# Website snapshots (WARC)

\
This viewer is used to explore (previous versions of) websites. Different snapshots of previous versions of the websites can be stored for later exploration and comparison.

The WARC (**W**eb **ARC**hive) format specifies a method for combining multiple digital resources into an aggregate archival file together with related information. The **WARC** format is a revision of the Internet Archive's **ARC** File Format \[ARC\_IA] format that has traditionally been used to store "web crawls" as sequences of content blocks harvested from the World Wide Web.

The **WARC** format generalizes the older format to better support the harvesting, access, and exchange needs of archiving organizations. Besides the primary content currently recorded, the revision accommodates related secondary content, such as assigned metadata, abbreviated duplicate detection events, and transformations as a result of content updates. The following example shows a list of possible snapshots from which to select one.

![](/files/-MiaETpb2_nZsYrK2BAL)

\
List of all available snapshots. By selecting one from the list will automatically switch to the web content at the time the snapshot was produced.

**Example:** [https://openaccess.libnova.com/view/60](https://openaccess.libnova.com/view/60/)

![](/files/-MiaEcay6KaSn-xrkV16)

In this view all the metadata associated with the record will be located.

**Metadata types:**

1. **"String"** is for information only.
2. **“String”** with a linked field; when you click on the icon it performs a metadata search on all records.
3. "**URL**" the added value will be converted into a url.
4. **“Tag”** are the tags or keywords related to the record and clicking on it will search all records that have the related keyword.
5. In this part all the metadata are located of type **"Location"** depending on the data type of the metadata, it can be a descriptor with the latitude and longitude of the map or a descriptor with location information.

**Note:** All the metadata associated will appear in the bottom part of the record viewer.


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.libnova.com/libnova-openaccess-en/front-end/content-viewers/website-snapshots-warc.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.