CertH certH

harvard.edu Skor SSL & laporan kesehatan TLS

A 98/100
View the in-depth report on SSL Labs
Penerbit
Let's Encrypt
TLS maks.
TLS1.3
Versi TLS
TLS 1.3 TLS 1.2 TLS 1.1 TLS 1.0
Cipher
ECDHE-ECDSA-AES128-GCM-SHA256
Kedaluwarsa
12/9/2026 ( 33 hr)
HSTS
Nonaktif
OCSP Stapling
Nonaktif
Terakhir dipindai
11/4/2026, 11:20:19 AM

Why is the score low?

A · 98/100
  • -2
    Certificate chain too long
    Optimize the chain; remove extra intermediate certificates
Alat SSL Pemeriksa Sertifikat Pelacak handshake SSL Pencarian Certificate Transparency

Ringkasan laporan

harvard.edu currently holds an SSL grade of A (98/100) from CertH TLS health monitoring. The site supports TLS1.3, TLS1.2, does not enable HSTS, and its certificate is issued by Let's Encrypt — 33 days left on the certificate. CertH records daily TLS handshake probes into an auditable certificate health trend.

Baik — Keamanan solid dengan hanya masalah kecil — misalnya tanpa HSTS preload atau belum memanfaatkan TLS 1.3 sepenuhnya. Nilai yang umum direkomendasikan.

harvard.edu mendapat skor lebih tinggi dari 68% dari 12,269 situs yang dinilai.

Persentil dihitung dari 12,269 situs yang diindeks CertH (termasuk yang belum dinilai), bukan sensus industri.

Terakhir dipindai 2 hari lalu — data mungkin sudah usang

Detail sertifikat & konfigurasi lengkap

Common Name
harvard.edu
Kunci
ec 256bit
Hash tanda tangan
SHA-384
Rantai
Lengkap
SAN
harvard.edu · www.harvard.edu
Sidik jari
2d19108f6b105a77a5d67d49bc94cf1f0acff4e162a9a9be6846490198e8e443
Variabel penjelas
CAA
Tidak ada (CA mana pun dapat menerbitkan)
CT SCT
2
Must-Staple
✗
HSTS preloadable
✗
Penanda risiko
Tidak ada risiko berarti

Yang sudah baik

  • TLS 1.3 aktif
  • Rantai sertifikat lengkap
  • Tanpa TLS lama atau cipher lemah

Tren skor

02550751009/8/2026, 1:37:58 PM · 77 (C)9/9/2026, 8:11:45 PM · 90 (A)9/17/2026, 3:23:27 AM · 98 (A)9/17/2026, 3:24:14 AM · 98 (A)9/25/2026, 3:23:02 AM · 93 (A)9/25/2026, 3:23:47 AM · 93 (A)10/2/2026, 3:23:12 AM · 98 (A)10/2/2026, 3:23:57 AM · 98 (A)10/9/2026, 3:23:39 AM · 98 (A)10/9/2026, 3:24:24 AM · 98 (A)10/17/2026, 3:23:40 AM · 93 (A)10/17/2026, 3:24:23 AM · 93 (A)10/25/2026, 3:23:31 AM · 98 (A)10/25/2026, 3:24:16 AM · 98 (A)11/1/2026, 3:23:58 AM · 98 (A)11/1/2026, 3:24:43 AM · 98 (A)11/4/2026, 11:20:19 AM · 98 (A)

Riwayat terbaru

WaktuNilai SkorPenerbit
11/4/2026, 11:20:19 AMA98Let's Encrypt
11/1/2026, 3:24:43 AMA98Let's Encrypt
11/1/2026, 3:23:58 AMA98Let's Encrypt
10/25/2026, 3:24:16 AMA98Let's Encrypt
10/25/2026, 3:23:31 AMA98Let's Encrypt
10/17/2026, 3:24:23 AMA93Let's Encrypt
10/17/2026, 3:23:40 AMA93Let's Encrypt
10/9/2026, 3:24:24 AMA98Let's Encrypt
10/9/2026, 3:23:39 AMA98Let's Encrypt
10/2/2026, 3:23:57 AMA98Let's Encrypt
10/2/2026, 3:23:12 AMA98Let's Encrypt
9/25/2026, 3:23:47 AMA93Let's Encrypt
9/25/2026, 3:23:02 AMA93Let's Encrypt
9/17/2026, 3:24:14 AMA98Let's Encrypt
9/17/2026, 3:23:27 AMA98Let's Encrypt
9/9/2026, 8:11:45 PMA90Let's Encrypt
9/8/2026, 1:37:58 PMC77Let's Encrypt

Score change insights · Last 90 days

Net change ↑ +21
  • ↑
    9/9/2026 +13 C → A
    Config scoring adjustment
  • ↑
    9/17/2026 +8
    CA changed
  • ↑
    10/25/2026 +5
    TLS version support improved
  • ↓
    10/17/2026 -5
    TLS version support regressed
  • ↑
    10/2/2026 +5
    TLS version support improved
  • ↓
    9/25/2026 -5
    TLS version support regressed

Tanya jawab

Kapan sertifikat harvard.edu kedaluwarsa?

Sertifikat harvard.edu kedaluwarsa pada 12/9/2026, dalam 33 hari, diterbitkan oleh Let's Encrypt.

Apakah konfigurasi TLS harvard.edu aman?

harvard.edu saat ini A (98/100), menegosiasikan TLS1.3, TLS1.2 dan does not enable HSTS.

Mengapa skor harvard.edu berubah?

9/9/2026: +13 poin — Config scoring adjustment