/** The key of the configuration. e.g. cpu */
    String CRAWLER_HOTTHREAD_TYPE = "crawler.hotthread.type";

    /** The key of the configuration. e.g. resourceName,X-Parsed-By,Content-Encoding.*,Content-Type.*,X-TIKA.*,X-FESS.* */
    String CRAWLER_METADATA_CONTENT_EXCLUDES = "crawler.metadata.content.excludes";

    /** The key of the configuration. e.g. title=title:string<br>
     * Title=title:string<br>

// Qutheory LLC : http://qutheory.io
// Submitted by Jonas Schwartz <******@****.***>
vapor.cloud
vaporcloud.io

// Rackmaze LLC : https://www.rackmaze.com
// Submitted by Kirill Pertsev <kika@rackmaze.com>
rackmaze.com
rackmaze.net

// Rakuten Games, Inc : https://dev.viberplay.io
// Submitted by Joshua Zhang <******@****.***>
g.vbrplsbx.io