lennysnewsletter.com
Lenny's Newsletter | Substack
Last scanned Aug 4, 2026, 7:00 PM · 15 views
Overall score
Excellent
Summary
Deeply researched product, growth, and career advice for product leaders, founders, and ambitious builders. This website uses Express hosted on Cloudflare behind Cloudflare CDN. SEO is excellent (90/100) and accessibility is excellent (100/100). Security scores good (85/100) and performance excellent (90/100). Top issue: Meta description longer than 160 characters.
Deeply researched product, growth, and career advice for product leaders, founders, and ambitious builders. Click to read Lenny's Newsletter, a Substack publication with millions of subscribers.
- United States
- Hosted on Cloudflare
Top issues to fix
4 issues found
Missing X-Content-Type-Options header
SecurityAdd X-Content-Type-Options: nosniff to stop MIME-sniffing attacks.
Missing X-Frame-Options header
SecurityAdd X-Frame-Options (or a CSP frame-ancestors rule) to prevent clickjacking via hidden iframes.
Meta description longer than 160 characters
SEOTrim the meta description to under 160 characters to avoid truncation in search results.
Multiple H1 headings found
SEOKeep a single H1 per page and demote the others to H2/H3.
SEO
2 issue(s) found
Performance
337 ms
Security
HTTPS & header checks
Accessibility
0 issue(s) found
Score history
+2 overall since Jul 27, 2026
- Overall
- 91
- SEO
- 90
- Security
- 85
- Performance
- 90
- Accessibility
- 100
Organization
Company details published in this site's own structured data.
Deeply researched product, growth, and career advice for product leaders, founders, and ambitious builders. Click to read Lenny's Newsletter, a Substack publication with millions of subscribers.
Meta tags
- Title
- Lenny's Newsletter | Substack
- Description
- Deeply researched product, growth, and career advice for product leaders, founders, and ambitious builders. Click to read Lenny's Newsletter, a Substack publication with millions of subscribers.
- Canonical
- https://www.lennysnewsletter.com/
- Language
- en
- Charset
- utf-8
- Viewport
- width=device-width, initial-scale=1, maximum-scale=1, user-scalable=0, viewport-fit=cover
- Robots meta
- Manifest
Technologies
Detected frameworks, languages, and tools.
Hosting & CDN
- Hosting provider
- Cloudflare
- CDN provider
- Cloudflare
- IP address
- 104.21.38.198
- ASN
- AS13335 (CLOUDFLARENET - Cloudflare, Inc., US)
DNS records
| Type | Value |
|---|---|
| A |
|
| AAAA |
|
| MX | — |
| TXT | — |
| NS | — |
| CAA | — |
| CNAME | — |
| IPv6 support | Yes |
TLS / SSL certificate
- Version
- TLS 1.3
- Issuer
- Google Trust Services
- Subject
- www.lennysnewsletter.com
- Valid from
- Jul 1, 2026
- Valid to
- Sep 29, 2026
- Days until expiry
- 55
- SAN domains
- www.lennysnewsletter.com
Security headers
- Strict-Transport-SecurityEnabled
- Content-Security-PolicyEnabled
- X-Frame-OptionsMissing
- X-Content-Type-OptionsMissing
- Referrer-PolicyMissing
- Permissions-PolicyMissing
Compression: gzip · 3 cookie(s) observed
Content & assets
Headings
H1 2 · H2 0 · H3 0
Links
24 internal · 13 external · 0 broken
Images
20 total · 2 missing alt
Scripts / Styles
109 scripts · 21 stylesheets
JS / CSS size
620 KB · 760 KB
Page size
126 KB
Robots.txt & Sitemap
- robots.txt
- Found
- Disallow rules
- 15
- sitemap.xml
- Found
- URLs in sitemap
- 1220
SEO issues
- Meta description longer than 160 characters
- Multiple H1 headings found
Accessibility issues
No accessibility issues detected.
Scan details
- Requested URL
- https://lennysnewsletter.com
- Final URL
- https://www.lennysnewsletter.com
- HTTP status
- 200
- HTTP version
- HTTP/2
- Response time
- 335 ms
- HTML size
- 126 KB
- Redirect chain
- https://lennysnewsletter.com → https://www.lennysnewsletter.com
See something wrong on this report? Request a correction
Related websites
Same technology stack
pillarcatholic.com
The Pillar
slowboring.com
Slow Boring | Matthew Yglesias | Substack
okfit.in
Best Gym Management Software with Smart Automation - Okfit
lettersofnote.com
Letters of Note | Shaun Usher | Substack
foreigndekho.com
Best Trusted Visa Refusal Help | 190+ Countries | ForeignDekho - India's #1 Visa Consultancy
gamefile.news
Game File | Stephen Totilo | Substack
Same hosting provider
karinderya.org
Karinderya Wiki & Guides — Codes, Workers & Updates
logiclinkrepair.com
Logic Link Repair | PC, Mac & Phone Repair in Kalispell, MT
herodash.ai
AI Customer Service Platform for Global Teams | HeroDash
emplifyhealth.org
Emplify Health | A Little Empathy Changes Everything
nudeclap.com
Naked Girls Porn: Free HD Nude Sex Videos
rbj.net
Rochester Business Journal
Frequently asked questions
- What technology does lennysnewsletter.com use?
- lennysnewsletter.com is built with Express, Node.js, Google Analytics, Cloudflare Analytics, Google Ads.
- Is lennysnewsletter.com secure (HTTPS)?
- Yes. lennysnewsletter.com uses TLS 1.3 with a certificate issued by Google Trust Services, valid until Sep 29, 2026.
- Who hosts lennysnewsletter.com?
- lennysnewsletter.com is hosted on Cloudflare, behind Cloudflare CDN.
- What is lennysnewsletter.com's SEO score?
- lennysnewsletter.com scored 90/100 for SEO in the latest analysis (excellent).
- What is lennysnewsletter.com's overall website score?
- lennysnewsletter.com has an overall SiteGraph score of 91/100, combining SEO, performance, security, and accessibility.
- Has lennysnewsletter.com's score changed over time?
- lennysnewsletter.com's overall score has improved by 2 points (from 89 to 91) since Jul 27, 2026.
OpenGraph & Twitter Card
OpenGraph
Twitter Card