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Security Scan Report: substack.com

Redirected to: https://substack.com/home

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Submitted: Nov 27, 2025, 3:20:33 AMCompleted: Nov 27, 2025, 3:23:26 AMpubliccompleted
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Summary

This website contacted 33 IPs in 2 countries across 11 domains to perform 313 HTTP transactions. The main domain is substack.com.

Submitted URL: https://substack.com/

Effective URL: https://substack.com/homeRedirected

The Cisco Umbrella rank of the primary domain is #9,753 of the top 1 million websitesTop 10K Site

AI Security Verdict

Safe Website

Confidence: 95%

0
Risk Score

Site appears legitimate with no security concerns.

Safety Factors
High Cisco Umbrella ranking
Absence of suspicious forms or data collection
Legitimate brand domain with no known malicious activity
Domain age information unavailable

Details

Page Title

Home | Substack

Scan Type

public

Language

🇺🇸

English

(80% confidence)

Category

forum

(70%)

Domain Information

You're looking at domain 'substack.com' on the commercial generic top-level domain (.com) with no subdomain. The core label 'substack' covers 8 characters containing 2 vowels alongside 6 consonants. Splitting it apart reveals two words: sub, stack. Median word length comes out to 4 characters. No strong language cues emerged from the frequency lists.

Screenshot

Security scan screenshot of https://substack.com/

Page Load Overview

1.56s
Total Load Time
313
HTTP Requests
11
Domains
185.7 MB
Total Size

Language Analysis

Primary Language

🇺🇸English
Code: en
Confidence:80%
Script:Latin
Direction:ltr

Detection Details

Language Code:en
Detection Confidence:80%
Script Type:Latin
HTML Lang Attribute:en
Text Length:8,575 chars
Detector Agreement:75%

Website Classification

Primary Category

forum70% confidence
Type: static
Method: structural

All Detected Categories

forum
70%
social_media
50%
news/blog
40%

Detected Features

Comments
OG: article

Domain & IP Information

RequestsIP AddressLocationAS Autonomous System
21565.8.131.35United States
AS16509AMAZON-02
66146.75.122.132Frankfurt am Main, Hesse, Germany
AS54113FASTLY
19104.18.37.200United States
AS13335CLOUDFLARENET
916.15.201.202Ashburn, Virginia, United States
AS14618AMAZON-AES
952.217.37.76Ashburn, Virginia, United States
AS16509AMAZON-02
965.8.131.49United States
AS16509AMAZON-02
965.8.131.71United States
AS16509AMAZON-02
965.8.131.63United States
AS16509AMAZON-02
9172.64.150.56United States
AS13335CLOUDFLARENET
92600:9000:208a:2e00:4:b4b9:d3c0:93a1United States
AS16509AMAZON-02
31333--

Detected Technologies1

Open-Graph-Protocolvarticle
100%

Content Similarity HashesFor malware variant detection

TLSH (Trend Micro Locality Sensitive Hash)

Security-focused

Specialized for malware detection and similarity analysis

T19A74F8B1C562A52F8B038ADCA4BB6F19B0CBC43B8759CA8C7DFC023247C5C9259975B5

ssdeep (Context Triggered Piecewise Hashing)

Context-aware

Detects similar content even with modifications

1536:DwIQA0gjRxxEp13Jbzjo9mYSFI8g95oZ2KLSa66vUZqCn/vwDXGA35qNuEICZ5on:D195oZ2KYsL7GA35qNuEICZUR

sdhash (Similarity Digest Hashing)

High-precision

High-precision similarity detection for forensic analysis

sdhash:3:339945:YODFT3eqJCBGqh9VAdGIJIhJAEoCFhAB2BIIAgSgQOEgIgIgREIMEAJUlsMCwa+JBPZihIYIGMBAyJzsVUs4jFCOqwryEQmA

These hashes enable detection of similar websites and malware variants by comparing content similarity even when exact matches aren't found.

Image Hashes

Perceptual Hashes

Average Hash:ff8181818081ffff
Perceptual Hash:fa4981d2d2856d7a
Difference Hash:803733372921cc0d
Wavelet Hash:ff8181818080ffff
Color Hash:#622d86

Other Hashes

Crop Resistant:803733372921cc0d,d54b6254add4cc69,30b4121a9474e1c9,94d2d09a93929189,673fffdecde523c3,80005029f8d24362

Scan History

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