User-agent: *
Disallow: /error/
Disallow: /browse/
Crawl-delay: 5
Sitemap: https://finddatalab.com/sitemap_index.xml
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko)
Chrome/79.0.3945.88 Safari/537.36
{
'User-Agent': 'python-requests/2.22.0',
'Accept-Encoding': 'gzip, deflate',
'Accept': '*/*', 'Connection': 'keep-alive'
}
…
<p><b>Web scraping</b>, <b>web harvesting</b>, or <b>web data extraction</b> is <a href="/extraction" title="Data scraping">data scraping</a>
used for <a href="/extraction" title="Data extraction">extracting data</a> from <a href="/" title="Website"> websites </a>.
<sup class= "reference" id="cite_ref-Boeing2016JPER_1-0"><a href="#cite_note-Boeing2016JPER-1">[1]</a></sup>
…
import requests
headers = {'User-Agent': 'This is my web scraping script; Contact me at [email protected]'}
page = requests.get('http://example.com', headers = headers)
headers = {'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64); John Doe/[email protected]'}
headers = {'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64)
AppleWebKit/537.36 (KHTML, like Gecko)
Chrome/79.0.3945.88 Safari/537.36'}
Crawl-delay: 5
import requests
import time
headers = {
'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64); John Doe/[email protected]',
'Referer': 'https://finddatalab.com/'
}
urls = {'https://finddatalab.com/brand-review-price-tracking-and-monitoring', 'https://finddatalab.com/web-scraping-legal'}
for n in urls:
page = requests.get(n, headers = headers)
# some code
time.sleep(5) #this is the time-out
import requests
import time
headers = {
'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64); John Doe/[email protected]',
'Referer': 'https://finddatalab.com'
}
urls = {'https://finddatalab.com/web-scraping-legal', 'https://finddatalab.com/brand-review-price-tracking-and-monitoring'}
for n in urls:
start = time.time()
page = requests.get(n, headers = headers)
delay = time.time() - start
# some code
time.sleep(2 * delay)
headers = {'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64)
AppleWebKit/537.36 (KHTML, like Gecko)
Chrome/79.0.3945.88 Safari/537.36'}
import time
import random
time.sleep(random.uniform(5, 15))
import requests
import time
import random
headers = {
# headers
}
urls = {
# urls
}
for n in urls:
start = time.time()
page = requests.get(n, headers = headers)
delay = time.time() - start
# some code
time.sleep(random.uniform(1, 2) * delay)