SSL Certificate Checker: How to Monitor SSL Expiry for Free

SSL Certificate Checker: Never Miss an Expiry Date Again

An expired SSL certificate is one of the most embarrassing things that can happen to a website. Your users see "Your connection is not private." Your SEO tanks. Your conversion rate drops to zero.

And it happens all the time — because most people don't check their expiry dates. They set it and forget it, until 3 AM when the certificate lapses and Google flags the site.

How PingSage's Free SSL Checker Works

Every time PingSage checks your site, it also checks the SSL certificate:

1. We connect to your HTTPS port (443)

2. We read the certificate's notAfter date

3. We calculate days remaining

4. We alert you at 30 days, 14 days, and 7 days before expiry

5. We store the issuer, subject, and validity dates for your records

Manual SSL Check (Quick)

If you just want to check one certificate right now:

# OpenSSL (Linux/Mac)
echo | openssl s_client -connect example.com:443 -servername example.com 2>/dev/null | openssl x509 -noout -enddate

# cURL
curl -v https://example.com 2>&1 | grep -i "expire date"

But manual checks don't scale. If you have 5, 10, or 50 domains, you need automated monitoring.

What PingSage Shows You

In the SSL tab of your dashboard:

• ✅ Days remaining — color-coded (green >30d, yellow 14-30d, red <14d)
• ✅ Issuer — who issued the cert (Let's Encrypt, DigiCert, etc.)
• ✅ Subject — which domain it covers
• ✅ Expiry date — exact date it expires
• ✅ History — track when certs were reissued
• ✅ Re-check button — trigger a fresh check anytime

Why This Matters

| Scenario | Cost of Expired SSL |

|----------|-------------------|

| E-commerce site | Lost revenue during downtime |

| SaaS app | User trust destroyed |

| Agency client site | Client fires you |

| Personal blog | Embarrassment + SEO loss |

None of that needs to happen. With PingSage's free SSL monitoring, you get an email/Slack/Discord alert weeks before expiry — plenty of time to renew.

Add SSL Monitoring in 30 Seconds

1. Create a PingSage account (free, no credit card)

2. Add your site — make sure "SSL Check" is enabled (default: on)

3. Add an alert channel (email, Slack, Discord, etc.)

4. Done — you'll get alerts at 30/14/7 days before expiry

---

PingSage monitors 50+ cert checks daily. Join for free. 🍃