OpenGraph is the easiest way to preview and generate open graph meta tags for any website.

Webmaster Tools

Enter a URL, receive information. Normalize metadata. Get HTML markup. Take a screenshot. Identify tech stack. Generate a PDF. Automate web scraping. Run Lighthouse.

A free, simple, client-less dynamic DNS alternative that uses the DNS protocol itself as the client mechanism to provide unique benefits.

Fingerprint web apps. Gather intel on server & client-side technologies. Scan multiple virtual hosts on the same IP. Do passive reconnaissance. Map attack surface.

Monitor, track and archive website changes. Compare visual, text, keyword, image and HTML change history. Get detailed alerts.

Monitor website changes for web change detection alerts and reports.

Track and Monitor Website Changes. Get alerted on web page updates and build competitive archives of website screenshots.

Watch (parts of) webpages and get notified when something changes via e-mail, on your phone or via other means. Highly configurable. - GitHub - thp/urlwatch: Watch (parts of) webpages and get notif...

Trackly tracks webpages you care about and notifies you by email when they change

Download WebChangeMonitor for free. Monitors a number of web pages for changes. Monitors a number of web pages and tracks changes based on the content of the web pages. Allows to monitor several protocols, including HTTP and HTTPS.

Lookup DNS records with exact performance measuring, monitor your dns servers!

Fast, free and reliable DNS Lookup. Type a domain and click audit to generate DNS report for your domain name.

DNSTools lets you perform DNS lookups, pings, traceroutes, and other utilities, from several locations around the world.

Csper evaluator is a content security policy evaluator. It scans any domain for content security policy and provides security recommendations.

Powerful and easy to use software to build professional websites, blogs or ecommerce stores

Free HTTPS SSL, domain, AMP , PWA, site export. Fast Google ranking, 250+ awesome templates, unlimited pages and bandwidth.

Universe is the first website builder and commerce platform built for mobile devices. With its magical drag and drop interface, anyone can easily create a website and start selling online in minutes from anywhere.

Don't waste your time making design specs by hand! Instantly create design specs right in your favorite graphic design tool by extending Adobe Photoshop, Illustrator & Fireworks with Specctr plugin.

Pull content from anywhere and serve it fast with Astro's next-gen island architecture. Astro is the web framework that you'll enjoy using.

ProcessWire is a free PHP open source CMS with a great API built to save you time and make development fun at any scale.

Cargo is a professional site building platform for designers and artists.