technologychecker.io
Link authority for technologychecker.io (registrable domain: technologychecker.io) from the Common Crawl web graph: PageRank and harmonic centrality history since 2017, current scores, and the site's top backlink sources.
Web-graph authority (0-100)
Domain scores measure technologychecker.io as a whole: every subdomain's links rolled up into one node of Common Crawl's domain-level web graph. Host scores measure the exact hostname technologychecker.io. WWW scores cover the www variant of that hostname, which the graph tracks as its own entry since January 2026 (before that, www and bare host were merged). A big gap between domain and host usually means the domain's authority lives on other subdomains. PageRank is link-endorsement authority: how much weight the sites linking here carry themselves. Harmonic centrality measures reach: how close this site sits to the rest of the web when following links, which favors broadly connected sites over ones boosted by a few heavy linkers. All are normalized 0 to 100 within each crawl snapshot; a dash means that series does not exist for this site.
Homepage
What technologychecker.io presents on its own homepage: the page title, description, and the social share markup it publishes. Pulled from https://technologychecker.io.
| Title | Website Technology Checker & Lookup Free - TechnologyChecker.io |
|---|---|
| Description | Technology intelligence for sales & GTM teams. 40K+ tech detection, churn signals, and verified contacts on 50M+ domains. |
| OG Title | Website Technology Checker & Lookup Free - TechnologyChecker.io |
| OG Description | Technology intelligence for sales & GTM teams. 40K+ tech detection, churn signals, and verified contacts on 50M+ domains. |
| OG Site Name | TechnologyChecker.io |
| Twitter Title | Website Technology Checker & Lookup Free - TechnologyChecker.io |
| Twitter Card | summary_large_image |
Social accounts and contact points
Where this site maintains a presence and every reachable route its homepage exposes: social accounts, contact pages, addresses, and content feeds.
| X | Webtechchecker |
|---|---|
| technologychecker (business) | |
| Github | technologychecker |
| Youtube | Website-Technology-Insights |
Structured data (JSON-LD)
The schema.org markup this homepage publishes: the machine-readable identity search engines and AI systems read. Types found: WebPage, FAQPage, SoftwareApplication, Organization, WebSite.
JSON-LD block (7,567 bytes)
{"@context":"https://schema.org","@graph":[{"@type":"WebPage","url":"https://technologychecker.io","name":"Website Technology Checker & Lookup Free - TechnologyChecker.io","description":"Technology intelligence for sales & GTM teams. 40K+ tech detection, churn signals, and verified contacts on 50M+ domains.","dateModified":"2026-07-17","primaryImageOfPage":{"@type":"ImageObject","url":"https://technologychecker.io/opengraph-image"}},{"@type":"FAQPage","mainEntity":[{"@type":"Question","name":"What is TechnologyChecker.io?","acceptedAnswer":{"@type":"Answer","text":"TechnologyChecker.io is a technology intelligence platform built for B2B sales, GTM, and market analysis teams. We provide real-time subscriber and churn signals, 20-year historical data for ICP analysis (recent years from our own crawls, prior years rebuilt from public web archives — see the methodology page), and verified decision-maker contacts across 40,000+ technologies and 50M+ domains — including backend and standalone platforms that frontend-only tools miss."}},{"@type":"Question","name":"How does TechnologyChecker work?","acceptedAnswer":{"@type":"Answer","text":"Our platform uses multiple detection methods including HTTP header analysis, JavaScript fingerprinting, HTML parsing, and DNS lookups to accurately identify technologies used by any website."}},{"@type":"Question","name":"What makes TechnologyChecker different from Wappalyzer?","acceptedAnswer":{"@type":"Answer","text":"Seven key differences: (1) Full-stack detection — we detect backend tools like n8n, databases, and standalone platforms like Airtable that Wappalyzer can't see. (2) 40,000+ technologies vs ~8,000. (3) Real-time subscriber & churn signals — know the moment companies adopt or drop any technology. (4) Verified contacts included at $89/month — Wappalyzer requires their $450/month plan. (5) Company + contact data per technology with custom audience exports. (6) 20-year historical data for ICP analysis and churn prediction (recent years from our own crawls, prior years rebuilt year-by-year from public web archives like Common Crawl — methodology is published). (7) Enterprise API, bulk enrichment, and CRM automation — not just a browser extension."