BuiltWith Recommendations API

Introduction

Get XML and JSON results of recommendations for technologies for websites. Learn more about our Future Customer recommendation system.

The general access method is as follows -
https://api.builtwith.com/rec1/api.[xml|json]?KEY=[YOUR KEY]&LOOKUP=[DOMAINS,]

Authentication

You must provide your API key in each lookup. See the examples for how this works.

Login or Create a Free Account to get your API key.

Get Recommendation Example

XML Get Single Domain
https://api.builtwith.com/rec1/api.xml?KEY=[YOUR KEY]&LOOKUP=hotelscombined.com

JSON Get Single Domain
https://api.builtwith.com/rec1/api.json?KEY=[YOUR KEY]&LOOKUP=builtwith.com

JSON Get Multiple Domain
https://api.builtwith.com/rec1/api.json?KEY=[YOUR KEY]&LOOKUP=builtwith.com,wayfair.com,hotelscombined.com

Reference

Parameters

The following GET parameters can be supplied for lookups

Name	Examples	Required
KEY	00000000-0000-0000-0000-000000000000 Sign up for Free or Login to get a key.	Yes
LOOKUP	wayfair.com builtwith.com The root domain you'd like to do a lookup for. This can be CSV of up to 16 root domains max.	Yes

Responses

The Recommendations API will respond with a document in the format -

rec[Recommendations->tech]

tech

tech is the sub-option in the Recommendations array.

Name	Example	Description
name	Hotjar	The name of the technology
link	https://hotjar.com	The link to the recommended technology
tag	cms	The top level technology category
categories[string]	Ticketing System	String array of sub-categories for the technology
stars	3	Value between 0 and 4 - where 4 is a more relevant technology
match	0.0234332	Value generally less than 0.5 allows sorting of results beyond star rating - the higher the more relevant recommendation

rec

rec is the top level object.

Name	Example	Description
Domain	tjoos.com	The domain name of the match
Compiled	2023-07-23T13:52:29.335Z	The date the recommendation was compiled