You can check websites in bulk without a Wappalyzer subscription by using another technology database with exports or batch API access, or by using free lookups for a smaller list. BuiltWith documents multi-domain lookups and background bulk jobs; StackScan advertises technology searches, domain exports, and bulk enrichment on higher plans. Neither option is established here as a free, like-for-like replacement, so compare quotas, data freshness, and costs before processing a large list.
Choose the right kind of lookup
Website technology detectors infer a site’s stack from signals they can observe. Results can include content management systems, ecommerce platforms, analytics tools, frameworks, and infrastructure. They are not guaranteed inventories: detections depend on what is exposed on the pages checked and how current the provider’s data is.
- A short list: Try free lookups or browser checks before paying for bulk access.
- A prospect or research list: Look for domain exports, CSV upload, and clear limits on the number of domains.
- Recurring or automated checks: Compare API access, batch handling, output formats, and the cost of rerunning scans.
For large lists, first establish whether a result comes from an indexed database or a fresh scan. A fresh scan may cost more or take longer, while cached data can be older. Neither method should be assumed to find every technology on every site.
Options for checking many websites
| Option | Bulk workflow | What to know |
|---|---|---|
| Wappalyzer free account and lookup | The lookup page accepts CSV or TXT uploads of up to 100,000 URLs. Cached results count as one lookup per URL; live results count as five, according to Wappalyzer. | Wappalyzer’s pricing page lists 50 lookups and email verifications per month and five website alerts for the free account. Its pricing FAQ says API access, lead lists, and CRM integrations require a plan. Check which bulk features your account can use before relying on them. |
| BuiltWith Domain API | Documents multi-domain lookup, high-throughput lookup, and bulk jobs. Large batches may run asynchronously and return a job ID. Output formats include JSON, XML, CSV, and XLSX. | BuiltWith’s home page reported 127,700+ technologies in 2026 and technology-trend data going back to January 1985. These are vendor-published figures, not independent measurements. |
| StackScan | Advertises technology, keyword, and location search, domain exports, and bulk enrichment/API access on higher plans. | In 2026, StackScan advertised coverage of 399M+ websites and 55,000+ technologies, with plans starting at $39 per month. These are vendor claims; verify current pricing and plan entitlements directly. |
Wappalyzer is included as a point of comparison, not as a required subscription: its free account has a published monthly allowance, but its API and prospect-list workflows require a plan. The reviewed sources do not establish that another provider offers equivalent bulk volume for free.
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- Mobile BearTracker scanner with 9,000 Channels, advanced dynamic memory system, close call RF capture technology, and more. Compatible with BC-RH96 Remote Head
- TrunkTracker III technology lets you can keep up with the action on Motorola, EDACS and LTR systems. Individual channel volume offset. Alpha Tagging
- Location-Based scanning automatically selects programmed systems based on your location when connected to a compatible GPS receiver
- State-by-state preprogrammed channels for local police, DOT, and Highway Patrol frequencies when you travel, without having to program
- 100 system Quick Keys with 10-channel group Quick Keys per system; system/channel number tagging for rapid access.Continuous Band Coverage* - 25MHz to 1.3GHz Excluding UHF TV and Cellular
How to evaluate a provider before processing your list
- Check the volume limit. Confirm the maximum URLs per upload or API request, how oversized jobs are handled, and what happens when you reach a quota.
- Check freshness and scan depth. Ask whether results are cached or live, when records were last verified, and whether the service checks one page or follows internal links. Wappalyzer says its cached results have been verified within the last 30 days and are more complete, while live results are more up to date. That is Wappalyzer’s description of its own service.
- Check the output and workflow. Confirm that the plan includes the export format, API, CRM integration, or repeat-check capability you actually need.
- Calculate cost for your actual use. Include monthly allowances, credits per URL, live-scan multipliers, plan minimums, and whether credits expire.
- Test a small representative sample. Include domains whose technology stacks you already know. Compare detections and data age with your intended use before submitting the full list.
Understand the difference between a database result and a live scan
An indexed lookup returns information a provider already has on file; its value depends partly on how recently that domain was checked. A live scan checks the site now, but a quick scan may inspect less of it. Wappalyzer’s API documentation says a live single-page scan is faster but less complete than a recursive crawl, and that a recursive live crawl can take up to 15 minutes. Its documentation also lists one lookup credit per URL for a cached lookup and five credits for a live recursive lookup.
Those figures describe Wappalyzer’s documented behavior, not a universal pricing standard. Check each provider’s own credit rules and scan methodology. Do not compare providers on accuracy based on advertised database size alone; the sources cited here do not establish an independent accuracy ranking.
