Largest WordPress Sites: Data-Backed Insights for Practitioners

Understanding the scale and prevalence of platforms like WordPress is crucial for market researchers, SEO agencies, and security teams. When examining the largest WordPress sites, data from WebTrackly reveals a significant footprint: our WordPress list alone contains 21,639,326 domains. This figure offers a tangible measure of its global adoption, positioning WordPress as a dominant force in content management systems worldwide.

TL;DR

• WebTrackly identifies 21,639,326 unique domains using WordPress, representing a substantial portion of the web.
• The .com TLD alone accounts for 163,422,083 registered domains in WebTrackly's dataset, highlighting its immense scale.
• Our catalog offers 1,538 packages, including 716 TLD zone files and 79 technology/CMS website lists, for granular data access.
• One-time data packages start from USD 3.50, with Pro subscriptions at USD 29/month for 50 package downloads.
• WebTrackly's per-TLD enrichment sets provide HTTP status, IPv4/IPv6, NS, MX, page language, page title/description, and CMS data for 279,944,703 registered domains.

The Dominance of WordPress: A Data Perspective

WordPress powers a substantial segment of the internet. Our most recent dataset indicates 21,639,326 domains are built on WordPress. This figure is part of a broader collection that covers 279,944,703 registered domains across 716 TLD zone files, illustrating the sheer volume of data involved in mapping the web's technology stack. For comparison, other leading CMS platforms show significantly smaller footprints: Wix has 6,154,990 domains, Squarespace 1,958,681, and Shopify 1,152,794. This stark difference underscores WordPress's enduring popularity and adaptability across various website types.

Sizing the Web: Beyond CMS Specifics

To truly understand the "largest WordPress sites," it's essential to contextualize them within the broader domain landscape. WebTrackly's all-domains dataset comprises 272,614,863 rows. The .com TLD remains the undisputed giant, with 163,422,083 registered domains within our coverage. This means that while WordPress is widespread, its presence is naturally concentrated within popular TLDs like .com. Analyzing these vast datasets allows practitioners to identify market trends and target specific niches with precision. For instance, understanding the distribution of CMS platforms across different TLDs can inform geo-targeting strategies for SEO agencies.

The Role of TLD Zone Files in Discovery

TLD zone files are foundational for discovering domain data at scale. WebTrackly offers 716 TLD zone files, covering a significant portion of the global domain space. Each zone file package provides a list of all registered domains under a specific TLD. While these files do not directly identify the CMS, they are the raw material from which CMS-specific lists are built through subsequent enrichment processes. For many ccTLD registries, a public zone file is never published, making aggregated datasets, such as those offered by WebTrackly, the only practical route to accessing that data.

CMS Market Share: A Comparative Look

While WordPress leads significantly, examining other CMS platforms provides perspective on the overall market. WebTrackly's CMS lists reveal the following distribution:

• WordPress: 21,639,326 domains
• Wix: 6,154,990 domains
• Squarespace: 1,958,681 domains
• Shopify: 1,152,794 domains
• Joomla: 607,765 domains
• Drupal: 201,363 domains
• OpenCart: 34,033 domains
• PrestaShop: 21,645 domains
• Magento: 16,712 domains

These figures highlight WordPress's broad appeal, from small blogs to large enterprise sites, compared to more specialized platforms like Shopify, which focuses on e-commerce. Understanding these market shares helps in competitive analysis and platform migration planning. For example, a company considering a CMS change can assess the relative market penetration and ecosystem size of each option.

The Nuance of "Largest": Freshness Beats Volume

A common misconception in domain data acquisition is that a larger list is inherently better. In practice, freshness often beats sheer volume. A smaller, more recently exported list of domains will usually outperform a larger, stale dump. Domain-level data ages quickly; MX records can change, CMS platforms can be swapped, and websites can go offline. Therefore, validating MX and deliverability on your own copy in the same week you use it is a critical step for any outreach or analysis campaign.

For example, WebTrackly ensures that files are exported fresh at the time of purchase, providing the most current snapshot of domain attributes. This approach, while potentially yielding a slightly smaller number of domains than a historical archive, guarantees higher data accuracy and relevance for immediate application.

Data Enrichment: Beyond Just CMS Identification

Identifying the CMS is only one piece of the puzzle. WebTrackly's per-TLD enrichment sets extend far beyond just CMS detection. They include critical data points such as HTTP status code, protocol, IPv4, IPv6, NS, MX, page language, and page title/description. These details are invaluable for various applications:

• SEO Agencies: Can filter for sites with specific page languages or analyze MX records to identify potential email marketing targets.
• Security Teams: Can use IPv4/IPv6 data to map network footprints and NS records to identify hosting providers.
• Market Researchers: Can segment domains by HTTP status code to identify active vs. inactive sites or by page title/description for thematic analysis.

