Top United Kingdom Websites SSL Security Ranking (2026) — Best Sites by Grade
Scanned from 20,000 top global websites · Updated 2026-11-03
| # | Domain | Grade | Score | 30d trend | Δ | TLS | Issuer | HSTS | Expires |
|---|---|---|---|---|---|---|---|---|---|
| 1 | alaraby.co.uk | A | 100 | — | — | TLS1.3 | DigiCert Global G3 TLS ECC SHA384 2020 CA1 | — | 8 d |
| 2 | campaign.gov.uk | A | 100 | — | — | TLS1.3 | Let's Encrypt | — | 0 d |
| 3 | companieshouse.gov.uk | A | 100 | — | — | TLS1.3 | GlobalSign Atlas R3 OV TLS CA 2026 Q1 | — | 0 d |
| 4 | coop.co.uk | A | 100 | — | — | TLS1.3 | GlobalSign Atlas R46 DV TLS CA 2026 Q3 | — | 16 d |
| 5 | dailymail.co.uk | A | 100 | — | — | TLS1.3 | DigiCert Global G3 TLS ECC SHA384 2020 CA1 | — | 13 d |
| 6 | digitalspy.co.uk | A | 100 | — | — | TLS1.3 | GlobalSign Atlas R3 DV TLS CA 2025 Q4 | — | 92 d |
| 7 | expertreviews.co.uk | A | 100 | — | — | TLS1.3 | Let's Encrypt | — | 0 d |
| 8 | food.gov.uk | A | 100 | — | — | TLS1.3 | GlobalSign Atlas R3 OV TLS CA 2026 Q2 | — | 68 d |
| 9 | gamstop.co.uk | A | 100 | — | — | TLS1.3 | Amazon RSA 2048 M01 | — | 46 d |
| 10 | gettyimages.co.uk | A | 100 | — | — | TLS1.3 | Amazon RSA 2048 M01 | 74 d | |
| 11 | glamourmagazine.co.uk | A | 100 | — | — | TLS1.3 | Amazon RSA 2048 M01 | — | 19 d |
| 12 | gq-magazine.co.uk | A | 100 | — | — | TLS1.3 | Amazon RSA 2048 M01 | — | 19 d |
| 13 | graziadaily.co.uk | A | 100 | — | — | TLS1.3 | Amazon RSA 2048 M01 | — | 74 d |
| 14 | greenpeace.org.uk | A | 100 | — | — | TLS1.3 | Starfield TLS Intermediate CA DV - R1v1 | — | 13 d |
| 15 | guardian.co.uk | A | 100 | — | — | TLS1.3 | GlobalSign Atlas R46 DV TLS CA 2026 Q3 | — | 122 d |
| 16 | hmrc.gov.uk | A | 100 | — | — | TLS1.3 | Amazon RSA 2048 M01 | — | 50 d |
| 17 | houseandgarden.co.uk | A | 100 | — | — | TLS1.3 | Amazon RSA 2048 M01 | — | 19 d |
| 18 | itpro.co.uk | A | 100 | — | — | TLS1.3 | Let's Encrypt | — | 17 d |
| 19 | majestic12.co.uk | A | 100 | — | — | TLS1.3 | Sectigo Public Server Authentication CA DV R36 | — | 109 d |
| 20 | metoffice.gov.uk | A | 100 | — | — | TLS1.3 | DigiCert Global G3 TLS ECC SHA384 2020 CA1 | 122 d | |
| 21 | microgaming.co.uk | A | 100 | — | — | TLS1.3 | Amazon RSA 2048 M04 | — | 124 d |
| 22 | nationalcrimeagency.gov.uk | A | 100 | — | — | TLS1.3 | GeoTrust TLS RSA CA G1 | — | 101 d |
| 23 | next.co.uk | A | 100 | — | — | TLS1.3 | DigiCert Global G2 TLS RSA SHA256 2020 CA1 | — | 23 d |
| 24 | pinterest.co.uk | A | 100 | — | — | TLS1.3 | DigiCert Global G2 TLS RSA SHA256 2020 CA1 | — | 116 d |
| 25 | pressgazette.co.uk | A | 100 | — | — | TLS1.3 | Let's Encrypt | 30 d | |
| 26 | qub.ac.uk | A | 100 | — | — | TLS1.3 | Amazon RSA 2048 M04 | — | 52 d |
| 27 | sainsburys.co.uk | A | 100 | — | — | TLS1.3 | Sectigo Public Server Authentication CA EV R36 | 122 d | |
| 28 | salford.ac.uk | A | 100 | — | — | TLS1.3 | GeoTrust TLS RSA CA G1 | — | 38 d |
| 29 | scotland.gov.uk | A | 100 | — | — | TLS1.3 | Let's Encrypt | — | 0 d |
| 30 | service.gov.uk | A | 100 | — | — | TLS1.3 | GlobalSign RSA OV SSL CA 2018 | — | 56 d |
| 31 | stem.org.uk | A | 100 | — | — | TLS1.3 | Let's Encrypt | — | 0 d |
