Wappalyzer API alternative for website tech stack, SEO and llms.txt checks

Fairquery · Updated October 19, 2026

Who each tool fits best

Wappalyzer points come from the pricing page and lookup API docs; Fairquery points from the Store page.

Wappalyzer and the Fairquery tech/SEO Actor compared

Facts about Wappalyzer come from its own public pages, checked on 2026-10-19. Plans and prices can change; check Wappalyzer pricing and the lookup docs before you decide.

What it costs: four example workloads

Fairquery prices are from the Apify Store (checked 2026-10-19). Wappalyzer plan prices are monthly figures from its pricing page the same day. Apify Free includes $5/month prepaid usage (Apify pricing).

This is not a like-for-like comparison. A Wappalyzer Business plan buys technographics data, lead-list products and API credits. The Fairquery Actor buys live site rows with SEO and AI-readiness fields. Technology recall will differ.

How the Fairquery Website Tech, SEO & AI-Readiness Actor works

• You pass URLs or domains. Up to maxSites per run (default 500).
• Per site it fetches robots.txt, the page, sitemap hints, and /llms.txt / /llms-full.txt.
• It detects technologies with ~75 signatures from HTML, headers, cookies and meta generators.
• It scores SEO (missing title, meta, H1, canonical, OG, structured data, thin content, …) and AI-readiness (llms.txt, AI bots, JSON-LD, …).
• It maps AI crawlers in robots.txt: GPTBot, ClaudeBot, PerplexityBot, Google-Extended, CCBot and others as allowed / partial / blocked.
• Error rows are free (blocked, robots-disallowed, fetch failed).

Limits: no JavaScript rendering; not a substitute for Wappalyzer’s database or lead lists. Details: llms.txt guide and Store page.

How to start

1. Open the Website Tech, SEO & AI-Readiness Actor on the Apify Store.
2. Enter URLs. A minimal input:

{
  "urls": ["stripe.com", "https://www.example.org/pricing"],
  "checkRobots": true,
  "checkSitemap": true,
  "checkLlmsTxt": true,
  "respectRobotsTxt": true
}

3. Run it and read rows where type is site.
4. Optional: schedule bulk lists, set a max cost per run, or call it from an agent through Apify MCP.

FAQ

Is the Fairquery Website Tech Actor a drop-in replacement for the Wappalyzer API?

No. Wappalyzer's Technology lookup API is a database-backed technographics API (with optional live crawl) that can also return company and contact enrichment fields, and it requires a Business plan. The Fairquery Actor fetches each site live over plain HTTP and returns one row with heuristic tech signatures (~75), SEO issues, robots.txt AI-bot rules, sitemap and llms.txt. It replaces Wappalyzer only if that live, pay-per-site row is what you need.

Does Wappalyzer's lookup API work on the Pro plan?

Wappalyzer's Technology lookup docs state that a Business plan is required. Pro is listed on the pricing page at $250/month with technology lookups and email verifications; Business is $450/month and includes API credits. Check both pages before you buy.

How much does Fairquery cost compared with Wappalyzer?

Fairquery charges $0.0015 per site row on Apify ($1.50 per 1,000 sites); error rows are free. Apify Free includes $5/month prepaid usage, enough for about 3,300 site checks. Wappalyzer's lookup API requires a Business plan at $450/month on the pricing page (checked 2026-10-19), with 20,000 included API credits that expire after 60 days (typically 1 credit per URL). Pro is $250/month. Outputs differ, so compare what you need.

Does Fairquery detect as many technologies as Wappalyzer?

No. Wappalyzer maintains a large technology database and can crawl multiple pages (recursive) or return cached records. Fairquery uses about 75 HTML/header/cookie/meta-generator signatures from a single plain-HTTP response. Some tools only loaded by JavaScript will be missed.

Can Fairquery return company emails and phone numbers like Wappalyzer sets=company,contact?

Not in this Actor. Wappalyzer's lookup docs show optional field sets for company and contact data. For public contacts from a domain, Fairquery has a separate Website Contact Enricher Actor. This Actor focuses on tech, SEO, AI-crawler rules and llms.txt.

Does either product render JavaScript?

Wappalyzer can analyze sites live and recursively crawl pages (see lookup docs). Fairquery uses plain HTTP only—no browser—so JS-rendered content may look thin. That keeps it fast and cheap.

Is Fairquery affiliated with Wappalyzer?

No. Wappalyzer is a trademark of its owner. Fairquery is not affiliated with, endorsed by or sponsored by Wappalyzer. The name is used only to compare the two products.

Sources

1. Wappalyzer pricing page: Pro $250/mo, Business $450/mo, Enterprise $850+/mo; users, lead-list targets, technology lookups, email verifications, included API credits; API credits expire after 60 days; start-free for website research. Checked 2026-10-19.
2. Wappalyzer Technology lookup API docs: Business plan required for the lookup API; endpoint, 1 credit per URL (5 with live+recursive); rate limit 10 req/s; cached vs live vs recursive behaviour; optional company/contact field sets. Checked 2026-10-19.
3. Wappalyzer home page: technographics products: lead lists, technology lookup, browser extension, alerts. Checked 2026-10-19.
4. Fairquery Website Tech Stack, SEO & llms.txt Checker on the Apify Store: pay-per-event price, input, output, limitations. Checked 2026-10-19.
5. Apify pricing page: Free plan includes $5 of monthly prepaid platform usage that can be spent on Store Actors. Checked 2026-10-19.

See also all Fairquery tools, all guides and tools for AI agents.