Business Operations·Standings

Web Data Providers Software

Web data providers collect and supply information about websites, businesses, news, and other online activity; choose based on the data you need and how you plan to receive it.

Compare delivery methods, refresh frequency, historical records, custom datasets, geographic coverage, and data categories. The signal score is out of 10; API, open-source, and free-tier marks show whether those options are listed.

  • 14 platforms
  • 4 with a public API on this page
  • 10 with a free tier
  • Checked 28 Sept 2026
  1. 1
    O
    OpenSanctionsopensanctions.org

    Open-source database tracks people and organizations in sanctions and other public-interest records.

    7.7 APIOpenFree Free tier
  2. 2
    B
    BuiltWithbuiltwith.com

    Website technology and intent data are available on the web, in an extension, and through an API.

    7.5 APIOpenFree Free tier
  3. 3
    C
    Coresignalcoresignal.com

    Professional contact database with web and API access; 7-day trial, plans from $49/mo.

    7.4 APIOpenFree Free tier · from $49/mo
  4. 4
    O
    OpenCorporatesopencorporates.com

    Corporate records service with web and API access; free plan, paid plans from £2,250/yr.

    7.2 APIOpenFree Free tier · from £2,250/yr
  5. 5
    W
    Wappalyzerwappalyzer.com

    Technographic data from public websites supports prospecting, record enrichment, and market monitoring; free plan.

    6.3 APIOpenFree Free tier · from $250/mo
  6. 6
    ER
    Event Registryeventregistry.org

    News service follows world events in real time and offers web access, an API, and scheduled reports.

    6.1 APIOpenFree Free tier · from $90/mo (lower tiers unpriced)
  7. 7
    D
    Diffbotdiffbot.com

    AI service turns online information into linked knowledge through an API, web app, or self-hosting.

    5.8 APIOpenFree Free tier · from $299/mo
  8. 8
    P
    PublicWWWpublicwww.com

    Web search tool finds matching terms in HTML, JavaScript, CSS, and plain text; free plan available.

    5.8 APIOpenFree Free tier · from $199/mo
  9. 9
    SM
    Shodan Monitormonitor.shodan.io

    Monitoring service scans devices on networks and alerts users when unexpected devices appear.

    5.2 APIOpenFree From $69/mo
  10. 10
    IA
    5.1 APIOpenFree Free tier
  11. 11
    WI
    Webz.iowebz.io

    Historical web data service offers custom datasets and feed or API delivery, with a free plan.

    4.7 APIOpenFree Free tier
  12. 12
    DC
    Dataprovider.comdataprovider.com

    Global custom web datasets cover business, ecommerce, jobs, property, news, and other categories; pricing on request.

    4.0 APIOpenFree —
  13. 13
    SD
    Similarweb Digital Datasimilarweb.com

    Global datasets cover website visits, mobile apps, search, audiences, and market intelligence.

    4.0 APIOpenFree —
  14. 14
    TA
    Thinknum Alternative Datathinknum.com

    Global datasets cover company sites, job listings, apps, ecommerce, real estate, and web traffic.

    4.0 APIOpenFree —

Places #1, #2, #3, #4, #5 on this board are open to sponsors. Take #1 · Other ways to advertise

How to choose

What kind of web data do I need?

Start with the data categories and geographic coverage that fit your work.

If you need a tailored collection, compare whether custom datasets are available.

How will I receive the data?

Choose a delivery method that fits how you plan to use the information; the board compares data delivery and platform availability, including web and API access.

An API is a way for software to request information from another service. Check the API mark if that connection matters to you.

How current does the data need to be?

Compare refresh frequency if you need updates on a particular schedule.

Check historical data availability if you need records from earlier periods.

Can I try it before paying?

Look for the free-tier mark and compare the listed pricing model and starting price. Pricing on request means you need to ask the provider for a quote.

A free tier and a free trial are different offers, so check the provider's terms before choosing.

Can I run it where I need it?

Check the platform information for the access method you need, such as web, API, self-hosted, extension, Linux, or iOS.

If you need to read or change the code, check the open-source mark and the provider's license.

Questions

What should I compare when choosing a web data provider?

Compare data categories, geographic coverage, delivery method, refresh frequency, historical data, custom datasets, platform support, and pricing.

What does the API mark mean?

It indicates that a provider has a public API, a way for software to request information from a service.

How do I know if a web data provider has a free option?

Check the free-tier mark and pricing details. A free tier is not the same as a free trial.

What does pricing on request mean?

The provider does not list a price here; contact the provider to ask for pricing.

Why does refresh frequency matter for web data?

It tells you how often the provider updates its data, which helps you judge whether the update schedule suits your needs.

Some top positions on this board can be paid placements, standing where they were sold. The facts on each platform are not for sale. How we rank · Disclosure