Output

CSS Selectors

You can use CSS Selectors for data extraction. In the table below, you will find a list of examples of how to use it.

You only need to add &css_extractor={"links":"a @href"} to the request to use this feature.

Here are some examples

extraction rules	sample html	value	json output
{“divs”:“div”}	<div>text0</div>	text	{“divs”: “text0”}
{“divs”:“div”}	<div>text1</div><div>text2</div>	text	{“divs”: [“text1”, “text2”]}
{“links”:“a @href”}	<a href=“#register”>Register</a>	href attribute	{“links”: “#register”}
{“hidden”:“input[type=hidden] @value”}	<input type=“hidden” name=“_token” value=“f23g23g.b9u1bg91g.zv97” />	value attribute	{“hidden”: “f23g23g.b9u1bg91g.zv97”}
{“class”:“button.submit @data-v”}	<button class=“submit” data-v=“register-user”>click</button>	data-v attribute with submit class	{“class”: “register-user”}
{“emails”:“a[href^=‘mailto:’] @href”}	<a href=“mailto:test1@‍domain.com”>email 1</a><a href=“mailto:test2@‍domain.com”>email 2</a>	href attribute for links starting with mailto:	{“emails”: [“test1@‍domain.com”, “test2@‍domain.com”]}
{“id”:“#my-id”}	<div id=“my-id”>Content here</div>	Content from element with id	{“id”: “Content here”}
{“links”:“a[id=‘register-link’] @href”}	<a id=“register-link” href=“#signup”>Sign up</a>	href attribute of element with specific id	{“links”: “#signup”}
{“xpath”:“//h1”}	<h1>Welcome</h1>	Extract text using XPath	{“xpath”: “Welcome”}
{“xpath”:“//img @src”}	<img src=“image.png” alt=“image description” />	Extract src attribute using XPath	{“xpath”: “image.png”}

If you are interested in learning more, you can find a complete reference of CSS Selectors here.

Auto Parsing

ZenRows® API will return the HTML of the URL by default. Enabling Autoparse uses our extraction algorithms to parse data in JSON format automatically.

Understand more about the autoparse feature on: What Is Autoparse?

Add &autoparse=true to the request for this feature.

Output Filters

The outputs parameter lets you specify which data types to extract from the scraped HTML. This allows you to efficiently retrieve only the data types you’re interested in, reducing processing time and focusing on the most relevant information.

The parameter accepts a comma-separated list of filter names and returns the results in a structured JSON format.

Use outputs=* to retrieve all available data types.

Here’s an example of how to use the outputs parameter:

Supported Filters and Examples:

Emails

Extracts email addresses using CSS selectors and regular expressions. This includes standard email formats like example@example.com and obfuscated versions like example[at]example.com.

Example: outputs=emails

output
{
  "emails": [
    "example@example.com",
    "info@website.com",
    "contact[at]domain.com",
    "support at support dot com"
  ]
}

Phone Numbers

Extracts phone numbers using CSS selectors and regular expressions, focusing on links with tel: protocol.

Example: outputs=phone_numbers

output
{
  "phone_numbers": [
    "+1-800-555-5555",
    "(123) 456-7890",
    "+44 20 7946 0958"
  ]
}

Headings

Extracts heading text from HTML elements h1 through h6.

Example: outputs=headings

output
{
  "headings": [
    "Welcome to Our Website",
    "Our Services",
    "Contact Us",
    "FAQ"
  ]
}

Images

Extracts image sources from img tags. Only the src attribute is returned.

Example: outputs=images

output
{
  "images": [
    "https://example.com/image1.jpg",
    "https://example.com/image2.png"
  ]
}

Audios

Extracts audio sources from source elements inside audio tags. Only the src attribute is returned.

Example: outputs=audios

output
{
  "audios": [
    "https://example.com/audio1.mp3",
    "https://example.com/audio2.wav"
  ]
}

Videos

Extracts video sources from source elements inside video tags. Only the src attribute is returned.

Example: outputs=videos

output
{
  "videos": [
    "https://example.com/video1.mp4",
    "https://example.com/video2.webm"
  ]
}

Links

Extracts URLs from a tags. Only the href attribute is returned.

Example: outputs=links

output
{
  "links": [
    "https://example.com/page1",
    "https://example.com/page2"
  ]
}

Menus

Extracts menu items from li elements inside menu tags.

Example: outputs=menus

output
{
  "menus": [
    "Home",
    "About Us",
    "Services",
    "Contact"
  ]
}

Hashtags

Extracts hashtags using regular expressions, matching typical hashtag formats like #example.

Example: outputs=hashtags

output
{
  "hashtags": [
    "#vacation",
    "#summer2024",
    "#travel"
  ]
}

Metadata

Extracts meta-information from meta tags inside the head section. Returns name and content attributes in the format name: content.

Example: outputs=metadata

output
{
  "metadata": [
    "description: This is an example webpage.",
    "keywords: example, demo, website",
    "author: John Doe"
  ]
}

Tables

Extracts data from table elements and returns the table data in JSON format, including dimensions, headings, and content.

Example: outputs=tables

output
{
  "dimensions": {
    "rows": 4,
    "columns": 4,
    "heading": true
  },
  "heading": ["A", "B", "C", "D"],
  "content": [
    {"A": "1", "B": "1", "C": "1", "D": "1"},
    {"A": "2", "B": "2", "C": "2", "D": "2"},
    {"A": "3", "B": "3", "C": "3", "D": "3"},
    {"A": "4", "B": "4", "C": "4", "D": "4"}
  ]
}

Favicon

Extracts the favicon URL from the link element in the head section of the HTML.

