By Kushal Magar · September 27, 2026 · 13 min read
7 Best Geekflare Tech Lookup Alternatives for B2B Enrichment in 2026
Geekflare Tech Lookup is a free, single-URL utility for checking one website's stack in a browser tab — part of the same toolset as Geekflare's hosting checker, DNS lookup, and meta scraper. It was never built to run technographic lookups across a prospect list. Here are 7 tools for teams that have outgrown the one-off check.
Search "Geekflare Tech Lookup alternatives" and you'll find a genuinely handy free tool: paste a URL, get a quick read on the CMS, analytics tags, and a handful of other technologies a site is running. It sits inside Geekflare's broader library of ad-hoc web utilities — hosting checker, DNS lookup, meta scraper, screenshot API — built for a developer or marketer checking one thing on one site, not for a revenue team qualifying a prospect list.
That single-URL design is exactly why people search for an alternative. If you're manually pasting URLs one at a time to see who's running HubSpot or Shopify, the tool works, but it doesn't scale past a handful of lookups a day, doesn't hold history, and can't turn "uses X" into a filtered list of companies to prospect. We compared 6 tools built for that next step, from free single-site checkers with a bit more depth to full technographic databases and company-search platforms, plus SyncGTM for teams that want tech-stack filtering wired directly into enrichment and outreach.
If you're evaluating this category more broadly, our breakdowns of Wappalyzer alternatives and BuiltWith alternatives cover the two most-searched technographic tools directly — this list intentionally avoids repeating that same lineup and focuses on tools suited to going from one-off lookups to list-scale technographic search.
Quick Summary
The right Geekflare Tech Lookup alternative depends on whether you still just need to check one site occasionally, or whether you need to find every company running a given technology across a whole market. For the former, Netcraft Site Report and urlscan.io both match Geekflare's own free, no-signup, single-URL model while adding hosting, SSL, and security context Geekflare's tool doesn't show. Datanyze and StackShare sit in the middle — a browser extension with a searchable database, and a community directory of shared stacks — useful once you're checking more than a handful of sites a week. PredictLeads and MixRank are developer-first options for pulling technographic data into your own system at volume, priced for that use case rather than casual browsing. SyncGTM is built for a different job entirely: instead of returning a stack for one URL, it searches companies by the technologies they run, then adds firmographics, hiring signals, and verified contacts from a waterfall across 50+ providers, and pushes qualified accounts straight into outreach. If you're checking one site before a sales call, a free single-URL tool is still the right call. If you're trying to build a list of every company running a specific technology, Geekflare's tool — and most of the free alternatives on this list — was never built for that, and that's the gap SyncGTM fills.
TL;DR
- SyncGTM — Best for searching and enriching companies by tech stack at scale, not just checking one URL. From $99/mo with a free tier.
- Netcraft Site Report — Best free single-URL alternative that adds hosting, SSL, and security context Geekflare's tool skips. Free.
- Datanyze — Best for a technographic Chrome extension plus a searchable database, not just a one-off check. From $29/mo (or $21/mo annual).
- StackShare — Best for browsing how real engineering teams describe their own stack, community-sourced. Free.
- urlscan.io — Best free single-URL scanner for teams that also want DOM, request, and security detail alongside detected technologies. Free tier, paid from roughly $50/mo.
- PredictLeads — Best developer-first API for pulling technographic and hiring signals into your own system at volume. Quote-based pricing.
- MixRank — Best for ad-tech and mobile SDK intelligence layered on top of standard web technology detection. Quote-based pricing.
What We Evaluated
- Lookup scope — single-URL check only, or can it search/filter companies by technology across a market
- Depth beyond the stack — hosting, SSL, DNS, and security context versus just a technology list
- Free tier — whether a usable free option exists without an account or credit card
- Data freshness — how often technology detection is re-crawled or re-verified
- Path to a prospect list — whether a detected technology can become a filtered, exportable list of companies
- Whether the tool stops at detection or connects to contact discovery, enrichment, and outreach
1. SyncGTM — B2B teams that need to find and enrich companies by tech stack at scale, not check one site at a time
SyncGTM — B2B teams that need to find and enrich companies by tech stack at scale, not check one site at a time
SyncGTM is a real-time B2B enrichment platform built for the job Geekflare Tech Lookup was never designed for: finding every company running a given technology, not just checking one URL.
Company tech-stack search runs alongside a waterfall across 50+ data providers per lookup, adding up to 76+ data points per company and lead — verified firmographics, headcount growth, hiring signals, and direct contact details, refreshed at time of search rather than pulled from a static index.
