github.com
codex-seo helps analyze backlinks, find link opportunities, and support SEO outreach workflows.
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cognitiveseo.com
CognitiveSEO helps analyze backlinks, find link opportunities, and support SEO outreach workflows.
github.com
ContentSwift helps plan, write, optimize, or analyze content for SEO and search visibility.
github.com
crawlie crawls websites to audit SEO, accessibility, performance, and technical page issues.
square.github.io
Cube is a system for collecting timestamped events and deriving metrics, built on MongoDB and released under the Apache License on GitHub. It accepts events via UDP, HTTP POST, and WebSockets, defines a query language for retrieving events, and groups events by time to compute aggregate metrics.
dank.tools
A web tool that generates Discord timestamp tags from a chosen date and time, so each user sees it in their own timezone. It offers short time, long date, and relative formats, and shows a preview before copying.
datascienceweekly.org
Data Science Weekly is a free weekly data science newsletter published by DATAYOU, LLC. It delivers curated data science news, articles, job listings, tutorials, and learning resources to subscribers every Thursday. The service also maintains an archive of past newsletter issues and offers additional data science guides and course materials on its website.
This is the website for the second edition of Data Visualization: A Practical Introduction by Kieran Healy, forthcoming from Princeton University Press. It contains a complete draft of the manuscript, and the book is not yet available for pre-order. According to the preface, the book teaches the ideas and methods of data visualization in a reproducible way.
data-magnum.com
Data-Magnum is a full-stack technology services company. It offers AI-native product engineering and application development, digital marketing and growth services, enterprise systems implementation (Salesforce, MuleSoft, SAP), custom web and mobile app development, and managed IT support services.
github.com
dataforseo-claude helps research keywords, search demand, related terms, and content opportunities for SEO.
datatalks.club
DataTalks.Club is an online community for data science professionals, ML engineers and AI practitioners. It offers free courses, weekly podcasts, webinars, workshops and book discussions, along with articles, a Slack group and a weekly newsletter. Events and podcast episodes cover topics such as machine learning, AI platforms and LLM engineering.
debugbear.com
DebugBear checks page speed, performance, technical issues, and web quality signals.
github.com
Desbordante is a high-performance open-source data profiler. It uses a variety of algorithms to discover different patterns in data and supports running data cleaning scenarios using these algorithms. The tool is available as a console version and an easy-to-use web application.
diagnoseo.com
DiagnoSEO helps plan, write, optimize, or analyze content for SEO and search visibility.
github.com
digital-marketing-pro helps plan, write, optimize, or analyze content for SEO and search visibility.
addynrpfp.vercel.app
A web tool for viewing and downloading a Discord user's avatar and banner. It accepts a Discord User ID entered by the user and downloads images at a maximum quality of 4096px. It is made by @addy.nr and powered by Cloudflare Workers.
github.com
django-meta helps manage meta tags, Open Graph data, and social sharing previews for websites.
github.com
docmd helps plan, write, optimize, or analyze content for SEO and search visibility.
dota2protracker.com
Dota2ProTracker is a website that collects Dota 2 data from 7000+ MMR and professional matches to create Dota 2 meta insights and the best builds for each hero in every position. It offers meta analytics, pro player stats, hero encyclopedias, drafting tools and item builds.
github.com
enterprise-commerce checks page speed, performance, technical issues, and web quality signals.
european-alternatives.eu
European Alternatives is a directory that helps users find European alternatives for digital services and products, such as cloud services and SaaS products. It lists alternatives across categories including web analytics, cloud computing platforms, content delivery networks, email providers, VPS hosters and search engines. It explains benefits such as supporting local businesses, data protection, VAT billing and similar legal requirements within the EU.
simile-widgets.org
Exhibit is an open source publishing framework for creating data-rich interactive web pages. It provides advanced text search and filtering, along with interactive maps, timelines and other visualizations. The software is licensed under the BSD license and was originally sponsored partially by The Andrew W. Mellon Foundation as part of the SIMILE project.
followerwonk.com
Followerwonk is a Twitter analytics service offering follower tracking and bio search. It provides follower and unfollower tracking, account comparison, bio search with boolean operators, follower demographics, engagement metrics, bot detection, and export of follower lists, with options to search accounts across multiple platforms.
frase.io
Frase io tracks rankings, SERP visibility, and keyword performance across search results.