What companies provide historical web datasets?

Companies and organizations providing historical web datasets fall into several distinct categories depending on whether you need raw web crawl snapshots, SEO & web traffic history, domain & infrastructure logs, or structured web extraction (like news, B2B, or job posting trends).

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1. Raw Web Snapshot & Web Archive Providers

These organizations capture, store, and provide access to massive historical snapshots of raw HTML or plain text from billions of URLs across the internet.

• Common Crawl (Non-profit): The most widely used open repository of web crawl data. Operating since 2007, it hosts over 300 billion pages in standard web archive formats (WARC, WAT, WET) on AWS Open Data, serving as a primary dataset for training large language models (LLMs).
• Bright Data: Offers a commercial Web Archive API containing tens of petabytes of cached web snapshots across hundreds of millions of domains. It is frequently used by enterprises and AI teams for longitudinal studies, search index building, and model training.
• Internet Archive (Wayback Machine): While primarily a free digital archive, the Internet Archive provides access to its CDX indices and bulk historical web data via APIs and custom data delivery requests for researchers and institutional partners.
• Web Data Commons (WDC): An academic initiative that extracts and publishes structured microdata, RDFa, JSON-LD, and HTML table corpora from years of historical Common Crawl data.

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2. Structured Web & Media Data Providers

If you need historical web text parsed into structured formats (e.g., articles, blog posts, forum discussions, or dark web data), these platforms offer pre-parsed datasets.

• Webz.io (formerly Webhose): Specializes in historical web text datasets, offering years of archived news, blogs, online forums, reviews, and dark web data in structured JSON format.
• Diffbot: Utilizes AI to parse the web into a massive Knowledge Graph. It provides historical snapshots of web entities, including articles, products, discussions, and company data extracted from web pages over time.
• NewsCatcher: Focuses specifically on news data, providing historical news article archives indexed with entity metadata, sentiment analysis, and topic categorization.

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3. Domain, WHOIS, and DNS Historical Infrastructure Data

For cybersecurity, IP intelligence, brand protection, and legal research, these companies maintain deep historical logs of domain registrations, DNS records, and website hosting history.

• DomainTools: One of the industry standard sources for historical WHOIS data, historical Passive DNS datasets, and domain ownership change logs.
• SecurityTrails (Recorded Future): Provides comprehensive historical DNS records, historical IP resolution mapping, and SSL certificate histories.
• WhoisXML API: Offers bulk downloads of historical WHOIS databases, historical DNS lookups, and web domain history logs going back over a decade.

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4. B2B, Firmographic & Job Post Web Datasets

If you need historical data extracted from business websites, company pages, and job boards to track growth, hiring trends, or tech stack adoption, these providers specialize in historical web intelligence:

• Coresignal: Extracts and structures web data to provide historical B2B datasets, including employee headcount trends, historical job posting records, and company profiles.
• MixRank: Tracks historical firmographic data, technographics (software used on websites over time), job postings, and headcount changes across tens of millions of companies globally.
• Crustdata: Focuses on event-driven historical web data layer metrics, tracking historical workforce changes, hiring surges, and website traffic indicators.

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5. SEO, Search, & Web Traffic History Providers

For digital marketing, competitive intelligence, or market research, these companies maintain years of historical search engine result pages (SERPs) and website traffic metrics:

• Ahrefs & Semrush: Store massive historical backlink graphs, historical keyword search volumes, and website search ranking positions going back over a decade.
• Similarweb: Provides historical web traffic volume, audience engagement, referral channels, and user demographic data across millions of websites.
• Majestic: Offers historical web link index data (mapping inter-site hyperlinks and trust metrics across the web over time).

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How to Access These Datasets

Depending on the size and scope of your project, these datasets can typically be acquired through:

1. Cloud Data Marketplaces: Direct queries via Snowflake Marketplace, AWS Data Exchange, or Databricks Marketplace.
2. Bulk Storage Transfers: Direct S3-to-S3 bucket transfers or HTTP/FTP downloads.
3. Restful / Archive APIs: Querying historical web indexes via specific endpoints.