When you visit cp.standard.co.uk, you don't stay there. The page instantly sends you to www.contentpass.net, a micropayment platform used by news sites. So the question isn't really about cp.standard.co.uk itself, but about the site you end up on. Security on the redirect page is solid: HTTPS is enforced, the SSL certificate is valid, and browser protections are in place. That's reassuring for a gateway that handles subscription requests.
What matters most for your safety is checking the final URL. Contentpass is a known service, but it's still a different company than the Evening Standard. If you're asked to create an account or pay, look for typical trust signals on that site: a clear privacy policy, contact information, and a real company behind it. The absence of web history for cp.standard.co.uk isn't surprising, since redirect pages rarely get archived.
For a typical 'is cp.standard.co.uk a scam' check, the short answer is that it appears to be a legitimate redirect to a payment service—not a fake site. But because you're being forwarded to another domain, treat it the same way you would any unfamiliar payment page: verify the URL, look for HTTPS, and only proceed if you're comfortable with the destination's reputation.