Rank #2
- The BCD325P2 comes equipped with Uniden exclusive features like Advanced Dynamic Memory System, Close Call RF Capture Technology, and GPS compatibility. It also includes support for the latest APCO Project 25 Phase II systems.
- Scan and search 25,000 channels. With Close Call RF capture technology, this scanner will automatically tune to the signals nearest you, so you can keep track of what's going on in your area.
- Quick-Key System Access (100 Keys), allows you to quickly access the systems you us the most often. Uniden Police Scanners feature simple to set up keys to the systems you want to hear. Press them to enable or disable the system.
- GPS Location-Based Scanning, connect this scanner to an optional GPS receiver and it will automatically select programmed systems based on your exact location. You'll save time by scanning only the local signals.
- S.A.M.E. Weather Alert, supports Specific Area Message Encoding weather alerts. During a NOAA Weather or Emergency Alert, a code for your specific location will alert you to severe conditions in your immediate area.
When a few manual checks are enough
If you only need answers for a handful of sites, start with the providers’ available free lookups and browser-based checks rather than buying access to a large dataset. Treat a detector’s result as evidence about visible technologies, not proof that its list is exhaustive. For a larger list, use a small sample to confirm that its freshness, fields, and export format fit your task before committing to a paid plan.
Quick Recap
Best Value
- Stay Safe and Informed with the Uniden BCD996P2. A true scanner powerhouse, it comes with state-of-the-art NOAA weather access and S.A.M.E. weather alerts that warn you of severe conditions in your area. This mobile scanner radio comes with 25,000 channels, Close Call RF Capture, TrunkTracker V technology, and more.
- CLOSE CALL RF TECHNOLOGY WITH DND Provides information about nearby radio transmissions. Close Call Do-Not-Disturb checks for Close Call activity during channel reception so active channels are not interrupted.
- TRUNK TRACKER V OPERATION Scans APCO 25 Phase 1 and Phase 2, X2-TDMA, Motorola, EDACS, and LTR trunked systems, as well as conventional analog and P25 digital channels.
- S.A.M.E. WEATHER ALERT Stay ahead of the weather and on top of the waves. During an NOAA Weather or Emergency Alert, a code for your specific location will alert you to severe conditions in your immediate area.
- LOCATION BASED SCANNING Connect this scanner to a compatible GPS receiver and it will automatically select programmed systems based on your exact location. You'll save time by scanning only the local signals.
Rank #4
- Flattening Curved Book Page Technology: It utilizes three precise laser lines for incredible scanning accuracy and image clarity. This gives the Aura the ability to scan and exactly replicate the individual flat pages of curved books.AI technology incorporated in the software makes scanning and image processing smarter and simpler.Work with Mac (Apple Silicon): macOS 13 or later; Mac (Intel): macOS 12 or later, AND Windows XP/7/8/10/11
- Fast Scanning Speed+Supplemental Side Lights: Ultra-fast scanning speed from Aura’s high configuration software. Only 2sec/page for both single sheets and double page books. Able to scan any size material smaller than A3. 2 Supplemental Side Lights are included to create an enhanced light environment to avoid reflection on glossy papers
- OCR supports 180+ languages for text recognition. Please note that Thai, Hebrew, and Arabic are currently not supported. If you need the complete OCR language support list, please feel free to contact us for more details
- Multifunction Desk Lamp: 4 color modes for both family and office use six brightness levels. Dual color temperature LEDs prevent eye fatigue
- Smart and Sound-Controlled Lamp: Aura Smart Lamp is designed as a Sound-Controlled device, No Wi-Fi or Bluetooth connection needed. NOTE: the sound-control function could be influenced by environmental noise and distance(Within 10 ft）. Make sure it is relevant quiet and keep your Smart Phone Speaker Loud enough to let Aura “hear” the command
Rank #3
- Multi-Color LED & Audible Alerts: Stay informed with programmable audible alarms and a customizable Alert LED that supports up to 8 user-defined colors from thousands of combinations.
- Automatic Adaptive Digital Tracking: Advanced real-time P25 decoding adapts 50+ times per second to shifting signals caused by multipath or fading—no manual adjustments needed.
- Digital AGC & P25 NAC Support: Instantly adjusts for low audio levels on digital systems and filters out unwanted transmissions using Network Access Code (NAC) filtering.
- Menu-Driven Programming with Help Text: Easy setup and operation thanks to intuitive menus with built-in help for every option—great for beginners and pros alike.
- High-Speed PC Interface & Cloning: Program and update via USB at blazing speeds—6x faster PC transfers and 8x faster cloning between units (includes USB programming cable).
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