Website alerts

Monitor your competitors' websites

Get notified when a website's technology stack changes. Be the first to know when a competitor moves to a new CMS, ecommerce platform or any other technology.


Add the websites you want to monitor here and we'll check them daily. As soon as we notice a change we'll alert you with an email.

Wappalyzer is trusted by thousands of professionals world-wide

Wappalyzer has proven to be a great tool to help us break down the aggregate analysis of how the web is doing by various technologies. Ilya Grigorik
Principal Engineer at Shopify
These days you need advanced marketing tools to stand out from the competition. Wappalyzer help us do just that. Thomas Alibert
Growth Engineer at PayFit
Wappalyzer is an integral part of our sales process, enabling us to optimise lead segmentation at scale. It’s a total game changer for our organisation. Roman Schweiger
Head of Business Development at Boomerank
Wappalyzer has been such a useful part of the HTTP Archive dataset. It's enabled us to slice the data in new ways and discover more interesting insights about the state of the web. Rick Viscomi
Senior DevRel Engineer at Google
Wappalyzer is helping our sales teams to understand prospects better and faster by having a clear view on their tech stack. Rabin Nuchtabek
Chief Growth Engineer at Skedify
Wappalyzer has been hugely valuable to slice performance data by the various detected applications at Patrick Meenan
Engineering Fellow at Catchpoint

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