import re

exp = re.compile("([\w_-]+(?:(?:\.[\w_-]+)+))([\w.,@?^=%&:/~+#-]*[\w@?^=%&/~+#-])?")


url = "makeuseof.comwhatnerd.comAPP:itunes.apple.com/us/app/makeuseof-tech-chats-news/id1016438893?mt=8APP:play.google.com/store/apps/details?id=com.makeuseof.makeuseof&hl=en, makeuseof.comwhatnerd.comblocksdecoded.comAPP:itunes.apple.com/us/app/makeuseof-tech-chats-news/id1016438893?mt=8APP:play.google.com/store/apps/details?id=com.makeuseof.makeuseof&hl=en, makeuseof.com, makeuseof.com, APP:itunes.apple.com/us/app/makeuseof-tech-chats-news/id1016438893?mt=8, APP:play.google.com/store/apps/details?id=com.makeuseof.makeuseof&hl=en"
embedded = re.findall(exp, url)

all_urls = []

for _url in embedded:
    tmp = []
    for element in _url:
        _foo = element.split(".com")
        foo = list(map(lambda x: x + ".com", _foo))

        foo[-1] = foo[-1].replace(".com", "")
        tmp.extend(foo)
    all_urls.extend(tmp)

all_urls

output = []
to_delete = []

for index, url in enumerate(all_urls):
    if url.startswith("/"):
        tmp = all_urls[index - 1] + url
        output.append(tmp)
        if all_urls[index - 1].strip() != "":
            to_delete.append(all_urls[index - 1])
    else:
        output.append(url)

output = list(filter(lambda x: x.strip() != "", output))

output