Example: outputs=favicon

output
{
  "favicon": "https://example.com/favicon.ico"
}

Markdown Response

By adding response_type=markdown to the request parameters, the ZenRows API will return the content in a Markdown format, making it easier to read and work with, especially if you are more comfortable with Markdown than HTML.

It can be beneficial if you prefer working with Markdown for its simplicity and readability.

You can’t use the Markdown Response in conjunction with other outputs

Add response_type=markdown to the request:

Let’s say the HTML content of the ScrapingCourse product page includes a product title, a description, and a list of features. In HTML, it might look something like this:

<h1>Product Title</h1>
<p>This is a great product that does many things.</p>
<ul>
    <li>Feature 1</li>
    <li>Feature 2</li>
    <li>Feature 3</li>
</ul>

When you enable the Markdown response feature, ZenRows Scraper API will convert this HTML content into Markdown like this:

# Product Title

This is a great product that does many things.

- Feature 1
- Feature 2
- Feature 3

Plain Text Response

The plaintext feature is an output option that returns the scraped content as plain text instead of HTML or Markdown.

This feature can be helpful when you want a clean, unformatted version of the content without any HTML tags or Markdown formatting. It simplifies the content extraction process and makes processing or analyzing the text easier.

You can’t use the Plain Text Response in conjunction with other outputs

Add response_type=plaintext to the request:

Let’s say the HTML content of the ScrapingCourse product page includes a product title, a description, and a list of features. In HTML, it might look something like this:

<h1>Product Title</h1>
<p>This is a great product that does many things.</p>
<ul>
    <li>Feature 1</li>
    <li>Feature 2</li>
    <li>Feature 3</li>
</ul>

When you enable the plaintext_response feature, ZenRows Scraper API will convert this HTML content into plain text like this:

Product Title

This is a great product that does many things.

Feature 1
Feature 2
Feature 3

PDF Response

In today’s data-driven world, the ability to generate and save web scraping results in various formats can significantly enhance data utilization and sharing.

To use the PDF response feature, you must include the js_render=true parameter alongside with the response_type with the value pdf in your request. This instructs the API to generate a PDF file from the scraped content.

Check our documentation about the JS Rendering

You can’t use the PDF Response in conjunction with other outputs.

The resulting PDF file will contain the same information as the web page you scraped.

After getting the response in .pdf you can save it using the following example in Python:

scraper.py
# Save the response as a binary file
with open('output.pdf', 'wb') as file:
    file.write(response.content)

print("Response saved into output.pdf")

Page Screenshot

Capture an above-the-fold screenshot of the target page by adding screenshot=true to the request. By default, the image will be in PNG format.

Additional Options

screenshot_fullpage=true takes a full-page screenshot.
screenshot_selector=<CSS Selector> takes a screenshot of the element given in the CSS Selector.

Due to the nature of the params, screenshot_selector and screenshot_fullpage are mutually exclusive. Additionally, JavaScript rendering (js_render=true) is required.

These screenshot features can be combined with other options like wait, wait_for, or js_instructions to ensure that the page or elements are fully loaded before capturing the image. When using json_response, the result will include a JSON object with the screenshot data encoded in base64, allowing for easy integration into your workflows.

Image Format and Quality

In addition to the basic screenshot functionality, ZenRows offers customization options to optimize the output. These features are particularly useful for reducing file size, especially when taking full-page screenshots where the image might exceed 10MB, causing errors.

screenshot_format: Choose between png and jpeg formats, with PNG being the default. PNG is great for high-quality images and transparency, while JPEG offers efficient compression.
screenshot_quality: Applicable when using JPEG, this parameter allows you to set the quality from 1 to 100. Useful for balancing image clarity and file size, especially in scenarios where storage or bandwidth is limited.

Download Files and Pictures

ZenRows® will download images, PDFs or any type of file. Instead of reading the response’s content as text, you can store it directly in a file.

There is a size limit of 10MB and we don’t recommend using the ZenRows Scraper API to download big files.

Quickstart

Get Started

Features

Help

CSS Selectors

Auto Parsing

Output Filters

Emails

Phone Numbers

Headings

Images

Audios

Videos

Links

Menus

Hashtags

Metadata

Tables

Favicon

Markdown Response

Plain Text Response

PDF Response

Page Screenshot

Additional Options

Image Format and Quality

Download Files and Pictures

Frequently Asked Questions (FAQ)

Quickstart

Get Started

Features

Help

​CSS Selectors

​Auto Parsing

​Output Filters

​Emails

​Phone Numbers

​Headings

​Images

​Audios

​Videos

​Links

​Menus

​Hashtags

​Metadata

​Tables

​Favicon

​Markdown Response

​Plain Text Response

​PDF Response

​Page Screenshot

​Additional Options

​Image Format and Quality

​Download Files and Pictures

​Frequently Asked Questions (FAQ)

CSS Selectors

Auto Parsing

Output Filters

Emails

Phone Numbers

Headings

Images

Audios

Videos

Links

Menus

Hashtags

Metadata

Tables

Favicon

Markdown Response

Plain Text Response

PDF Response

Page Screenshot

Additional Options

Image Format and Quality

Download Files and Pictures

Frequently Asked Questions (FAQ)