}},{"@type":"Question","name":"How accurate is your technology detection?","acceptedAnswer":{"@type":"Answer","text":"We achieve high accuracy through multi-signal detection combining headless JavaScript rendering, HTTP header analysis, DNS/TLS fingerprinting, library signatures, and infrastructure probing. Our system detects 40,000+ technologies including backend tools and standalone SaaS products. Every detection includes a confidence score, and we continuously validate results across 50M+ domains."}},{"@type":"Question","name":"What types of technologies can you detect?","acceptedAnswer":{"@type":"Answer","text":"We detect 40,000+ technologies including CMS platforms, ecommerce solutions, analytics tools, marketing automation, CDNs, payment processors, frameworks, programming languages, and hosting providers."}},{"@type":"Question","name":"Do you have historical data?","acceptedAnswer":{"@type":"Answer","text":"Yes — our historical technology timelines reach back roughly 20 years. The recent ~2 years come from our own snapshotted crawls; the prior ~18 years are rebuilt by analyzing petabytes of Common Crawl archives (back to 2008), Internet Archive / Wayback Machine snapshots for earlier coverage, and data from third-party archive partners. We re-run our current detection fingerprints against those records year-by-year, so you get adoption and churn data per domain across the full timeline — not a smoothed average. Methodology is on our /methodology page."}},{"@type":"Question","name":"Do you comply with GDPR and privacy regulations?","acceptedAnswer":{"@type":"Answer","text":"Absolutely. We only analyze publicly accessible website data and signatures. We never access private information and maintain full compliance with GDPR, CCPA, and other privacy regulations."}},{"@type":"Question","name":"How can sales teams use TechnologyChecker.io?","acceptedAnswer":{"@type":"Answer","text":"Sales teams use our platform to identify prospects using specific technologies, track competitor customers, receive alerts when companies switch tools, and access verified contact data for outreach."}},{"@type":"Question","name":"What about marketing and growth teams?","acceptedAnswer":{"@type":"Answer","text":"Marketing teams leverage TechnologyChecker for competitive analysis, market sizing, identifying integration partners, tracking industry adoption trends, and building targeted prospect lists."}},{"@type":"Question","name":"Where does your data come from?","acceptedAnswer":{"@type":"Answer","text":"Five primary channels: live web crawling with real browser rendering across 50M+ indexed domains, passive DNS monitoring that detects infrastructure changes within 15 minutes, TLS certificate transparency logs, historical Common Crawl archives going back to 2008, and third-party data partners. High-traffic domains refresh every 24–72 hours. Every detection carries a confidence score so you know exactly how reliable each signal is."}},{"@type":"Question","name":"What about private or internal tools?","acceptedAnswer":{"@type":"Answer","text":"We detect technologies through public-facing signals including DNS records, HTTP headers, TLS certificates, API fingerprints, and code signatures. While purely internal tools with no external-facing components aren't detectable, we identify many backend and standalone platforms — like n8n, Airtable, and databases — through their public infrastructure signatures."}}]},{"@type":"SoftwareApplication","@id":"https://technologychecker.io/#product","name":"TechnologyChecker","url":"https://technologychecker.io","applicationCategory":"BusinessApplication","applicationSubCategory":"Sales Intelligence","operatingSystem":"Web, Chrome Extension","description":"Technology intelligence platform with real-time subscriber & churn signals, verified contacts, full-stack detection across 40,000+ technologies, and 20-year historical adoption data — recent years from our own snapshotted crawls, prior years rebuilt year-by-year from public web archives such as Common Crawl. Built for sales and GTM teams.","image":"https://technologychecker.io/opengraph-image","provider":{"@id":"https://technologychecker.io/#/schema/organization/1"},"featureList":["40,000+ technology detections across 50M+ domains","Real-time subscriber and churn signals","20-year historical technology adoption data (recent crawls + 18-year backfill rebuilt from public web archives)","Verified decision-maker contact data","Full-stack detection (frontend, backend, standalone platforms)","Custom audience exports for LinkedIn, Facebook, Google Ads","CRM integration (Salesforce, HubSpot, Pipedrive)","Bulk enrichment up to 100,000 domains","RESTful API access","Chrome extension for instant detection"],"offers":{"@type":"AggregateOffer","offerCount":3,"priceCurrency":"USD","lowPrice":"0","highPrice":"249","offers":[{"@type":"Offer","name":"Free","price":"0","priceCurrency":"USD","description":"100 lookups per month, basic enrichment, CSV export."