It is important to note what these enrichment sets do not contain: NO personal contact data (emails, phone numbers), NO buyer-intent signals, and NO WHOIS records (registrar, registrant, domain status, contact fields). Registration and expiry dates are available only in the collection-expiresdomains dataset, which contains 133,055,711 rows.

What We Got Wrong / What Surprised Us

One aspect that consistently surprises new practitioners is the distinction between domain-level data and lead data. We've observed that many initially treat a domain list as a direct source of sales leads. However, domain-level data is not lead data. It tells you which companies exist and what technologies they run, but it does not provide information on who to email or call. For example, knowing that 21,639,326 sites run WordPress is powerful for market analysis, but it doesn't instantly yield contact information for the site owners. This requires a separate, often manual, process of finding contact pages or public email addresses, which falls outside the scope of domain data providers like WebTrackly.

Another common misstep is underestimating the noise in newly registered domain feeds. These feeds often contain a large share of parked and pay-per-click (PPC) pages. Simply acquiring a list of new domains without further filtering can lead to inefficient outreach. Filtering by registrar and nameserver can significantly reduce this noise before any outreach efforts begin. This step alone can save considerable time and resources for marketing and sales teams.

Practical Takeaways

1. Validate Domain Freshness (Difficulty: Easy, Time: 1-2 hours per campaign): Always prioritize the freshest data available. When sourcing domain lists, ensure the data is exported recently. For example, WebTrackly exports files fresh at purchase time. Even with fresh data, validate MX records and website deliverability within the same week of use to ensure accuracy for outreach campaigns.
2. Segment by TLD and CMS (Difficulty: Medium, Time: 3-5 hours for initial setup): Do not treat all domains equally. Leverage TLD-specific data and CMS lists for targeted campaigns. For instance, if targeting businesses in Germany, use a .de zone file or a WordPress list filtered by TLD. WebTrackly offers 716 TLD zone files and specific CMS lists like WordPress (21,639,326 domains) and Shopify (1,152,794 domains).
3. Utilize Enrichment Data Beyond CMS (Difficulty: Medium, Time: 2-4 hours for advanced filtering): Go beyond just identifying the CMS. Use additional enrichment fields like HTTP status code, IPv4/IPv6, NS, MX, page language, and page title/description. These fields can refine your targeting. For example, filter for WordPress sites with specific page languages to tailor content, or analyze MX records to identify Google Workspace users, as explored in Google Workspace MX Records: Essential Data for Domain Practitioners.
4. Understand Data Limitations (Difficulty: Easy, Time: Ongoing awareness): Recognize that domain data is not lead data. It provides domain attributes, not personal contact information. Do not expect email addresses or phone numbers in these datasets, as WebTrackly does not offer personal contact data. Plan separate processes for lead generation if contact details are required.
5. Filter Noise from New Domains (Difficulty: Medium, Time: 1-3 hours for filter creation): If working with newly registered domain data, implement filtering mechanisms (e.g., by common registrars for parked domains, or by nameservers) to remove low-quality entries. This improves the efficiency of subsequent analysis or outreach.

FAQ Section

Q: How many WordPress sites are there globally?

A: Based on WebTrackly's datasets, there are 21,639,326 unique domains identified as running on WordPress. This figure represents a significant portion of the total 279,944,703 registered domains covered across our 716 TLD zone files.

Q: Can I get a list of the largest WordPress sites?

A: WebTrackly provides a comprehensive list of 21,639,326 WordPress domains. While "largest" can be subjective (e.g., by traffic, revenue), this dataset identifies all domains where WordPress is detected, allowing users to apply their own criteria for further filtering or analysis. These lists are delivered as instant CSV downloads.

Q: What kind of data is included in WebTrackly's WordPress list?

A: The WordPress list, like other per-TLD enrichment sets, includes data such as HTTP status code, protocol, IPv4, IPv6, NS, MX, page language, page title/description, and the detected CMS (WordPress in this case). It does NOT include WHOIS fields like registrar or registrant, nor personal contact information. Registration and expiry dates are available separately in the collection-expiresdomains dataset (133,055,711 rows).

Q: How often is the WordPress domain data updated?

A: WebTrackly ensures that all data packages, including the WordPress list, are exported fresh at the time of purchase. This means you receive the most current snapshot of the data available, rather than a stale, pre-generated file. This approach addresses the rapid aging of domain-level information, enhancing the utility of the data for practitioners.