Ping the Semantic Web

csv2rdf4lod-automation is licensed under the [Apache License, Version 2.0](https://github.com/timrdf/csv2rdf4lod-automation/wiki/License)

What is first

What we will cover

This page describes http://pingthesemanticweb.com and http://sindice.com/developers/pingApi, and how to use them. These two services accept pointers to Linked Data URIs or files. They index them, so it's easier for others to find your data. Sindice seems to be the leader in this capability.

Let's get to it!

Ping the Semantic Web

$CSV2RDF4LOD_HOME/bin/util/ptsw.sh returns the URLs required to notify Ping the Semantic Web about the RDF documents listed.

Must be done from a machine whose IP is registered at http://pingthesemanticweb.com

Success 1

http://homepages.rpi.edu/~lebot/lod-links/state-fips-dbpedia.ttl

curl http://pingthesemanticweb.com/rest/?url=http%3A%2F%2Fhomepages.rpi.edu%2F~lebot%2Flod-links%2Fstate-fips-dbpedia.ttl
<response>
	<message>Thanks for pinging Ping the Semantic Web.</message>
	<flerror>0</flerror>
</response>

Success 2

http://homepages.rpi.edu/~lebot/lebot.foaf

curl http://pingthesemanticweb.com/rest/?url=http%3A%2F%2Fhomepages.rpi.edu%2F~lebot%2Flebot.foaf
<response>
	<message>Thanks for pinging Ping the Semantic Web.</message>
	<flerror>0</flerror>
</response>

Failures

Would not work on:

• https://raw.github.com/timrdf/csv2rdf4lod-automation/master/doc/instances/person/lebot.foaf (scheme? domain? it's the same file as above.)
• http://logd.tw.rpi.edu/source/twc-rpi-edu/file/iogds/version/2011-Nov-15/conversion/twc-rpi-edu-iogds-2011-Nov-15.void.ttl

<response>
	<message>Ping the Semantic Web is not allowed to index this URL.</message>
	<flerror>1</flerror>
</response>

Sindice

http://sindice.com/developers/pingApi

What is next

• csv2rdf4lod-automation does not announce new datasets by default; it must be enabled using CSV2RDF4LOD environment variables.