Analysis for

clerk.com favicon clerk.com

95
Flare Score
Safe

FlareAI™ Summary

Clerk.com simplifies authentication and user management for modern web applications, particularly those using React, Next.js, and Remix. Security indicators are strong: a valid SSL certificate from Let's Encrypt secures data, and the domain has a long-standing history of nearly 30 years. Google Safe Browsing status is clean. Blacklist checks are clear, indicating a trusted domain. With a FlareScore of 95/100, clerk.com presents a safe and reliable service for developers.

+17.4%
than category average
United States
Server Country
29 years
Domain Age

Score Breakdown

How we calculated the Flare Score based on positive and negative signals.

Positive Signals

Valid SSL certificate from Let's Encrypt
Established domain (29+ years old)
WHOIS information publicly available
Registered with reputable registrar (Register.com - Network Solutions, LLC)
Not found on any blacklist (1 sources checked)
Strong email security (SPF, DKIM, DMARC configured)
Privacy policy present
Good website performance
Active social media presence
Contact information available

Negative Signals

Pro Tip: A valid SSL certificate is a basic requirement for any trustworthy site, but it doesn't guarantee the site is not a scam.

SSL & Security

SSL certificate and security headers configuration

Security Score
80/100
✓ Valid SSL (40) ✓ HSTS (20) ✗ CSP (20) ✓ X-Frame (20)

SSL Certificate

Issuer
Let's Encrypt
Valid From
Jan 07, 2026
Valid Until
Apr 07, 2026
34 days remaining

Security Headers

HSTS
X-Frame-Options

How Was This Calculated?

Transparency into our FlareScore™ methodology and data sources used for this analysis.

clerk.com Analysis

FlareScore™: 95/100 (Safe Risk)

Our analysis of clerk.com identified 10 positive security indicators and 0 potential concerns. The FlareScore™ rating combines technical security measures, domain reputation, and content analysis.

SSL Certificate Analysis
Domain Age: 29 years 11 months
AI Content Review
17 DNS Records
Analysis Sources
  • • WHOIS: Register.com - Network Solutions, LLC
  • • SSL: Let's Encrypt
  • • DNS: 17 records analyzed
  • • Content: Visual & text analysis
Last Checked

Feb 05, 2026
3 weeks ago

Transparency Note: Our analysis is based on publicly available data and automated scanning. For detailed methodology and accuracy metrics, visit our methodology page.

Domain & WHOIS Information

Domain Age
29 years 11 months
Registered Apr 10, 1996
Very High Trust
Apr 1996 Expires Apr 2033
Established domain (5+ years) - High trust indicator
Registrar
Register.com - Network Solutions
Registration Date
Apr 10, 1996 (29 years ago)
Last Updated
Sep 12, 2024
Expiration Date
Apr 11, 2033 (2594 days remaining)
Server Location
United States

DNS Configuration

Domain Name System records and email security configuration

Email Security
SPF
DKIM
DMARC
Basic
1
A
5
MX
6
TXT
4
NS

HTTP Headers

Key server response headers for security analysis.

Security (5)
Referrer Policy
HSTS
MIME Sniffing Protection
Clickjacking Protection
XSS Filter
Web Server
Vercel
Cache Policy
public, max-age=0, m...

IP Geolocation

Server location and network information

United States
United States
Walnut
IP Address
76.76.21.21
ISP / Hosting
Amazon.com, Inc.
Coordinates
34.0233, -117.8512
Country Code
US

Email Configuration

Email security and authentication records (SPF, DKIM, DMARC).

Performance Metrics

Website loading speed and performance analysis

85
Average
Load Time
0.09s
Excellent
Page Size
0.72MB
Optimized
Requests
266
Many
Overall
85/100
Performance score

Good performance, but there's room for optimization to improve loading speed.

Blacklist Check

Checking if this domain is listed on major security blacklists.

Google Safe Browsing
Safe

Discovered Subdomains

Publicly accessible subdomains associated with this domain.

www.clerk.com
api.clerk.com
images.clerk.com
img.clerk.com

Privacy & Trackers

0 Trackers Found
Privacy Policy

Website Screenshot

clerk.com screenshot

In-Depth Analysis

Overview

Clerk.com provides authentication and user management solutions, particularly tailored for modern web frameworks like React, Next.js, and Remix. They aim to simplify the process of integrating user authentication into web applications.

Security Assessment

Clerk.com exhibits a strong security posture. The website utilizes a valid SSL certificate issued by Let's Encrypt, ensuring encrypted communication. The domain has a substantial age of nearly 30 years, indicating stability and trustworthiness. Crucially, Google Safe Browsing reports a CLEAN status, a strong positive signal that the site is not distributing malware or engaging in phishing activities. The hosting infrastructure is provided by Amazon.com, Inc., a reputable provider.

Trust Level

With a FlareScore of 95/100, Clerk.com presents a very low risk to users. This high score reflects the positive security indicators, including the valid SSL certificate, long domain age, and the CLEAN Google Safe Browsing status.

Recommendations

Users can generally trust Clerk.com. The presence of a privacy policy is a positive sign. While the site appears safe, it is still recommended to practice good security habits: use strong, unique passwords if creating an account (even though the data does not show the site has a login), and be cautious of any unexpected emails or requests.

User Reviews and Complaints

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