registers a name, that individual owns the name for the period of its registration, and has an automatic right to renew the registration over and over again on payment of a renewal fee. Courts have ruled that domain names are tangible assets - owned by the people who register them with a domain name registrar.
You don't 'rent' a name from a registrar, you pay a registration fee.
As for hosting, I have been involved in web design and hosting for many years, and have found Heart Internet to be a consistently good and reliable domain name registrar and award winning hosting company. There are other good web hosts - find one that suits you by reading reviews.
This thread is now locked and can not be replied to.