HTTPS Checker

Security Tool

HTTPS, SSL & Security Report for coda.io

This report summarizes how well coda.io is configured for secure web delivery. It covers HTTPS availability, HTTP→HTTPS redirects, TLS/SSL certificate validity, security headers, HTTP/2 and HTTP/3 support, and mixed content. Use it to quickly spot configuration gaps and improve your site's security and trust.

SecureScore100/100Last checked: 15 Apr 2026 at 21:52 UTCRefresh report
HTTPS

Enabled

HTTP → HTTPS

Yes

TLS

A+ · 1.2, 1.3

Security headers

6/6

Detailed checks

HTTPS availability

The site is reachable over HTTPS.

Why it matters: HTTPS encrypts traffic and protects user data.

HTTP to HTTPS redirect

Requests to HTTP are redirected to HTTPS.

TLS & CertificateA+

ValidYes
IssuerC=US, O=Amazon, CN=Amazon RSA 2048 M04
Expires2026-10-08
Days until expiry176 days

Why it matters: A valid, non-expired certificate ensures encryption is trusted by browsers.

No improvements needed — your configuration meets all requirements for A+.

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We'll check SSL grade, HTTPS, redirects, and security headers weekly. Email only when something changes.

for coda.io
Grade breakdownNo improvements needed
100/100 pts
HTTPS Connection
+25/25
HTTP to HTTPS Redirect
+20/20
Valid SSL Certificate
+20/20
Certificate Not Expiring Soon
+10/10
Fast Response Time
+10/10
Short Redirect Chain
+5/5
HSTS Enabled
+5/5
Security Headers
+5/5

No improvements needed — your configuration meets all requirements for A+.

Security headers6/6

  • HSTS
  • CSP
  • X-Frame-Options
  • X-Content-Type-Options
  • Referrer-Policy
  • Permissions-Policy

Score: 6 of 6 headers present. For the grade factor (5 pts), 4+ headers and Content-Security-Policy (CSP) are both required.

Cache-Control includes no-store on the HTML response. Browsers will not cache the document; ETag and conditional requests (304) are effectively disabled. Often intentional for authenticated pages; for public pages consider private with max-age or removing no-store if you want HTTP caching.

HSTS (HTTP Strict Transport Security)Preload ready

  • EnabledYes
  • Max-Age730 days
  • PreloadYes
  • On HSTS preload listYes
Submit or verify on hstspreload.org

Why it matters: HSTS tells browsers to use only HTTPS for this site. Preload allows inclusion in browsers’ built-in HSTS lists.

We check Chromium’s built-in list. hstspreload.org checks eligibility for submission (HSTS header, redirect chain). Results may differ for domains that are preloaded but no longer meet current eligibility rules.

HTTP/2

Negotiated (ALPN h2)

ALPN: h2

HTTP/3 (QUIC)

Advertised

Alt-Svc: h3=":443"; ma=86400

DNS Security

CAA: Configured · DNSSEC: Not signedExpand
CAAConfigured

Allowed issuers: letsencrypt.org, amazon.com, digicert.com, comodoca.com

DNSSEC
Not signed

Mixed content

None detected

No HTTP resources were detected on the HTTPS page.

Redirect chain24ms total

When you visit the site over HTTP, the server may send you through one or more redirects until you land on the final HTTPS URL. Shorter chains are faster and better for SEO.

  1. 1.http://coda.io7ms
  2. 2.https://coda.io/17ms

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