TrustTDK.com

substack.com

Grade B+
https://substack.com/•HTTP 200 (474ms TTFB)•Snapshot 11/11/2026 · 30d Verified Cache
SearchEmbed Badge
77/100

Overall TrustTDK

B+

Weighted composite of Legit Trust, AI/GEO & Authority

100/100

Traffic & Authority

#202

178.6M/mo · Top 1K Global

70/100

AI Search (GEO)

6/6 AI bots · llms.txt Live

68/100

Trust & Legit

TLSv1.3 · 16.5y RDAP

12-Month Traffic History, Engagement & GenAI Acquisition

-31.1% (12M)

Source: SimilarWeb & Tranco Verified · Locked in 30-day cache for zero-latency access

Bounce Rate
46.6%
Pages / Visit
4.10
Avg. Visit Duration
04:12
GenAI Share
0.41%
Monthly Visits (Last 12 Months)
Verified Monthly VisitsRank-Slope Historical Model
166.3M
Dec '25
168.9M
Jan '26
166.6M
Feb '26
169.2M
Mar '26
167M
Apr '26
169.6M
May '26
176.8M
Jun '26
169.9M
Jul '26
175.9M
Aug '26
172.2M
Sep '26
178.6M
Oct '26
114.5M
Nov '26

Traffic Acquisition Channels

~732.5K AI visits/mo
Direct
50.93%
Organic Search
18.49%
Social
12.29%
Email
10.90%
Referrals
6.16%
Paid / Display
0.72%
GenAI Search (ChatGPT / Perplexity / Claude)
0.41%
Affiliates
0.11%

Top Traffic Keywords

substack
Vol: 1.8M/mo · CPC $1.38
$2.3M
sub stack
Vol: 65.7K/mo · CPC $1.38
$65.1K
substack login
Vol: 46.8K/mo · CPC $2.85
$49K
heather cox richardson
Vol: 67.2K/mo · CPC $1.01
$45.8K
nathan fielder
Vol: 2M/mo · CPC $0.00
$36.6K

Top Countries

Rank #106
United States57.3%
United Kingdom7.4%
India4.1%
Canada3.9%
Australia2.5%

Traffic & Global Ranking

Top 1K Global
Est. Monthly Visits
178.6M/mo
SimilarWeb & Tranco Verified
Global Rank
#202
30-day rank movement
Emerging domain (outside Tranco Top 1M daily chart)
Archived Monthly Traffic Snapshots12 mo stored
2025-12: 166.3M
2026-01: 168.9M
2026-02: 166.6M
2026-03: 169.2M
2026-04: 167.0M
2026-05: 169.6M
2026-06: 176.8M
2026-07: 169.9M
2026-08: 175.9M
2026-09: 172.2M
2026-10: 178.6M
2026-11: 114.5M
Hacker News Citations408,841
Badge Impressions0

AI Search & GEO Readiness (70/100)

llms.txt Published
AI Answer Engine Crawler Access (robots.txt)
GPTBot
OpenAI Training & Grounding
allowed
OAI-SearchBot
ChatGPT Search
allowed
ClaudeBot
Anthropic Claude
allowed
PerplexityBot
Perplexity AI Search
allowed
Google-Extended
Google Gemini / AI Overviews
allowed
Applebot-Extended
Apple Intelligence
allowed
/llms.txt Live Preview (18944 bytes)Open file
# Substack

> Substack is a media platform where writers, podcasters, video creators, and media companies build independent businesses around their work. Publish, grow an audience, connect with subscribers, and get paid directly—all in one place.

Substack com...
llms.txt Agent Context File
+25/25

Found /llms.txt (18944 bytes) + /llms-full.txt

AI Search Crawler Access (robots.txt)
+25/25

6/6 major AI search bots allowed (GPTBot, OAI-SearchBot, ClaudeBot, PerplexityBot, Google-Extended, Applebot-Extended)

Schema.org JSON-LD & Entity Graph
+7/20

OpenGraph present, but no <script type="application/ld+json"> Schema.org markup found

Tip: Add Organization / SoftwareApplication / FAQPage JSON-LD schema to boost AI citation confidence.

Semantic Heading Hierarchy & Canonical TDK
+9/15

H1: 0, H2: 0, Title: 8 chars, Desc: 132 chars, Canonical: Yes

Tip: Ensure a single clear <h1>, descriptive <h2> sections, canonical URL, and 50–160 char meta description.

API, Sitemap & Agent Discovery Endpoints
+4/15

Detected: XML Sitemap

Tip: Advertise Sitemap in robots.txt and expose /openapi.json or /.well-known/mcp.json for AI tool agents.

Trust, Security & Merchant Legitimacy (68/100)

TLS & Transport
TLSv1.3
Issuer: Google Trust Services · 37d left
Domain Age (RDAP)
16.5 Years Old
Amazon Registrar, Inc.
Email & Org DNS Proofs
MXSPFDMARC
Google Search Console, Meta Business Verified
Legal & Buyer Policies
PrivacyTermsPricingStatus/SecContact
HTTPS, TLS Certificate & Hardening Headers
TLSv1.3 (Google Trust Services), 37d valid, HSTS enabled
+25/25
Domain Registration Longevity (RDAP)
Registered 16.5 years ago (Amazon Registrar, Inc.)
+20/20
Global Availability & Response Speed
HTTP 200 in 474ms
+13/15
Payment Processor, Email Auth & Infra Trust
SPF · DMARC · 2 Verified DNS TXT
+10/20
Legal Policies, Status & Support Presence
Missing visible Privacy Policy, Terms of Service, or Contact links
+0/20

On-Page SEO TDK & Meta Inspector

Title Tag (8 chars)too short

Substack

Meta Description (132 chars)Optimal

Substack is the app for independent voices: a free newsletter, video, and podcast hosting platform with paid subscriptions built in.

Canonical
Present
HTML Lang
en
Word Count
1,564
Links (Int / Ext)
17 / 0
Heading Structure (H1–H6)
H1:0H2:0H3:1H4:3H5:0H6:0
H3Make money doing the work you believe in
H4You made it, you own it
H4Great discussions
H4Log in or sign up

Detected Tech Stack (1)

Cloudflare
Infrastructure
Structured Entities & Discovery
JSON-LD Blocks0
Images Missing Alt21 / 28
Social ProfilesNone linked
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