支持 A 评级的网站（2026）
扫描自 20,000 个全球热门域名 · 更新于 2026-11-07
12,269收录域名
32%A+ 占比 (3944)
94.8平均分
↑ 115本月改善域名
| # | 域名 | 等级 | 分数 | 30 天趋势 | 涨跌 | TLS | 签发机构 | HSTS | 到期 |
|---|---|---|---|---|---|---|---|---|---|
| 3401 | upenn.edu | A | 100 | — | – | TLS1.3 | Let's Encrypt | 60 天 | |
| 3402 | upgradedpoints.com | A | 100 | — | – | TLS1.3 | Let's Encrypt | 82 天 | |
| 3403 | uploading.com | A | 100 | — | – | TLS1.3 | Let's Encrypt | — | 46 天 |
| 3404 | upyun.com | A | 100 | — | – | TLS1.3 | GeoTrust G2 TLS CN RSA4096 SHA256 2022 CA1 | — | 161 天 |
| 3405 | uqam.ca | A | 100 | — | – | TLS1.3 | Amazon RSA 2048 M04 | — | 159 天 |
| 3406 | uquebec.ca | A | 100 | — | – | TLS1.3 | DigiCert Global G2 TLS RSA SHA256 2020 CA1 | — | 133 天 |
| 3407 | urbanoutfitters.com | A | 100 | — | – | TLS1.3 | Google Trust Services | — | 48 天 |
| 3408 | uregina.ca | A | 100 | — | – | TLS1.3 | Let's Encrypt | — | 59 天 |
| 3409 | urfu.ru | A | 100 | — | – | TLS1.3 | GlobalSign GCC R3 DV TLS CA 2020 | — | 65 天 |
| 3410 | uri.edu | A | 100 | — | – | TLS1.3 | Let's Encrypt | 86 天 | |
| 3411 | uriweb.kr | A | 100 | — | – | TLS1.3 | Amazon RSA 2048 M04 | — | 152 天 |
| 3412 | urldefense.com | A | 100 | — | – | TLS1.3 | Sectigo Public Server Authentication CA OV R36 | — | 143 天 |
| 3413 | urologyhealth.org | A | 100 | — | – | TLS1.3 | Starfield TLS Intermediate CA DV - R1v1 | — | 68 天 |
| 3414 | urssaf.fr | A | 100 | — | – | TLS1.3 | GeoTrust TLS RSA CA G1 | — | 161 天 |
| 3415 | us.com | A | 100 | — | – | TLS1.3 | Let's Encrypt | — | 44 天 |
| 3416 | us.org | A | 100 | — | – | TLS1.3 | Let's Encrypt | — | 46 天 |
| 3417 | usability.gov | A | 100 | — | – | TLS1.3 | Let's Encrypt | — | 87 天 |
| 3418 | usal.es | A | 100 | — | – | TLS1.3 | GEANT TLS RSA 1 | — | 169 天 |
| 3419 | usanetwork.com | A | 100 | — | – | TLS1.3 | DigiCert Global G3 TLS ECC SHA384 2020 CA1 | 63 天 | |
| 3420 | usbank.com | A | 100 | — | – | TLS1.3 | DigiCert Global G2 TLS RSA SHA256 2020 CA1 | — | 183 天 |
| 3421 | usc.edu | A | 100 | — | – | TLS1.3 | Let's Encrypt | 67 天 | |
| 3422 | usccb.org | A | 100 | — | – | TLS1.3 | Let's Encrypt | 73 天 | |
| 3423 | usd.edu | A | 100 | — | – | TLS1.3 | GeoTrust TLS RSA CA G1 | — | 128 天 |
| 3424 | usdebtclock.org | A | 100 | — | – | TLS1.3 | Let's Encrypt | — | 58 天 |
