For a hotel booking site, domain age and transparent ownership are two of the strongest trust signals you can get. Doylecollection.com has both: registered since 2008, and the site publishes a formal business disclosure with real company details. That's exactly what you want to see before handing over your credit card for a room reservation.
The site runs on modern infrastructure with enforced encryption and security headers, though the current SSL certificate is due for renewal in just over a week. While that's common for any site that forgets to auto-renew, it's worth checking that the padlock icon shows as secure on the checkout page before you book. We didn't find any blacklist history or malware flags, and the site has been archived on the Wayback Machine for 17 years, consistent with a legitimate hotel chain.
If you're looking at doylecollection.com reviews, the main takeaway is that this is a known luxury hotel operator with properties in multiple cities. The missing Trustpilot profile is unusual but not a red flag for a group that books primarily through its own website and travel agents. Just make sure the SSL is valid at the time of booking, and you're in safe hands.