HTTPS
You might say
My browser says the site isn't secure. How do I get that lock icon in the address bar?
Encrypt the connection between the browser and the websiteHTTPS is HTTP protected by TLS. It helps prevent other parties on the network from reading or changing the traffic and lets the browser verify the server's certificate. It does not make unsafe application code or stolen passwords secure by itself.
You can say this to an AI Agent
Audit login HTTPS: confirm the certificate covers the domain and is valid, redirect HTTP to HTTPS, and remove HTTP from scripts, images, and APIs. Recheck browser security and mixed-content errors without describing the lock as business verification.
When to use it
- Protect every public websiteForce HTTPSCertificate issued automatically by the platform (Let’s Encrypt)
- Send account and payment data🔒vibeui.devEncrypts the connection and verifies that the certificate matches the current domain.
- Use browser features that require a secure context<img src="https://cdn.vibeui.dev/a.png">If the page is HTTPS, every asset should be HTTPS too.
- Verify the domain presented by a server🔒••••••••The password travels through an encrypted channel.
When NOT to use it
- Assume HTTPS prevents every kind of attackNot securehttp://old-site.comThe browser warns that the connection is unencrypted, so users cannot verify that data is protected.
- Load insecure resources inside a secure page<img src="http://…">Mixed content, blocked by the browser
- Ignore certificate renewalCertificate expired 14 days agoThe browser displays a certificate warning and may stop users from proceeding.
- Send secrets to the wrong server just because the connection is encrypted⚠ Your connection is not privateContinue anyway (unsafe)
Anatomy
CertificateLet's EncryptValid until 2026-10
The browser's status prompt for the current TLS connection and certificate is not an endorsement of the website's reputation.
The certificate binds the domain name public key to the issuance information; common DV certificates only verify domain name control rights, and automatic issuance also needs to be configured correctly
TLS protects transmissions with encryption and integrity checks; the end device or website itself may still be at risk
Variants
Domain Validated
🔒 vibeui.dev DV
Only verify the domain name, the hosting platform will automatically sign it for free
Organization Validated
🔒 bank.example OV
Additional verification of corporate identity, commonly used in banking and government affairs
Typical use cases
Website connection
🔒
vibeui.dev
The connection is secure
The information you transmit to and from this website is encrypted
Awarded tovibeui.dev
Issued byLet's Encrypt
Valid until2026-10-18
Login
Domain name vibeui.dev
HTTPS enabled
SSL Certificate
Let's Encrypt · Automatic renewal
Force HTTPS
Automatic renewal next time
2026-09-18
Payment
⚠️
Your connection is not private
Attackers may try to steal your information
(such as passwords, communications, or credit card information) from old-site.com
(such as passwords, communications, or credit card information) from old-site.com
API request
🔒
vibeui.dev
Console
✕ Mixed Content: This page is loaded via HTTPS,
But an unsafe image http://img.old.com/a.png was requested,
The request has been blocked.
→ Change the image address to https://
Recommended tool
Web fine-tuning tool · Selector Pro
Select page elements for precise AI edits
Click a button, text, or card, note the change, then copy its exact location to AI.
Open Selector Pro website↗Further reading
Quick check