Link Check results for clerk.com

No Security Risks Detected

This domain appears to be safe and secure

100%

Score

Disclaimer: This assessment is based on automated analysis of publicly available information. Results are for informational purposes only. For critical applications, consult security professionals.

Scan Information

Last checked:March 27, 2026 01:20:25

Target URL:https://clerk.com/user-authentication?utm_source=google&utm_medium=cpc&utm_campaign=SC_Google_Search_Brand_US&utm_adgroup=Brand&utm_term=clerk&gad_source=1&gad_campaignid=23228885679&gbraid=0AAAAAqJUiX4tTnZ1Xwd_TfORfK-hiYtqU&gclid=CjwKCAjwspPOBhB9EiwATFbi5F55cvvKceZuJvtJdcqTZL7pTdmuqpdV2-DZE-CQ9vo3Sr1HQWmjSRoCRoIQAvD_BwE

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Page Information

Target URL

https://clerk.com/user-authentication?utm_source=google&utm_medium=cpc&utm_campaign=SC_Google_Search_Brand_US&utm_adgroup=Brand&utm_term=clerk&gad_source=1&gad_campaignid=23228885679&gbraid=0AAAAAqJUiX4tTnZ1Xwd_TfORfK-hiYtqU&gclid=CjwKCAjwspPOBhB9EiwATFbi5F55cvvKceZuJvtJdcqTZL7pTdmuqpdV2-DZE-CQ9vo3Sr1HQWmjSRoCRoIQAvD_BwE

Page Title

User Authentication

Site Favicon

Status

Active

Host Information

Domain

clerk.com

Server

Vercel

Country

United States

IP Address

76.76.21.21

ASN Information

16509

AMAZON-02

Technologies

Envoy

Reverse proxies

Vercel

PaaS

React

JavaScript frameworks

Twitter Ads

Advertising

Linkedin Insight Tag

Analytics

HSTS

Security

+2 more technologies detected

SSL Certificate

HTTPS Enabled

Secure

Certificate Issuer

N/A

Valid From

2026-03-26 01:20:30

Valid Until

2027-03-27 01:20:30

Subject Name

clerk.com

Performance Statistics

151

Total Requests

Domains

IP Addresses

2.68 MB

Transfer Size

Content Size8.54 MB

HTTP Headers

Access-Control-Allow-Origin

Age

7918

Cache-Control

public, max-age=0, must-revalidate

Content-Disposition

inline

Content-Encoding

Content-Type

text/html; charset=utf-8

Date

Fri, 27 Mar 2026 01:20:30 GMT

Etag

W/"d15a21405c74a4086e84f049c73b702f"

Referrer-Policy

same-origin

Server

Vercel

Strict-Transport-Security

max-age=63072000

Transfer-Encoding

chunked

Vary

rsc, next-router-state-tree, next-router-prefetch, next-router-segment-prefetch

X-Clerk-Auth-Reason

session-token-and-uat-missing

X-Clerk-Auth-Status

signed-out

X-Content-Type-Options

nosniff

X-Download-Options

noopen

X-Frame-Options

deny

X-Generated-Visitor-Id

45c0fb55-9a0b-4418-9845-2e155b34e936

X-Matched-Path

/user-authentication

X-Nextjs-Prerender

X-Nextjs-Stale-Time

300

X-Vercel-Cache

HIT

X-Vercel-Id

pdx1::nv6c9-1774574430443-d3fe0545613f

X-Xss-Protection

25 headers detected

Technology Stack Analysis

Envoy

Reverse proxies

Envoy is an open-source edge and service proxy, designed for cloud-native applications.

Vercel

PaaS

Vercel is a cloud platform for static frontends and serverless functions.

React

JavaScript frameworks

React is an open-source JavaScript library for building user interfaces or UI components.

Twitter Ads

Advertising

Twitter Ads is an advertising platform for Twitter 'microblogging' system.

Linkedin Insight Tag

Analytics

LinkedIn Insight Tag is a lightweight JavaScript tag that powers conversion tracking, website audiences, and website demographics.

HSTS

Security

HTTP Strict Transport Security (HSTS) informs browsers that the site should only be accessed using HTTPS.

Google Analytics

Analytics

Google Analytics is a free web analytics service that tracks and reports website traffic.

Cloudflare

Expires:6/25/2026

_twpid

.clerk.com

Secure Strict

Value

tw.1774574434276.452185491694196255

Expires:4/21/2027

__hstc

.clerk.com

.clerk.com

Secure Lax

Value

%7B%22distinct_id%22%3A%2245c0fb55-9a0b-4418-9845-2e155b34e936%22%2C%22%24sesid%22%3A%5B1774574433005%2C%22019d2ce0-f2e9-7416-a4c1-0acb8fd8f5ca%22%2C1774574433000%5D%7D

Expires:3/27/2027

ajs_anonymous_id

.clerk.com

Lax

Value

099c24e3-a98e-4b71-9cf6-4dbee333b670

Expires:3/27/2027

External Links 4

X

twitter.com

Analyze

Target URL

https://twitter.com/clerk

www.linkedin.com

Analyze

Target URL

https://www.linkedin.com/company/clerkinc

GitHub

github.com

Analyze

Target URL

https://github.com/clerk

YouTube

www.youtube.com

Analyze

Target URL

https://www.youtube.com/@clerkdev

Requested Domains 22

analytics.twitter.com

Unknown Type

No category information available

cdn.segment.com

Unknown Type

No category information available

Unknown Type

No category information available

www.googletagmanager.com

Unknown Type

No category information available