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CLI + API for Google PageSpeed Insights

Project description


CLI 🖥 + API for Google PageSpeed Insights

PythonPSI PyPI - Downloads


PageSpeed Insights (PSI) reports on the performance of a page on both mobile and desktop devices, and provides suggestions on how that page may be improved.

PSI provides both lab and field data about a page. Lab data is useful for debugging performance issues, as it is collected in a controlled environment. However, it may not capture real-world bottlenecks. Field data is useful for capturing true, real-world user experience - but has a more limited set of metrics.

PyPSI uses PageSpeed Insights API v5


pip install PythonPSI


psi <SITE_URL> <OPTION1> <OPTION2> ...


$ psi --category seo --stratergy desktop --locale en

    "captchaResult": "CAPTCHA_NOT_NEEDED",
    "kind": "pagespeedonline#result",
    "id": "",
    "loadingExperience": {
    "originLoadingExperience": {
    "lighthouseResult": {
    "analysisUTCTimestamp": {


$ psi --help

    Usage: psi [OPTIONS] URL

    --api_key TEXT        Required to use the API in an automated way and make
                            multiple requests per second

    --category TEXT       A Lighthouse category to run; if none are given, only
                            Performance category will be run

    --metrics TEXT        Returns metrics of a particular field in response

    --locale TEXT         The locale used to localize formatted results
    --stratergy TEXT      The analysis strategy (desktop or mobile) to use, and
                            desktop is the default

    --threshold TEXT      Threshold score to pass the PageSpeed test. Useful for
                            setting a performance budget.

    --links TEXT          If passed adds links with more info about
                            opportunities. Useful for checking documentation about

    --utm_campaign TEXT   Campaign name for analytics.
    --utm_source TEXT     Campaign source for analytics.
    --captcha_token TEXT  The captcha token passed when filling out a captcha.
    --help                Show this message and exit.

API Usage

from PythonPSI.api import PSI

PSI('', category='seo', locale='en', stratergy='desktop')
# Returns JSON output
  • PSI - Required arguments: 1, Optional arguments: 9

    • URL:
      • Required
      • Default: None
    • api_key:
      • Optional
      • Default: None
    • category:
      • Optional
      • Default: performance
      • Options: accessibility, best_practices, performance, pwa, seo
    • metrics:
      • Optional
      • Default: None
      • Options: kind, captchaResult, id, loadingExperience, originLoadingExperience, analysisUTCTimestamp, lighthouseResult, version
    • locale:
      • Optional
      • Default: en
    • stratergy:
      • Optional
      • Default: desktop
      • Options: desktop, mobile
    • threshold:
      • Optional
      • Default: None
      • Options: INT 0-100
    • links:
      • Optional
      • Default: false
      • Options: true, false
    • utm_campaign:
      • optional
      • Default: None
    • utm_source:
      • Optional
      • Default: None
    • captcha_token:
      • Optional
      • Default: None

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