If you've ever wanted a list of websites built with a certain technology, you've probably come across BuiltWith and Wappalyzer. They're well-established tools with large technology databases, and plenty of sales teams rely on them. Dozif covers some of the same ground, but it's built for a narrower job. This post explains the difference so you can pick the right tool.
What technology lookup tools are for
All three tools start from the same idea: read a website's code to work out which technologies it uses. Where they differ is what they do with that information and who they're designed for.
- BuiltWith is known for its broad coverage of web technologies and its lead lists, used by many B2B sales and marketing teams.
- Wappalyzer is best known for its browser extension, which shows the stack of any site you visit, and it also offers lookups and lists.
- Dozif focuses on one use case: helping web designers, developers and agencies find small and medium business websites that need their help.
We'd encourage you to try the others too. Their features and pricing change, so check their websites for current details rather than relying on any comparison, including this one.
What Dozif does differently
Dozif isn't trying to track every technology on the internet. It tracks 17,490 business websites and the website platforms, page builders, e-commerce tools and frameworks that matter to people who build websites. Then it adds the things you need to decide who to contact:
- Website problems. Every site is checked for an outdated footer year, mobile-friendliness, speed, missing HTTPS, missing meta descriptions and more.
- An opportunity score from 0 to 100 that adds those problems up, so the sites most likely to need work rise to the top.
- Niche and country for each site, so you can target the industries and markets you know.
- Contact details the business publishes on its own site, with emails checked to see whether their domain accepts mail.
- Lead lists with statuses and notes, so you can track who you've contacted.
- A free public preview. You can search and browse without an account; contact details and exports need a free account.
When to use which
- You need the widest possible technology coverage, including analytics, advertising and backend tools across very large companies: a broad tool like BuiltWith is likely the better fit.
- You want to check the stack of the site you're looking at right now: a browser extension such as Wappalyzer is quickest.
- You build or fix websites and want clients: Dozif is made for that. Filter by platform, niche and country, sort by the sites with the most problems, and reach out with something specific to say.
Try it on a platform you know
The quickest way to judge any lead tool is to look at a platform you know well and see whether the sites it surfaces are ones you'd actually want to contact. For example:
- WordPress sites with an outdated footer
- Shopify stores with a verified email
- Wix sites, best leads first
