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How To Scrape The Javascript Based Site Https://marketchameleon.com/calendar/earnings Using Selenium And Python?

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I am trying to get earning dates from https://marketchameleon.com/Calendar/Earnings The site has a javascript loader that loads the earnings table, but when I am using selenium it

Solution 1:

I took your code added a few tweaks and ran a test to extract the earning dates from https://marketchameleon.com/Calendar/Earnings as follows:

  • Code Block:

    from selenium import webdriver
from selenium.webdriver.common.by import By
from selenium.webdriver.support.ui import WebDriverWait
from selenium.webdriver.support import expected_conditions as EC

options = webdriver.ChromeOptions() 
options.add_argument("start-maximized")
options.add_experimental_option("excludeSwitches", ["enable-automation"])
options.add_experimental_option('useAutomationExtension', False)
driver = webdriver.Chrome(options=options, executable_path=r'C:\Utility\BrowserDrivers\chromedriver.exe')
driver.get('https://marketchameleon.com/Calendar/Earnings')
print(WebDriverWait(driver, 5).until(EC.visibility_of_element_located((By.CSS_SELECTOR, "table.dateselect_menu_h_table tr > th > span"))).text)
print(WebDriverWait(driver, 5).until(EC.visibility_of_element_located((By.XPATH, "//table[@class='dateselect_menu_h_table']//tr/th/span"))).get_attribute("innerHTML"))

Observation

Similar to your observation, I have hit the same roadblock that using Selenium the earnings table doesn't loads:

marketchameleon

Deep Dive

While inspecting the DOM Tree of the webpage I found that some of the <script> and other tags refers to the keyword akam. As an example:

  • !function(){if(BOOMR=a.BOOMR||{},BOOMR.plugins=BOOMR.plugins||{},!BOOMR.plugins.AK){var e=""=="true"?1:0,t="",n="gertvyrrfrzvsxxfd3ta-f-81b1f5d51-clientnsv4-s.akamaihd.net"
  • <script type="text/javascript" src="https://marketchameleon.com/akam/11/4e7414cb" defer=""></script>
  • <noscript><img src="https://marketchameleon.com/akam/11/pixel_4e7414cb?a=dD03OTIxZTlmM2QwMWVhMDkxODhjNzQwN2E3NmFkNzRiMDQ5ODBkOGU0JmpzPW9mZg==" style="visibility: hidden; position: absolute; left: -999px; top: -999px;" /></noscript>
  • <link id="dnsprefetchlink" href="//gertvyrrfrzvsxxfd3ta-f-81b1f5d51-clientnsv4-s.akamaihd.net">

Which is a clear indication that the website is protected by Bot Manager an advanced bot detection service provided by Akamai and the response gets blocked.

Bot Manager

As per the article Bot Manager - Foundations:

akamai_detection

Conclusion

So it can be concluded that the request for the data is detected as being performed by Selenium driven WebDriver instance and the response is blocked.

References

A couple of documentations:

tl; dr

A couple of relevant discussions:

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