Because tech-stack search, enrichment, and outreach live in the same subscription, a filtered list of "companies running X" can go straight into a sequence without exporting a spreadsheet into a separate outreach tool. See the GTM agent library or a ready-made outreach workflow template for how that connects end to end, and check pricing for current plans.
Pros
- +Searches and filters companies by technology across a market, not just one URL at a time
- +76+ data points per company and lead from 50+ providers, refreshed at time of lookup
- +Tech-stack search, enrichment, and outreach in one subscription — no separate list export step
- +Flat monthly pricing with a free tier to test before committing
Cons
- −$99/mo entry point is higher than a free single-URL checker if all you need is an occasional one-off lookup
- −Not built for checking a single site's stack in isolation the way Geekflare's tool is
Best for: B2B teams that need to find and enrich companies by tech stack at scale, not check one site at a time
Pricing: Starts at $99/mo. Free tier available.
2. Netcraft Site Report — Teams that want Geekflare's free, single-URL simplicity with more hosting and security context included
Netcraft Site Report — Teams that want Geekflare's free, single-URL simplicity with more hosting and security context included
Netcraft Site Report is the closest direct match to Geekflare Tech Lookup's own free, no-signup, single-URL model — paste a domain and get back hosting provider, IP netblock, SSL certificate details, and a read on the server and CMS technology.
Where it goes further than Geekflare's tool is infrastructure and security context: Netcraft has run internet-wide crawling and phishing-detection research since 1995, so a Site Report includes hosting history and risk signals a pure technology checker skips entirely.
It stops at the report itself — there's no bulk search, saved lists, or company-level filtering, so it's a direct swap for one-off checks rather than a scale-up.
Pros
- +Free, no signup required — matches Geekflare Tech Lookup's own access model exactly
- +Adds hosting provider, SSL, and security context most technology-only checkers don't show
- +Backed by Netcraft's long-running internet crawling and threat-research infrastructure
Cons
- −Single-URL only — no bulk lookup, saved history, or company search
- −Technology detection is a byproduct of a hosting/security report, not the primary focus
Best for: Teams that want Geekflare's free, single-URL simplicity with more hosting and security context included
Pricing: Free for the Site Report tool. Netcraft's enterprise threat-intelligence products are quote-based.
3. Datanyze — Teams that want a searchable technographic database plus a browser extension, not just a one-off URL check
Datanyze — Teams that want a searchable technographic database plus a browser extension, not just a one-off URL check
Datanyze pairs a Chrome extension for checking a site's technology while you browse with a searchable technographic database behind it — the first step up from a single-URL checker into something you can query.
Nyze Lite is free for 90 days (10 credits/mo). Pro 1 runs $29/mo (or $21/mo billed annually) for 80 credits, and Pro 2 is $55/mo for 160 credits, where each credit unlocks a contact reveal alongside the technographic data.
Technology tracking is reliable for well-known platforms, though contact data accuracy is more inconsistent outside North America, and the credit model limits how far a single plan stretches at volume.
Pros
- +Searchable technographic database, not just a one-URL check — can filter by technology
- +Chrome extension shows detected technology while browsing a prospect's site or LinkedIn
- +Free tier available for light usage before committing to a paid plan
Cons
- −Credit-gated contact reveals make heavy prospecting expensive quickly
- −Contact data accuracy drops noticeably outside North America
Best for: Teams that want a searchable technographic database plus a browser extension, not just a one-off URL check
Pricing: Nyze Lite free (10 credits/mo, 90 days). Pro 1 $29/mo ($21/mo annual, 80 credits). Pro 2 $55/mo (160 credits).
5. urlscan.io — Teams that want a free single-URL checker with security and DOM-level detail beyond a basic technology list
urlscan.io — Teams that want a free single-URL checker with security and DOM-level detail beyond a basic technology list
urlscan.io is a free URL and domain scanner that goes well past a technology list: it renders the page, logs every request it makes, and surfaces the frameworks, trackers, and services involved alongside a full DOM and network breakdown.
Every public scan is searchable by other users too, which means a domain that's already been scanned once often has recent technology data available instantly without triggering a new crawl.
Paid plans (from roughly $50/mo) unlock private scans and higher API limits for teams that don't want their lookups showing up in the public scan history.
Pros
- +Free public scans include full DOM, network request, and security detail, not just a technology list
- +Previously scanned domains often return instant results from the public archive
- +API access available for pulling scan data into other tools
Cons
- −Public scans are visible to other users unless you're on a paid private-scan plan
- −Still a single-URL scanner at its core — no company-level technology search
Best for: Teams that want a free single-URL checker with security and DOM-level detail beyond a basic technology list
Pricing: Free for public scans. Paid plans from roughly $50/mo for private scans and higher API limits.
