builtwith.com

In One Sentence

BuiltWith.com is a website technology stack analysis tool launched by a U.S.-based company, designed to identify the technology frameworks, CMS platforms, analytics tools, hosting services, and third-party plugins used behind any website. It is widely used by digital marketers, SEO consultants, and developers around the world. Its core value lies in quickly uncovering competitors’ technology choices, enabling more targeted optimization or sales strategies. Users typically choose it to gain data support for B2B lead generation, technical audits, or market research.

Business Overview

BuiltWith was founded in 2007 and is headquartered in Sydney, Australia, with an operations team later established in the United States. It is one of the veteran tools in the website technology analysis space. Its core business is continuously scanning more than 500 million websites across the internet with crawlers and building a large technology fingerprint database. Users only need to enter a domain name to view dozens of dimensions of technical details, including the programming languages, JavaScript libraries, ad networks, CDNs, payment processors, and more used by that website. In terms of market position, BuiltWith is often compared with Wappalyzer and SimilarTech, but it stands out more in data depth and B2B lead export capabilities. Its customers include small and midsize SEO agencies, marketing departments at large enterprises, and developers who need to analyze competitors’ technology stacks in bulk. It is worth noting that this tool is not a website builder or hosting service, but a pure data intelligence platform.

Who It’s For

BuiltWith is best suited for three types of users. First, B2B sales and business development teams can quickly generate prospect lists through technology stack filters, such as “websites using Shopify but not Mailchimp.” Second, SEO and digital marketing consultants can use it to analyze competitors’ technology upgrades or migration histories. Third, developers or technical decision-makers can refer to mainstream industry choices when evaluating technology options. For individual webmasters or small teams, if you only need to check one or two websites occasionally, the free version’s allowance of 50 queries per month may be enough, but advanced export features require a paid plan. Large enterprise customers are better suited to the Enterprise plan because of higher API quota and bulk analysis needs. It is less suitable for pure content creators or general users without a technical background, as the reports contain a significant amount of technical terminology.

Key Features and Highlights

• Technology stack identification: Covers more than 20,000 technologies, including CMS platforms, ecommerce platforms, analytics tools, ad networks, CDNs, payment gateways, and more, with frequently updated data.
• Competitor technology migration monitoring: Tracks historical technology changes on specified websites, such as when a site migrated from WordPress to a Headless CMS.
• B2B lead generation: Exports company lists through technology filters, such as “uses Salesforce but not HubSpot,” with CSV download support, making it suitable for cold email outreach.
• CRM and API integrations: Supports integrations with tools such as Salesforce, HubSpot, and Zapier, allowing automatic data synchronization and improved workflow efficiency.
• Technology usage trend reports: Shows changes in a technology’s market share by industry, region, or time period, helping inform technology selection decisions.
• Backlink and traffic data: Although not a core feature, it also provides basic domain backlink and estimated traffic references to support SEO analysis.

Pricing Analysis

BuiltWith is in the mid-to-high price range among similar tools. The basic paid plan is the Pro plan, priced at USD 50 per month, or roughly RMB 360. Annual billing can reduce the cost to about USD 40 per month. The Pro plan includes 500 queries per month, full technology report exports, and access to historical data. Higher-tier plans, such as the Team plan at about USD 125 per month and the Enterprise plan, which requires contacting sales, add team collaboration and more API calls. Compared with Wappalyzer’s free browser extension, BuiltWith has a noticeably higher paid entry point; however, compared with SimilarTech’s custom pricing, the Pro plan is still reasonably cost-effective. As for hidden costs, the official site does not state a clear refund policy, so users should be cautious before paying. Some advanced features, such as CRM integrations, are only unlocked on higher-tier plans. For Chinese users, paying in U.S. dollars may also incur additional cross-border transaction fees.

How Chinese Users Can Use It

In terms of connectivity, BuiltWith’s official website can be accessed directly from mainland China, though occasional slow loading may occur, especially on report generation pages. For payment, the official site supports international credit cards such as Visa and Mastercard, but does not support Alipay or WeChat Pay, which is inconvenient for users without a foreign-currency credit card. Is a VPN or proxy required? Basic lookup functions do not require one, but if you need to export data in bulk or use the API, a stable network environment is recommended to avoid timeouts. There is currently no fully equivalent domestic alternative in China, though some needs can be partially met through the “website technology detection” module of “站长工具” or the “CMS recognition” feature of “爱站网.” However, their data depth and update frequency are far behind BuiltWith. For invoicing, as an overseas company, BuiltWith cannot provide mainland Chinese tax invoices, but it can issue English invoices. Enterprise users will need to handle reimbursement compliance on their own.

Pros and Cons

Pros:

• ✅ Large technology database covering more than 500 million websites, with relatively high data accuracy
• ✅ Unique technology migration monitoring, capable of tracking competitors’ historical technology changes
• ✅ Powerful B2B lead export features, supporting multi-dimensional filtering and CRM integrations
• ✅ Provides industry trend reports to support technology selection decisions
• ✅ Clean interface and relatively fast query response times

Cons:

• ❌ Relatively expensive, with the Pro plan costing USD 50 per month and no clear refund guarantee
• ❌ Does not support Alipay or WeChat Pay, creating a higher payment barrier for Chinese users
• ❌ Cannot issue Chinese tax invoices, making corporate reimbursement difficult
• ❌ Free version has very limited queries, only 50 per month, which is mostly enough only for trial use
• ❌ Some technology detection can lag behind, especially for niche or in-house frameworks
• ❌ Network stability depends on overseas routes and may become sluggish during peak periods

Comparison with Similar Products

BuiltWith mainly competes with three tools. The first is Wappalyzer, which offers a free browser extension and is suitable for quickly checking the technology stack of a single website, but its data export and bulk analysis capabilities are weaker, making it better for light users. The second is SimilarTech, which focuses more on website traffic and audience data, with technology stack analysis being only one of its features; however, its pricing is opaque and requires contacting sales. The third is WhatRuns, which is also mainly a browser extension. It is free, but its data coverage is smaller. By comparison, BuiltWith differentiates itself by focusing more deeply on technology stacks and B2B sales use cases, while also preserving more complete historical data. If you need to export leads frequently and integrate with a CRM, BuiltWith is the more professional choice. If you only need to check sites occasionally, the free version of Wappalyzer is entirely sufficient.

Final Recommendation

BuiltWith is suitable for the following scenarios: you need to analyze competitor technology stacks at scale, generate B2B sales leads, or track industry technology trends, and you have sufficient budget, starting from USD 50 per month. It is not suitable if you are an individual webmaster who only checks one or two websites occasionally, have a limited budget, or require localized Chinese payment and invoicing support. It is recommended to test data accuracy with the free version first and confirm that its technology fingerprint coverage fits your target industry, such as ecommerce or SaaS, before upgrading to the Pro plan. If your team needs multi-user collaboration, you may want to skip the Pro plan and choose the Team plan directly, as the Pro plan is limited to a single user. For Chinese users who cannot resolve payment and invoicing issues, domestic alternatives or a combined setup with the free version of Wappalyzer may be better options.