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SiteIntelica vs TechnologyChecker

Both stand on technographic data software. Which one you can start free with, which one lets you read the code, and what each costs once you pay.

SiteIntelica

Free plan APIWeb

SiteIntelica combines technology-based lead searches with security and SEO analysis, plus monitoring and outreach features on paid plans. The free plan can preview leads and scan sites; full lead lists require a paid plan.

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TechnologyChecker

Free plan APIExtensionWeb

Choose TechnologyChecker if your team needs technology detection, historical timelines, or technology change signals for B2B sales or market analysis. The Free plan provides 100 monthly lookups; Pro or Scale may suit teams needing higher lookup limits, longer history, or additional capabilities. Lookups stop when the monthly limit is reached until the next billing cycle or an upgrade.

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The facts

SiteIntelicaTechnologyChecker
Free planYesYes
Open sourceNot publishedNot published
Runs onAPI, WebAPI, Extension, Web
Lowest paid planPro: €19 a monthPro: $89 a month
Plans published34
MakerNot publishedNot published
Websitesiteintelica.comtechnologychecker.io
On technographic data software#12 of 31#16 of 31

SiteIntelica: what it does well

  • Detects frameworks, CMSs, CDNs, analytics, and ad networks
  • Analyzes security and SEO alongside technology
  • Monitors changes, security regressions, and downtime
  • REST API includes scans, leads, monitoring, and AI features

What to know first

  • Free plan is limited to five scans daily
  • Free plan previews only five lead matches
  • Full lead lists require a paid plan

TechnologyChecker: what it does well

  • Detects 40,000+ technologies across 29.9M live business domains.
  • Uses multiple signals, including HTTP headers and DNS lookups.
  • Historical technology timelines reach roughly 20 years.
  • Provides real-time adoption, churn, and replacement signals.
  • Offers a Chrome extension alongside web and API access.

What to know first

  • Free plan allows 100 lookups per month.
  • Free plan includes only six months of historical data.
  • Lookups pause at the monthly plan limit until renewal or upgrade.

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