6. PredictLeads — Data teams that need technographic and hiring signals piped into their own product via API
PredictLeads — Data teams that need technographic and hiring signals piped into their own product via API
PredictLeads is a developer-first API built to feed technographic, hiring, and company-event signals into another product or internal system, rather than being used through a browser lookup screen.
It's aimed at data teams and platforms that need technology and job-posting signals at volume — the kind of use case a single-URL checker like Geekflare's simply isn't architected for, since there's no bulk or programmatic access to it.
Pricing is quote-based and scales with API call volume, which puts it out of reach for a casual one-off lookup but makes sense for a team building technographic signals into their own platform.
Pros
- +API-first architecture built for bulk and programmatic technographic queries
- +Combines technology signals with hiring and company-event data in one feed
- +Fits directly into an existing data pipeline rather than requiring a manual browser lookup
Cons
- −Quote-based pricing with no public self-serve tier for casual use
- −Requires engineering resources to integrate — not a point-and-click tool
Best for: Data teams that need technographic and hiring signals piped into their own product via API
Pricing: Quote-based, scaled to API call volume. Contact PredictLeads for a plan.
7. MixRank — Teams selling into ad-tech, martech, or mobile SDK companies that need that specific technology layer
MixRank — Teams selling into ad-tech, martech, or mobile SDK companies that need that specific technology layer
MixRank covers standard web technology detection but adds a layer most alternatives on this list skip: ad-tech and mobile SDK intelligence, tracking which advertising networks, analytics kits, and mobile libraries an app or site embeds.
That makes it a fit for a narrower audience — teams selling into ad-tech, martech, or mobile SDK companies who need to know not just "what CMS is this" but "which ad network or analytics SDK is this app using."
It's a specialized data feed rather than a quick lookup tool, and like PredictLeads, pricing is quote-based rather than a self-serve checkout.
Pros
- +Tracks ad-tech and mobile SDK usage that generic technology checkers don't cover
- +Useful for a specific ICP: companies selling into ad-tech, martech, or mobile ecosystems
- +Data feed format fits into an existing prospecting or research workflow
Cons
- −Narrow use case — overkill if you just need general CMS or analytics detection
- −Quote-based pricing with no self-serve single-lookup option for casual use
Best for: Teams selling into ad-tech, martech, or mobile SDK companies that need that specific technology layer
Pricing: Quote-based. Contact MixRank for current pricing.
Comparison Table
| Tool | Best For | Free Tier | Starting Price | Standout Feature |
|---|---|---|---|---|
| SyncGTM | B2B teams that need to find and enrich companies by tech stack at scale, not check one site at a time | Yes | $99/mo | Tech-stack company search wired directly into waterfall enrichment and outreach — the step past a single-URL lookup |
| Netcraft Site Report | Teams that want Geekflare's free, single-URL simplicity with more hosting and security context included | Yes | Free | The most direct free, no-signup match to Geekflare Tech Lookup's own single-URL model |
| Datanyze | Teams that want a searchable technographic database plus a browser extension, not just a one-off URL check | Yes | $29/mo | Combines a browser extension with a queryable technographic database rather than a single-lookup tool |
| StackShare | Researching how companies describe and reason about their own stack, beyond what's externally detectable | Yes | Free | Self-reported technology data from real engineering teams, not inferred from a crawl |
| urlscan.io | Teams that want a free single-URL checker with security and DOM-level detail beyond a basic technology list | Yes | Free (paid from ~$50/mo) | Full DOM and network-request detail alongside detected technologies, not just a stack summary |
| PredictLeads | Data teams that need technographic and hiring signals piped into their own product via API | No public free tier | Quote-based | API-native technographic and hiring signals built for volume, not manual single-URL checks |
| MixRank | Teams selling into ad-tech, martech, or mobile SDK companies that need that specific technology layer | No public free tier | Quote-based | Ad-tech and mobile SDK detection layered on top of standard web technology tracking |
How to Choose
- SyncGTM if you need b2b teams that need to find and enrich companies by tech stack at scale, not check one site at a time
- Netcraft Site Report if you need teams that want geekflare's free, single-url simplicity with more hosting and security context included
- Datanyze if you need teams that want a searchable technographic database plus a browser extension, not just a one-off url check
- StackShare if you need researching how companies describe and reason about their own stack, beyond what's externally detectable
- urlscan.io if you need teams that want a free single-url checker with security and dom-level detail beyond a basic technology list
- PredictLeads if you need data teams that need technographic and hiring signals piped into their own product via api
- MixRank if you need teams selling into ad-tech, martech, or mobile sdk companies that need that specific technology layer
