I recently changed the namservers for a domain to the ones provided during the setup process. They are correct when I do a DNS lookup even using 1.1.1.1 and this has been the case for well over 48 hours.
Despite this, the status of the domain is still showing as pending nameserver change and manually triggering a check doesn’t resolve this.
That’s returned by the correct nameserver, tanner.ns.cloudflare.com. Cloudflare can’t finish verifying your email since one of them is wrong at your registrar though.
uk. 172800 IN NS dns4.nic.uk.
uk. 172800 IN NS nsc.nic.uk.
uk. 172800 IN NS nsd.nic.uk.
uk. 172800 IN NS dns1.nic.uk.
uk. 172800 IN NS nsa.nic.uk.
uk. 172800 IN NS dns3.nic.uk.
uk. 172800 IN NS nsb.nic.uk.
uk. 172800 IN NS dns2.nic.uk.
;; Received 909 bytes from 192.112.36.4#53(g.root-servers.net) in 67 ms
intentio.uk. 172800 IN NS grannbo.ns.cloudflare.comarnold.ns.cloudflare.com.
intentio.uk. 172800 IN NS tanner.ns.cloudflare.com.
couldn't get address for 'grannbo.ns.cloudflare.comarnold.ns.cloudflare.com': not found
;; Received 686 bytes from 156.154.101.3#53(nsb.nic.uk) in 7 ms
intentio.uk. 86400 IN NS grannbo.ns.cloudflare.com.
intentio.uk. 86400 IN NS tanner.ns.cloudflare.com.
;; Received 100 bytes from 172.64.35.97#53(tanner.ns.cloudflare.com) in 7 ms