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docsearch/packages/website/docs/tips.md
2020-11-26 15:01:25 +01:00

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---
title: Tips for a good search
---
DocSearch can work with almost any website, but we've found that some site
structures yield more relevant results or faster indexing time. In this page
we'll share some tips on how you can make the most out of DocSearch.
## Use a `sitemap.xml`
If you provide a sitemap in your configuration, DocSearch will use it to
directly browse the pages to index. Pages are still crawled which means we
extract every compliant link.
We highly recommend you add a `sitemap.xml` to your website if you don't have
one already. This will make the indexing faster, but will also give you more
control over which page you'd like to include or not in the indexing.
Sitemaps are also considered good practice for other aspects, including SEO
([more information on sitemaps][1]).
## Structure the hierarchy of information
DocSearch works better on structured documentation. Relevance of results is
based on the structural hierarchy of content. In simpler terms, it means that we
read the `<h1>`, ..., `<h6>` headings of your page to guess the hierarchy of
information. This hierarchy brings contextual information to your records.
Documentation starts by explaining generic concepts first and then goes deeper
into specifics. This is represented in your HTML markup by the hierarchy of
headings you're using. For example, concepts discussed under a `<h4>` are more
specific than concepts discussed under a `<h2>` in the same page. The sooner the
information comes up within the page, the higher is it ranked.
DocSearch uses this structure to fine-tune the relevance of results as well as
to provide potential filtering. Documentations that follow this pattern often
have better relevance in their search results.
Finding the right depth of your documentation tree and how to split up your
content are two of the most complex tasks. For large pages, we recommend having
4 levels (from `lvl0` to `lvl3`). We recommend at least three different levels.
_Note that you don't have to use `<hX>` tags and can use classes instead (e.g.,
`<span class="title-X">` ). You will need to update the `selectors`
configuration value._
## Set a unique class to the element holding the content
DocSearch extracts content based on the HTML structure. We recommend that you
add a custom `class` to the HTML element wrapping all your textual content. This
will help narrow selectors to the relevant content.
Having such a unique identifier will make your configuration more robust as it
will make sure indexed content is relevant content. We found that this is the
most reliable way to exclude content in headers, sidebars, and footers that are
not relevant to the search.
## Add anchors to headings
When using headings (as mentioned above), you should also try to add a custom
anchor to each of them. Anchors are specified by HTML attributes (`name` or
`id`) added to headers that allow browsers to directly scroll to the right
position in the page. They're accessible by clicking a link with `#` followed by
the anchor.
DocSearch will honor such anchors and automatically bring your users to the
anchor closest to the search result they selected.
## Marking the active page(s) in the navigation
If you're using a multi-level navigation, we recommend that you mark each active
level with a custom CSS class. This will make it easier for DocSearch to know
_where_ the current page fits in the website hierarchy.
For example, if your `troubleshooting.html` page is located under the
"Installation" menu in your sidebar, we recommend that you add a custom CSS
class to the "Installation" and "Troubleshooting" links in your sidebar.
The name of the CSS class does not matter, as long as it's something that can be
used as part of a CSS selector.
## Consistency of your content
Consistency is a pillar of meaningful documentation. It increases the
**intelligibility** of a document and shortens the time required for a user to
find the coveted information. The document **topic** should be **identifiable**
and its **outline** should be demarcated.
The hierarchy should always have the same size. Try to **avoid orphan records**
such as the introduction/conclusion, or asides. The selectors must be efficient
for **every document** and highlight the proper hierarchy. They need to match
the coveted elements depending on their level. Be careful to avoid the **edge
effect** by matching unexpected **superfluous elements**.
Selectors should match information from **real document web pages** and stay
ineffective for others ones (e.g., landing page, table of content, etc.). We
urge the maintainer to define a **dedicated class** for the **main DOM
container** that includes the actual document content such as
`.DocSearch-content`
Since documentation should be **interactive**, it is a key point to **verbalize
concepts with standardized words**. This **redundancy**, empowered with the
**search experience** (dropdown), will even enable the **learn-as-you-type
experience**. The **way to find the information** plays a key role in
**leading** the user to the **retrieved knowledge**. You can also use the
**synonym feature**.
## Avoid duplicates by promoting unicity
The more time-consuming reading documentation is, the more painful and reluctant
its use will be. You must avoid hazy points or catch-all. With being unhelpful,
the catch-all document may be **confusing** and **counterproductive**.
Duplicates introduce noise and mislead users. This is why you should always
focus on the relevant content and avoid duplicating content within your site
(for example landing page which contains all information, summing up, etc.). If
duplicates are expected because they belong to multiple datasets (for example a
different version), you should use [facets][3].
## Conciseness
What is clearly thought out is clearly and concisely expressed.
We highly recommend that you read this blog post about [how to build a helpful
search for technical documentation][2].
[1]: https://www.sitemaps.org/index.html
[2]:
https://blog.algolia.com/how-to-build-a-helpful-search-for-technical-documentation-the-laravel-example/
[3]: https://www.algolia.com/doc/guides/searching/faceting/