smsendi.pl has no AAAA records.
Apex domains cannot have CNAME records.
v=spf1
ip4:91.227.202.0/24 ip4:185.54.187.0/24 ip4:89.25.157.192/28 ip4:188.117.180.0/24 +a +mx -all
Google
Domain verification
google-site-verification=ucrkADF8fL9JpDZ72VMOIxBe0srdaJss526d_eamE5I
lynn.ns.cloudflare.com
Cloudflare
tani.ns.cloudflare.com
Cloudflare
Zone apex
Start of authority
Email
Serial
2395773673
Refresh
2h 46m 40s
Retry
40m
Expire
7d
Negative cache TTL
30m