},{"@type":"Offer","name":"Pro","price":"89","priceCurrency":"USD","description":"Up to 10,000 lookups/month, bulk exports, CRM integrations, API access."},{"@type":"Offer","name":"Scale","price":"249","priceCurrency":"USD","description":"50,000+ lookups/month, full 20-year history, SSO, dedicated success manager."}]}}]}JSON-LD block (1,637 bytes)
{"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://technologychecker.io/#/schema/organization/1","name":"TechnologyChecker.io","url":"https://technologychecker.io/","description":"Technology intelligence for sales & GTM teams. 40K+ tech detection, churn signals, and verified contacts on 50M+ domains.","foundingDate":"2025","sameAs":["https://x.com/Webtechchecker","https://www.linkedin.com/company/technologychecker","https://github.com/technologychecker","https://www.youtube.com/@Website-Technology-Insights","https://www.g2.com/products/technologychecker","https://datasetsearch.research.google.com/search?src=0&query=site%3Atechnologychecker.io&docid=L2cvMTF6MHhkdDNoNQ%3D%3D"],"contactPoint":{"@type":"ContactPoint","email":"hello@technologychecker.io","contactType":"customer support","availableLanguage":["English"]},"logo":{"@type":"ImageObject","@id":"https://technologychecker.io/#/schema/image/1","url":"https://technologychecker.io/favicon.ico","width":"480","height":"480","caption":"TechnologyChecker.io Logo"}},{"@type":"WebSite","url":"https://technologychecker.io","name":"TechnologyChecker.io","description":"Technology intelligence for sales & GTM teams. 40K+ tech detection, churn signals, and verified contacts on 50M+ domains.","inLanguage":"en-US","potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://technologychecker.io/?q={search_term_string}"},"query-input":"required name=search_term_string"},"isPartOf":{"@id":"https://technologychecker.io#/schema/website/1"},"about":{"@id":"https://technologychecker.io#/schema/organization/1"}}]}Authority over time
Every Common Crawl web-graph release since 2017, roughly quarterly. The domain series goes back to 2017; Common Crawl only began publishing the host-level graph in 2020, so host lines start there. Click a legend entry to show or hide that line. Flat lines are normal for established sites; watch for sustained rises or drops, which track real gains or losses in who links here.
A note on www: through the end of 2025 the source web graph merged www and non-www hostnames into the bare name, so one host line covers both. Starting in January 2026 the graph splits them into separate entries, which is why www can carry its own scores going forward.
Backlink counts
Unique linking domains seen in Common Crawl's link graphs. This is a different dataset than the 0-100 authority scores above: these are raw counts, host-level for technologychecker.io and domain-level for technologychecker.io with all its subdomains combined. Common Crawl covers a large sample of the web, not all of it, so treat counts as comparable between sites rather than absolute totals.
Top backlinks in the domain graph
Common Crawl publishes two link graphs. The DOMAIN graph connects whole domains: every link from any page of one domain to any page of another. This table shows the highest-authority domains linking to technologychecker.io (including its subdomains), ranked by the linker's PageRank. The table shows the top 152; the download carries the full stored list (up to 10,000 linkers) as JSON. Click a linker for its own site profile.
Top backlinks in the host graph
The HOST graph connects exact hostnames, so subdomains count separately. This table shows the highest-authority hosts linking to technologychecker.io specifically, ranked by the linker's PageRank. The table shows the top 157; the download carries the full stored list (up to 10,000 linkers) as JSON. Click a linker for its own site profile.