How to verify if a page is SEO compliant?


I want to create a web test that verify if a page is SEO compliant. I have think to create this web test:
1. Capturing the HTML code of the interesting page;
2. Making a POST call, with the HTML code captured, to beck-end of the SEO Validator page;

Now, I have created these script:

1. Script to capture the HTML code of the interesting page:

import static com.kms.katalon.core.checkpoint.CheckpointFactory.findCheckpointimport static com.kms.katalon.core.testcase.TestCaseFactory.findTestCase
import static com.kms.katalon.core.testdata.TestDataFactory.findTestData
import static com.kms.katalon.core.testobject.ObjectRepository.findTestObject
import com.kms.katalon.core.checkpoint.Checkpoint as Checkpoint
import com.kms.katalon.core.checkpoint.CheckpointFactory as CheckpointFactory
import as MobileBuiltInKeywords
import as Mobile
import com.kms.katalon.core.model.FailureHandling as FailureHandling
import com.kms.katalon.core.testcase.TestCase as TestCase
import com.kms.katalon.core.testcase.TestCaseFactory as TestCaseFactory
import com.kms.katalon.core.testdata.TestData as TestData
import com.kms.katalon.core.testdata.TestDataFactory as TestDataFactory
import com.kms.katalon.core.testobject.ObjectRepository as ObjectRepository
import com.kms.katalon.core.testobject.TestObject as TestObject
import com.kms.katalon.core.webservice.keyword.WSBuiltInKeywords as WSBuiltInKeywords
import com.kms.katalon.core.webservice.keyword.WSBuiltInKeywords as WS
import com.kms.katalon.core.webui.keyword.WebUiBuiltInKeywords as WebUiBuiltInKeywords
import com.kms.katalon.core.webui.keyword.WebUiBuiltInKeywords as WebUI
import internal.GlobalVariable as GlobalVariable
import org.openqa.selenium.WebDriver as WebDriver
import com.kms.katalon.core.webui.driver.DriverFactory as DriverFactory
WebDriver driver = DriverFactory.getWebDriver()
'Get source code of current page'

2. Script to do a POST call:

My question is: “Who can I combine the two scripts to verify if the interesting page is SEO compliant?” I want to verify the “totalNumErrors” and the “totalNumWarning” of the my interesting page.

Thanks for the help!