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Using Python scripts to analyse SEO and broken links on your site

Using Python scripts to analyse SEO and broken links on your site






Enhance Your Search Engine Optimization Using Python Techniques

Leveraging Python for Enhanced Search Engine Optimization (SEO)


Python Automation for SEO Tasks

Python excels at automating the monotonous tasks that consume much of your time, allowing you to dedicate more effort to other aspects of Search Engine Optimization (SEO). Surprisingly, few SEO professionals tap into Python’s potential for solving problems, despite its ability to significantly reduce time and labor. In particular, Python is adept at:

  • Data extraction
  • Preparation
  • Analysis and visualization
  • Machine learning
  • Deep learning

In this discussion, we will concentrate primarily on data extraction and analysis. We will specify the necessary modules for each script provided.


Key Takeaways:

  • Automate monotonous SEO tasks using Python to save time and improve efficiency.
  • Use the SEO Analyzer script for quick insights into page titles, meta descriptions, and other key SEO elements.
  • Enhance link analysis with the Pylinkvalidator script to identify and fix broken links and server errors promptly.
  • Set up a robust Python environment with essential libraries like BeautifulSoup and urllib for effective SEO automation.
  • Regularly update and customize Python scripts to keep pace with SEO demands and changes in search engine algorithms.

Python SEO Analyzer

An invaluable tool for website assessment is the ‘SEO Analyzer’. This comprehensive crawler inspects various elements such as:

  • Word count
  • Page Title
  • Meta Description
  • On-page Keywords

Warnings

  • Missing title
  • Missing description
  • Missing image alt-text

This tool is excellent for a swift evaluation of your site’s fundamental SEO challenges. With page titles, meta descriptions, and on-page keywords playing crucial roles in search rankings, this script offers a clear insight into potential issues that may affect your performance.

Using the SEO Analyzer

Once you have installed the required modules (BeautifulSoup 4 and urllib2) and updated your Python to version 3.4 or later, you are set to utilize the SEO analyzer. Additionally, you might find Json or similar formats beneficial for exporting the data gathered. Here are some commands you might use after setting up:

  • seoanalyze http://internetvergelijk.nl/
  • seoanalyze https://telefoonvergelijk.nl –sitemap https://telefoonvergelijk.nl/sitemap_index.xml

As demonstrated, for sites like internetvergelijk and telefoonvergelijk, you have the option to either crawl the website or its XML sitemap for SEO analysis. Alternatively, you can output the analysis in HTML format using the command:

seoanalyze http://internetvergelijk.nl/ --output-format-html

To export data when Json is installed, the following Python script can be used:

from seoanalyzer import analyse
output = analyse(site, sitemap)
print(output)

You might also choose to run the analysis through a script, exporting the results into an HTML file using the ‘–output-format html’ command. The seoanalyze script efficiently optimizes page titles, meta descriptions, images, and on-page keywords, providing a faster alternative to tools like Screaming Frog.

Python can also be used to optimize SEO through scripts like Pylinkvalidator, which crawls your website and analyzes URL status codes. This script is readily accessible and works best with Python 3.x, requiring only BeautifulSoup. However, for Python 2.x versions, BeautifulSoup is not necessary.

To enhance the crawling speed, consider installing these libraries:

  1. lxml – Improves the speed of HTML page crawling
  2. gevent – Enables the use of green threads in Pylinkvalidator
  3. cchardet – Accelerates the detection of document encoding

These enhancements are particularly beneficial for analyzing larger websites by improving the performance of the link status analyzer.

Pylinkvalidator offers a variety of options for use, such as:

  • Displaying progress during the crawl
  • Crawling additional pages from different hosts
  • Limiting the crawl to specific pages and their direct links
  • Excluding certain elements like images and stylesheets from the crawl
  • Increasing the number of threads or processes beyond the default setting
  • Modifying the user agent to simulate different browsers
  • Executing simultaneous crawls on multiple websites
  • Checking compliance with robots.txt
  • Analyzing specific tags such as body and paragraph tags

Progress Indicators

Using the progress indicators through the -P or --progress options is advisable, as they provide visual feedback on the status of your crawl, preventing any uncertainty about its completion. The commands for increasing the number of threads (--workers='number of workers') and processes (--mode=process --workers='number of workers') are particularly helpful for managing larger tasks.

Examples of Pylinkvalidator Usage

  • pylinkvalidate.py -p http://www.example.com/ — Crawls the website while displaying progress.
  • pylinkvalidate.py -p workers=4 http://www.example.com/ — Enhances crawling speed by using multiple threads and displaying progress.
  • pylinkvalidate.py -p --parser=lxml http://www.example.com/ — Utilizes the lxml library to accelerate the crawl, showing progress.
  • pylinkvalidate.py -P --types=a http://www.example.com/ — Focuses the crawl on link elements only, excluding images, scripts, and stylesheets, which is especially useful for large sites.

After running the script, you will receive a list of URLs with 4xx and 5xx status codes, along with URLs that link to each page, simplifying the process of correcting broken links. This crawl omits 3xx status codes unless specified.

For comprehensive URL linkage and status reporting, use the command:

pylinkvalidate.py --report-type=all http://www.example.com/

This command provides detailed insights into the status codes of pages and the pages linking to them.

SEO Tool Utilization

An invaluable SEO tool is the one designed to scan your website for broken links and server errors. These issues can negatively impact your SEO efforts, making it crucial to regularly scan and rectify them promptly.

Conclusion

While these scripts offer substantial assistance, the potential for Python in SEO extends much further. Encourage yourself to develop scripts that streamline your SEO activities. There’s an abundance of Python scripts available that can automate tasks like checking hreflang tags, canonical links, and robots.txt files. In our modern era, why continue manual operations when automation is possible?

Setting Up Your Python Environment for SEO

Before diving into the use of Python for SEO tasks, it’s crucial to set up a robust Python environment tailored for SEO analytics and automation. This setup involves selecting the right Python version, installing essential libraries, and configuring your system for optimal performance.

Essential Python Libraries for SEO Tasks

To effectively utilize Python for SEO, several key libraries need to be installed. BeautifulSoup is indispensable for HTML parsing, while urllib or requests are essential for handling HTTP requests. Additionally, consider installing Pandas for data manipulation, NumPy for numerical operations, and Scikit-learn for machine learning tasks that can predict SEO outcomes based on historical data.

Installing and Configuring BeautifulSoup and urllib2

Installing BeautifulSoup and urllib2 (or requests for newer Python versions) is straightforward. You can use pip, Python’s package installer. Open your command line or terminal and enter the following commands:

pip install beautifulsoup4
pip install urllib3

After installation, it’s important to test the setup to ensure everything works as expected. Try running a simple script that fetches and parses an HTML page. Here’s a basic example:

from bs4 import BeautifulSoup
import urllib3

http = urllib3.PoolManager()
response = http.request('GET', 'http://example.com')
soup = BeautifulSoup(response.data, 'html.parser')

print(soup.title.text)

This script retrieves the HTML content of ‘example.com’, parses it, and prints the title of the page, demonstrating a functional setup.


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