The spatial data search engine


Language English

Launched 3 March 2018
Closed No

Developer Moules, Jonathan

Country of Origin US America

2018 - [...] GeoSeer

Topic Data Search

Region No Limitation

Technical functionalities
Search engine for databases, repositories, portals and other closed (deep web) or open content collections
Search engine for special file formats

Used SeEn GeoSeer

Older Version Internet Archive / WebCite

GISUSER (2019): »GeoSeer is a search engine covering over 1.2 million spatial datasets from over 180,000 public OGC services, including Web Map Services (WMS), Web Feature Services (WFS), Web Coverage Services (WCS), and Web Map Tile Services (WMTS). GeoSeer has provided a free web-search since early 2018, making public OGC services more discoverable and accessible to end users. The API also provides key features that are not included in the free web-search. This includes a services search feature for finding services rather than datasets, the ability to search by spatial location, and the ability to list all datasets on a service.« Source


Critical points

Features & Functionality

»The GeoSeer spider scrapes lots of different sources, using various API's to discover the many OGC web-services that are registered with them. It then downloads the GetCapabilities document for every web-service it can find (GetCapabilities is an OGC standard XML document with lots of information about what layers exist in a service). We then post-process all of those GetCapabilities documents, removing duplicate layers, cleaning them up, determining the spatial extent, and finally making them searchable. The end result is a database with hundreds of thousands of layers that sits behind a simple, fast web-page.« Source


Example results page for "sand": Source

References & further Publications

Wikipedia (EN):
Wikipedia (Others):

Other Sources

GeoSeer Blog URL:
GeoSeer Stats URL:
Re: [OSGeo-Discuss] open repository for general research GIS data ? URL:
Geospatial World (2019): GeoSeer releases API for their data search engine URL:

Created: 2019-05-01