import requests

url1 = "https://www.instagram.com/p/DVOazPSjJQm/embed"
url2 = "https://www.instagram.com/p/DVOazPSjJQm/embed/"

res1 = requests.get(url1, headers={'User-Agent': 'Mozilla'})
res2 = requests.get(url2, headers={'User-Agent': 'Mozilla'})

print("url1:", len(res1.text), "likes in text:", "likeCountClick" in res1.text)
print("url2:", len(res2.text), "likes in text:", "likeCountClick" in res2.text)