You can check website technology stacks in bulk without subscribing to Wappalyzer, but the right route depends on whether you need a small list, a large export, or automated processing. BuiltWith documents multi-domain lookups and background bulk API jobs; StackScan advertises technology search, domain exports, and higher-plan bulk enrichment. For a handful of sites, Wappalyzer’s free allowance and browser-based checks may be enough. None of these options guarantees a complete or current inventory of every technology on a site.
Choose a route based on how many sites you need to check
Technology detectors infer a website’s stack from signals they can observe, such as page content and exposed code. Results can cover categories including content management systems, ecommerce platforms, analytics, frameworks, and infrastructure. The result is an informed detection, not a guaranteed inventory: visibility, pages analyzed, and record freshness all affect what appears.
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- A few domains: Try Wappalyzer’s free account or a browser-based check, then verify important findings against the site itself.
- A list you need to export: Compare Wappalyzer’s bulk lookup workflow with StackScan’s advertised domain exports and BuiltWith’s API output formats.
- Recurring or automated processing: Examine BuiltWith’s batch-oriented Domain API or StackScan’s higher-plan bulk enrichment/API access. Check quotas and costs before building a workflow around either service.
What each option offers
| Option | Bulk workflow | Published limits or scale | Important qualification |
|---|---|---|---|
| Wappalyzer free account and lookup | Lookup page accepts a CSV/TXT upload; API and prospecting workflows are plan-based. | Wappalyzer states a free allowance of 50 lookups and email verifications per month and five website alerts. Its lookup page states an upload limit of up to 100,000 URLs. Cached results count as one lookup each; live results count as five. | Confirm that the upload and options you need are available on your account tier. Cached and live results differ in freshness and credit use. |
| BuiltWith | Domain API documents multi-domain requests, high-throughput lookup, and asynchronous bulk jobs; output formats include JSON, XML, CSV, and XLSX. | BuiltWith’s home page reported 127,700+ technologies in 2026. | Technology coverage is a vendor-reported figure. Check API access, batch limits, and pricing for your use case. |
| StackScan | Advertises technology, keyword, and location search, domain exports, and bulk enrichment/API access on higher plans. | StackScan’s home page reported 399M+ websites, 55,000+ technologies, and plans starting at $39 per month in 2026. | Coverage and starting price are vendor claims; verify current plan entitlements and pricing before purchase. |
Wappalyzer’s current product details are on its Technology lookup, Technology lookup API, and Plans & pricing pages. BuiltWith describes its options on the Domain API page, while StackScan lists its search and plan claims on Search websites by technology stack.
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An indexed result can be quick, but its usefulness depends on when it was last checked. Wappalyzer says its cached results have been verified within the last 30 days and describes them as more complete; that is the vendor’s characterization. Wappalyzer also says live results are more up to date. Its API documentation distinguishes a faster live single-page scan from a recursive crawl, which can take up to 15 minutes and may find more than a single-page scan.
#1 Best Overall
- 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
For Wappalyzer’s documented API pricing, a URL uses one lookup credit for a cached lookup and five credits for a live recursive lookup. These figures concern Wappalyzer’s API, not a general industry standard. For other vendors, ask whether an answer comes from an existing database or a fresh scan, when the record was last verified, and whether crawling beyond one page is included.
Compare providers against your actual workflow
Before uploading a large list or committing to an API, compare the details that determine whether the output will be usable:
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.
- Volume: Maximum URLs per upload or request, support for background jobs, and what happens when you exceed a quota.
- Freshness: Cached database result or live scan, verification date, and availability of deeper crawling.
- Coverage: Technologies detected, whether one page or internal pages are checked, and which fields accompany each result.
- Workflow: CSV, JSON, or XLSX export; API access; CRM integration; and the ability to run checks again later.
- Cost at your volume: Monthly free allowance, credits per URL, live-scan multipliers, plan minimums, and credit-expiration rules.
Provider pages establish advertised capabilities and limits, not which detector is most accurate. The vendor coverage figures above are not independent measurements, and there is no independent benchmark here for ranking detection accuracy. Test a small, representative sample—including domains whose stacks you already know—before relying on results for a larger list.
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).
Use a small pilot before processing the full list
- Prepare a representative sample. Include different kinds of sites and, where possible, a few with a known stack. Remove duplicates and check that the domains are valid.
- Choose the result type. Decide whether a cached record is sufficient or whether you need a live scan. For Wappalyzer, account for the documented difference in credits between cached and live recursive lookups.
- Check plan access and limits. Confirm upload size, API eligibility, export format, batch behavior, and the price at the volume you expect—not just the advertised starting price.
- Review misses and stale records. Compare the output with your known examples, note technologies not detected, and check whether the provider shows when records were verified.
- Scale only if the pilot fits. Export or automate the remaining list after confirming that the fields, freshness, and workflow meet your needs.
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
