The phrase "a website about" is correct and usable in written English.
You can use it when describing the subject or focus of a website.
Example: "I created a website about sustainable living to share tips and resources with others."
Alternatives: "a site dedicated to" or "an online platform regarding".
In 2015, Peter started MadeHereNow, a website about UK manufacturing.
He previously ran a poultry farm, then a website about his home city of Chennai, then a film magazine.
Cambridge's Judge Business School maintains a website about Indian innovations.Emerging-market countries are investing heavily in business schools.
I didn't realise why, until later: there had been talk on a website about how he'd had a disastrous facelift.
One early appraiser made a crack that has been tweeted thousands of times since: "This is like the Seinfeld of the Internet — a website about nothing".
Initially, the sports enthusiast had wanted to create a website about Olympic athletes but he saw that the market was saturated.
Mozilla is having a busy week: its latest announcement is a site called MozVR: a virtual reality website about, well, virtual reality websites.
Its business model is to have a "community" (writers who work for free) to build a wiki website about a topic, and then to sell advertising on those pages.
Peter Wilmshurst, a British cardiologist, is facing a lawsuit from an American firm, NMT Medical, over comments he made on an American website about a study into using heart implants to treat migraines.
Patients were given a leaflet or saw a poster or a website link about the project, inviting them to visit the project website where they would register for the project using the reference number from that source.
Mr Kambaksh was arrested and charged in October after downloading a document from an Iranian website about Islam and women's rights.
