What powers lennysjobs.com?

Last seen Sep 2026 · 16 technologies across 8 categories

Analytics

Google Analytics
since Jul 2026

Authentication

Clerk
since Jul 2026

CDN

Cloudflare
since Oct 2024
jsDelivr
since Jul 2026

JavaScript frameworks

Next.js v16.2.9
since Mar 2022
React
since Mar 2022

Miscellaneous

HTTP/3
since Nov 2024
Open Graph
since Sep 2022
PWA
since Aug 2022
Webpack
since Mar 2022

Programming languages

Node.js
since Mar 2022

Security

Cloudflare Bot Management
since Oct 2024
HSTS
since Sep 2022

UI frameworks

Radix UI
since Jul 2026
Tailwind CSS
since Apr 2022

AI Crawlers

Blocks 6 of 33 AI crawlers we track by name in its robots.txt. Checked Sep 2026.

Training crawlers

  • CCBot Blocked
  • ClaudeBot Blocked
  • Google-Extended Blocked
  • GPTBot Blocked

Search and AI assistants

  • Applebot Blocked
  • PerplexityBot Blocked

User-request fetchers

  • ChatGPT-User Allowed

The other 26 AI crawlers we track are not mentioned and only inherit the catch-all rules that apply to every crawler.

  • robots.txt found
  • llms.txt not checked
  • ai.txt not checked

See who blocks each AI crawler across the web

AI Crawlers

6 of 33 AI crawlers blocked

Full breakdown

Audience

  • 70% desktop
  • 29% phone
  • United States
  • India
  • United Kingdom
  • Germany
  • Canada
  • Spain

Where the site's Chrome visitors come from, largest estimated audience first.

Open Page Rank

0.97 / 10 · ranked #13,188,698 of all domains

6 referring domains · OpenPageRank

Core Web Vitals

LCP2 s
INP125 ms
CLS0.45
TTFB800 ms

Real user p75, Chrome UX Report, Aug 2026.

Page

  • Language: English
  • CDN: Cloudflare
  • Weight: 1.8 MB · 107 requests
  • Structured data: OpenGraph, Twitter Cards

Homepage as crawled by the HTTP Archive, Sep 2026.

Infrastructure

  • Hosted on Cloudflare (104.21.57.22, IPv6)
  • DNS: Cloudflare DNS
  • Email: no MX record returned
  • SSL: SSL.com, ECDSA P256, expires Sep 2026
  • Common Crawl link graph: rank 7,524,361, 2 hosts

DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted

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