| 32 | surveymonkey.co.uk | A | 100 | — | — | TLS1.3 | Amazon RSA 2048 M01 | — | 24 d |
| 33 | telegraph.co.uk | A | 100 | — | — | TLS1.3 | Amazon RSA 2048 M01 | — | 15 d |
| 34 | theweek.co.uk | A | 100 | — | — | TLS1.3 | Let's Encrypt | — | 0 d |
| 35 | thisislondon.co.uk | A | 100 | — | — | TLS1.3 | Let's Encrypt | — | 0 d |
| 36 | thisismoney.co.uk | A | 100 | — | — | TLS1.3 | DigiCert Global G3 TLS ECC SHA384 2020 CA1 | 13 d | |
| 37 | travelodge.co.uk | A | 100 | — | — | TLS1.3 | GeoTrust TLS RSA CA G1 | — | 97 d |
| 38 | uclan.ac.uk | A | 100 | — | — | TLS1.3 | Let's Encrypt | — | 0 d |
| 39 | vogue.co.uk | A | 100 | — | — | TLS1.3 | Amazon RSA 2048 M01 | — | 19 d |
| 40 | wired.co.uk | A | 100 | — | — | TLS1.3 | Amazon RSA 2048 M01 | — | 19 d |
| 41 | yougov.co.uk | A | 100 | — | — | TLS1.3 | GlobalSign Atlas R46 DV TLS CA 2026 Q3 | — | 19 d |
| 42 | abebooks.co.uk | A+ | 100 | — | — | TLS1.3 | Amazon RSA 2048 M04 | 123 d | |
| 43 | acas.org.uk | A+ | 100 | — | — | TLS1.3 | Go Daddy Secure Certificate Authority - G2 | 0 d | |
| 44 | aol.co.uk | A+ | 100 | — | — | TLS1.3 | Amazon RSA 2048 M01 | 31 d | |
| 45 | argos.co.uk | A+ | 100 | — | — | TLS1.3 | Sectigo Public Server Authentication CA OV R36 | 0 d | |
| 46 | autocar.co.uk | A+ | 100 | — | — | TLS1.3 | Amazon RSA 2048 M01 | 109 d | |
| 47 | barclays.co.uk | A+ | 100 | — | — | TLS1.3 | DigiCert EV RSA CA G2 | 2 d | |
| 48 | bas.ac.uk | A+ | 100 | — | — | TLS1.3 | Let's Encrypt | 0 d | |
| 49 | bbc.co.uk | A+ | 100 | – | TLS1.3 | GlobalSign GCC R46 OV TLS CA 2025 | 82 d | ||
| 50 | bl.uk | A+ | 100 | — | — | TLS1.3 | GeoTrust TLS RSA CA G1 | 95 d |
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FAQ
How often is the SSL leaderboard updated?
Watched domains are scanned daily; the top-20K leaderboard refreshes full snapshots every Sunday.
How is the SSL grade calculated?
Protocol versions, cipher strength, certificate validity, HSTS and OCSP stapling are weighted into a 0-100 score, mapped to grades from A+ to F.
What does an A+ SSL rating mean?
A near-perfect TLS setup: TLS 1.3 enabled, strong cipher suites, full forward secrecy (PFS) and correctly deployed HSTS.
Methodology
CertH grades each domain via pure TLS handshakes (no server access required): certificate validity, key strength, protocol versions, HSTS and OCSP stapling are weighted into a 0-100 score mapped to six grades from A+ to F. Daily snapshots accumulate into an auditable health trend.
What is an SSL grade?
An SSL grade (A+ through F) evaluates a website's overall TLS configuration: protocol versions, cipher strength, certificate validity and trust chain, HSTS and OCSP stapling. A higher grade means stronger resistance to man-in-the-middle attacks and data breaches.
Why track certificate health over time?
Expired certificates, CA switches and configuration regressions can silently drag a grade down. CertH daily snapshots record those changes so you can spot risk before failures, with auditable history as evidence.
SSL security among United Kingdom websites
This board ranks the Top 100 websites in United Kingdom (generic TLDs attributed by company HQ) by daily TLS health score.