| 3425 | userapi.com | A | 100 | — | – | TLS1.3 | HARICA DV TLS RSA | — | 93 天 |
| 3426 | usercontent.one | A | 100 | — | – | TLS1.3 | Let's Encrypt | — | 65 天 |
| 3427 | userway.org | A | 100 | — | – | TLS1.3 | Amazon RSA 2048 M01 | — | 120 天 |
| 3428 | usfca.edu | A | 100 | — | – | TLS1.3 | Let's Encrypt | 46 天 | |
| 3429 | usi.ch | A | 100 | — | – | TLS1.3 | Let's Encrypt | — | 50 天 |
| 3430 | usma.edu | A | 100 | — | – | TLS1.3 | DigiCert Global G2 TLS RSA SHA256 2020 CA1 | — | 112 天 |
| 3431 | ustraveldocs.com | A | 100 | — | – | TLS1.3 | Amazon RSA 2048 M01 | — | 122 天 |
| 3432 | ustream.tv | A | 100 | — | – | TLS1.3 | DigiCert EV RSA CA G2 | — | 107 天 |
| 3433 | usyd.edu.au | A | 100 | — | – | TLS1.3 | DigiCert Global G2 TLS RSA SHA256 2020 CA1 | — | 75 天 |
| 3434 | uta.fi | A | 100 | — | – | TLS1.3 | GEANT TLS RSA 1 | — | 184 天 |
| 3435 | utexas.edu | A | 100 | — | – | TLS1.3 | Let's Encrypt | — | 54 天 |
| 3436 | uth.gr | A | 100 | — | – | TLS1.3 | GEANT TLS RSA 1 | — | 97 天 |
| 3437 | utm.edu | A | 100 | — | – | TLS1.3 | Amazon RSA 2048 M01 | — | 131 天 |
| 3438 | utro.ru | A | 100 | — | – | TLS1.3 | Let's Encrypt | — | 81 天 |
| 3439 | utsandiego.com | A | 100 | — | – | TLS1.3 | Google Trust Services | — | 38 天 |
| 3440 | uvigo.es | A | 100 | — | — | TLS1.3 | GEANT TLS RSA 1 | — | 11 天 |
| 3441 | uvm.edu | A | 100 | — | – | TLS1.3 | InCommon RSA OV SSL CA 3 | — | 83 天 |
| 3442 | uvt.nl | A | 100 | — | – | TLS1.3 | GEANT TLS RSA 1 | — | 182 天 |
| 3443 | uwec.edu | A | 100 | — | – | TLS1.3 | Let's Encrypt | 41 天 | |
| 3444 | uwindsor.ca | A | 100 | — | – | TLS1.3 | DigiCert Global G2 TLS RSA SHA256 2020 CA1 | — | 125 天 |
| 3445 | uzh.ch | A | 100 | — | – | TLS1.3 | Let's Encrypt | — | 38 天 |
| 3446 | v0.dev | A | 100 | — | – | TLS1.3 | Let's Encrypt | — | 72 天 |
| 3447 | vagrantup.com | A | 100 | — | – | TLS1.3 | Let's Encrypt | — | 47 天 |
| 3448 | valentino.com | A | 100 | — | – | TLS1.3 | GeoTrust TLS RSA CA G1 | 135 天 | |
| 3449 | valvesoftware.com | A | 100 | — | – | TLS1.3 | Let's Encrypt | — | 74 天 |
| 3450 | vanderbilt.edu | A | 100 | — | – | TLS1.3 | Amazon RSA 2048 M01 | — | 124 天 |
追踪你域名的评分变化
免费注册监控台，关注域名并在评分下降时第一时间收到告警。
常见问题
如何获得 A+ 评级？
启用 TLS 1.3 与强加密套件、确保完全前向保密（PFS）、正确部署 HSTS，并使用可信 CA 签发的有效证书。
证书有效但评分不高是为什么？
评分评估的是整体 TLS 配置：旧协议版本、弱加密套件或缺少 HSTS 都会扣分。