~/d/sainsburys.co.uk
// sainsburys.co.uk
Live audit across 8 checks. Cached 24h · generated less than a minute ago.
domain_grade
A
strong
87
/ 100 · across 8 checks
// points lost on:
spf −5
security headers −5
dnssec −3
SSL Certificate
[ OK ]
Valid for 317 more days.
Issued by Sectigo Public Server Authentication CA EV R36 · 317 days left · TLSv1.3
DMARC Policy
[ OK ]
Strict DMARC policy enforced. Spoofed mail is rejected.
v=DMARC1; p=reject; rua=mailto:[email protected]; ruf=mailto:[email protected]; aspf=r; fo=1
SPF Record
[ WARN ]
Soft fail (~all). Unauthorized senders flagged but not rejected. Consider -all for stronger protection.
7 lookups · all=~all
MX Records
[ OK ]
MX configured (2 record(s)).
5 mxa-0059c002.gslb.pphosted.com · 5 mxb-0059c002.gslb.pphosted.com
Name Servers
[ OK ]
4 authoritative nameservers
edns63.ultradns.biz · edns63.ultradns.com · edns63.ultradns.net
WHOIS
[ OK ]
Valid for 229 more days.
Registrar: CSC Corporate Domains, Inc · expires 2026-12-06
Security Headers
[ WARN ]
Decent but improvable (52/100) — missing: X-Frame-Options, Permissions-Policy · weak: strict-transport-security
Score 52/100
[ embed_grade_badge ]
Domain grade: A — strong
markdown (github readme)
[](https://dombrains.com/d/sainsburys.co.uk)
html (any webpage)
<a href="https://dombrains.com/d/sainsburys.co.uk"><img src="https://dombrains.com/badge/sainsburys.co.uk/grade.svg" alt="DomBrains grade: A"></a>
// re-queries our scoring engine · cached 1h at the edge · backlinks to this profile page
[ per_check_badges ]
<img src="https://dombrains.com/badge/sainsburys.co.uk/ssl">
<img src="https://dombrains.com/badge/sainsburys.co.uk/dmarc">
<img src="https://dombrains.com/badge/sainsburys.co.uk/spf">
<img src="https://dombrains.com/badge/sainsburys.co.uk/mx">
<img src="https://dombrains.com/badge/sainsburys.co.uk/dnssec">
<img src="https://dombrains.com/badge/sainsburys.co.uk/security_headers">