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AITDK SEO Extension vs Thundercrawl

Focuses on broader SEO analysis and keyword tools, not LLMs.txt generation
AITDK SEO ExtensionYour All-In-One SEO Extension. Free traffic & keywords & whois & website SEO analyzer.ThundercrawlBe the source AI trusts

Side by side

What it is
AITDK SEO Extension:AITDK SEO Extension is a free Chrome extension that provides on-page SEO audits, traffic stats, WHOIS lookup, keyword density and more.
Thundercrawl:Thundercrawl generates LLMs.txt files for websites to improve AI search discoverability and SEO.
Best for
AITDK SEO Extension:All-in-one free SEO browser extension
Thundercrawl:LLMs.txt generation for SEO
Who it’s for
AITDK SEO Extension:SEO professionals, webmasters and marketers needing quick site analysis
Thundercrawl:Web developers and site owners who want AI-ready content for better search visibility.
Pricing
AITDK SEO Extension:Freemium
Thundercrawl:Freemium
Plans
AITDK SEO Extension:Free $0 · Starter $10 per month · Pro $20 per month
Thundercrawl:—
DevHunt upvotes
AITDK SEO Extension:26
Thundercrawl:0
Launched on DevHunt
AITDK SEO Extension:Jun 2024
Thundercrawl:Jan 2025

AITDK SEO Extension features

  • On-Page SEO Audit. Shows title, description, URL, H tags, images, links and other core SEO elements of any page.
  • Website Traffic Analysis. Displays monthly visits, bounce rate, dwell time, global rank and traffic source breakdown.
  • WHOIS Lookup. Provides domain registration, expiry dates, registrar and nameserver information.
  • Keyword Density Check. Lists most frequent keywords with count and density for the current page.
  • Headings & Images Analysis. Shows heading hierarchy, image alt/title status and link ratios (dofollow/nofollow).
  • Metadata Extraction. Collects and displays all metadata from the page in a clear format.
AITDK SEO Extension on DevHunt →Alternatives

Thundercrawl features

  • LLMs.txt Generator. Creates .txt files that make any website ready for large language model indexing.
  • Free Sample Crawl. Allows a test run on up to 5 pages, 10 blogs, and 10 products at no cost.
  • Full Site Crawl. Scans the entire site to produce comprehensive LLMs.txt output.
  • Single Page Mode. Generates LLMs.txt for a specific page on demand.
  • Advanced Options. Provides configurable settings for customized crawling and output.
  • Premium Plans. Offers paid tiers for larger sites and higher crawl limits.
Thundercrawl on DevHunt →Alternatives

Based on each tool's website and DevHunt data. Details may change; check the official sites.