> For the complete documentation index, see [llms.txt](https://docs.dataloy.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.dataloy.com/release-6.15/dataloy-distance-table-ddt/dataloy-distance-table-ddt.md).

# About Dataloy Distances

**Dataloy Distances** allows port and routing point searches when building sailing routes and is available to both commercial and non-commercial users. Sailing routes are presented graphically in a map and are based on analysis of possible routing options.

![](/files/-M3KueCMUk63vw4EitJZ)

* The "**Dataloy Distances"** is highly acclaimed for its extensiveness and accuracy.
* Currently, **Dataloy Distances** holds more than **10,000** ports and maritime locations and the routes are a result of analysis of more than million of route segments effectively contributing to the accuracy of a calculation.  

![The number of waypoints is vital to the accuracy of voyage calculation.](/files/-M3KtdoVXu62N4WNK94-)

* Automatic **Emission Controlled Areas** **(ECA)** avoidance. 
* Automatic **High-Risk Area (HRA)** avoidance. 
* Updated daily.

{% hint style="warning" %}
**Irregular** **Routing or Missing Ports or Routing Points**

If irregular routing is experienced - *please* [***contact Dataloy***](mailto:ddt@dataloy.com).

Ports and routing points are constantly added to the DDT. If a port or a routing point cannot be found - *please* [***contact Dataloy***](mailto:ddt@dataloy.com) *to request it added.*
{% endhint %}


---

# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.

## 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.dataloy.com/release-6.15/dataloy-distance-table-ddt/dataloy-distance-table-ddt.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.