Event Registry vs PublicWWW
Event Registry
eventregistry.orgPublicWWW
publicwww.comSide by side
| Figure | Event Registry | PublicWWW |
|---|---|---|
| Price from | Free | $199/mo |
| Free plan | Yes | Yes |
| Free trial | Yes | — |
| Open source | — | — |
| Web | Yes | Yes |
| API | Yes | Yes |
| Plans published | 4 | 3 |
| Spec score · Web Data Providers Software | 8.4 (#4) | 7.8 (#7) |
| Support | The pricing page describes support tiers ranging from no direct support to a dedicated technical team and personal account manager. | The site lists [email protected] as its support contact. |
Plans
Event Registry
- FreeFree
- Paid API accessPrice not published
- Free planFree
- 5K Plan$90 a month
In their own words
Event Registry
Event Registry has no write-up on Specifiction yet; its figures are above.
PublicWWW
PublicWWW is a web and API search service for locating alphanumeric snippets, signatures, or keywords in HTML, JavaScript, CSS, and plain text. Queries support exact phrases, multiple terms, alternatives, exclusions, depth, site and IP filters, and regular expressions. Results are ordered by website popularity and usually appear within a few seconds. The homepage reports 969,312,480 indexed pages as of October 7, 2026. Free access reveals sites in the top 1,000,000; registration opens results from the top 3,000,000, while remaining results require payment. The Free plan costs nothing and allows 1,000 rows per search, a 100-row cluster, and 20 rows with snippets. Business costs $199 a month and Enterprise $499 a month, with larger limits. CSV downloads are available, and the paid-key API returns JSON, XML, CSV, TSV, NDJSON, or plain text. Signed-in users can save, combine, filter, and download domain clusters.