Link Check results for johnsimpson.io

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:April 4, 2026 04:40:44

Target URL:https://johnsimpson.io/

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Page Information

Target URL

https://johnsimpson.io/

Page Title

John Simpson | Fintech Expert. AI Practitioner.

Site Favicon

Status

Active

Host Information

Domain

johnsimpson.io

Server

GitHub.com

Country

United States

IP Address

185.199.109.153

ASN Information

54113

FASTLY

Technologies

Varnish

Caching

Tailwind CSS

UI frameworks

GitHub Pages

PaaS

Fastly

CDN

SSL Certificate

HTTPS Enabled

Secure

Certificate Issuer

N/A

Valid From

2026-04-03 04:40:48

Valid Until

2027-04-04 04:40:48

Subject Name

johnsimpson.io

Performance Statistics

Total Requests

Domains

IP Addresses

162.65 KB

Transfer Size

Content Size560.86 KB

HTTP Headers

Accept-Ranges

bytes

Access-Control-Allow-Origin

Age

Cache-Control

max-age=600

Connection

keep-alive

Content-Encoding

gzip

Content-Length

10170

Content-Type

text/html; charset=utf-8

Date

Sat, 04 Apr 2026 04:40:48 GMT

ETag

W/"69c801c1-b804"

Last-Modified

Sat, 28 Mar 2026 16:28:49 GMT

Server

GitHub.com

Vary

Accept-Encoding

Via

1.1 varnish

X-Cache

MISS

X-Cache-Hits

X-Fastly-Request-ID

66740dc82766372c4286f2526f57e65391d28ef4

X-GitHub-Request-Id

3558:4F378:84A717:87FE60:69D0964F

X-Served-By

cache-lax-kwhp1940090-LAX

X-Timer

S1775277648.232623,VS0,VE110

expires

Sat, 04 Apr 2026 04:50:48 GMT

x-proxy-cache

MISS

22 headers detected

Technology Stack Analysis

Varnish

Caching

Varnish is a reverse caching proxy.

Tailwind CSS

UI frameworks

Tailwind is a utility-first CSS framework.

GitHub Pages

PaaS

GitHub Pages is a static site hosting service.

Fastly

CDN

Fastly is a cloud computing services provider. Fastly's cloud platform provides a content delivery network, Internet security services, load balancing, and video & streaming services.

External Links 2

Transaction Data AnalyzerPython CLI tool for analyzing payment transaction data including auth rates, declines, chargebacks, and volume metrics.

github.com

Analyze

Target URL

https://github.com/jesimpsonjr-prodmgmt

LinkedIn Profile

www.linkedin.com

Analyze

Target URL

https://www.linkedin.com/in/johnsjr