| Package | Description | 
|---|---|
| com.norconex.collector.http.crawler | |
| com.norconex.collector.http.url | |
| com.norconex.collector.http.url.impl | 
| Class and Description | 
|---|
| ICanonicalLinkDetector Detects and return any canonical URL found in documents, whether from
 the HTTP headers (metadata), or from a page content (usually HTML). | 
| ILinkExtractor Responsible for finding links in documents. | 
| IURLNormalizer Responsible for normalizing URLs. | 
| Class and Description | 
|---|
| Link Represents a link extracted from a document. | 
| Class and Description | 
|---|
| ICanonicalLinkDetector Detects and return any canonical URL found in documents, whether from
 the HTTP headers (metadata), or from a page content (usually HTML). | 
| ILinkExtractor Responsible for finding links in documents. | 
| IURLNormalizer Responsible for normalizing URLs. | 
| Link Represents a link extracted from a document. | 
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