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This issue branches off of #1707 (comment). In such an issue, we were comparing the old and the new webconnectivity test helpers. The http://www.irna.ir URL stood out in this comparison, because the old test helper said:
So, the basic take away from this measurement seems to be: the new TH returns 404, the old one 200.
However, digging further into this URL, it appears that the webconnectivity's conclusion is wrong. To illustrate why that happens, let me use the websteps test helper to measure the same URL.
So, we see that we have two endpoints (178.216.249.78:80 and 217.25.48.64:80) and both redirect to https://www.irna.ir/en/. Now, let's do another step and check what we can get when we connect to such a website:
This second step is enough to clarify what is happening. The 217.25.48.64:443 endpoint returns 302 and redirects to https://en.irna.ir/. The 178.216.249.78:443 endpoint returns 404.
Bottom line: testing each endpoint helps to spot these weird cases and helps to figure out misconfiguration. In turn, by doing that, we increase the data quality because we're less likely to say "anomaly". If the probe and the TH both conclude that 178.216.249.78:443 returns 404, there is, in fact, no anomaly.
The text was updated successfully, but these errors were encountered:
This issue branches off of #1707 (comment). In such an issue, we were comparing the old and the new webconnectivity test helpers. The http://www.irna.ir URL stood out in this comparison, because the old test helper said:
while the new test helper said:
So, the basic take away from this measurement seems to be: the new TH returns
404
, the old one200
.However, digging further into this URL, it appears that the webconnectivity's conclusion is wrong. To illustrate why that happens, let me use the websteps test helper to measure the same URL.
So, we see that we have two endpoints (
178.216.249.78:80
and217.25.48.64:80
) and both redirect to https://www.irna.ir/en/. Now, let's do another step and check what we can get when we connect to such a website:This second step is enough to clarify what is happening. The
217.25.48.64:443
endpoint returns302
and redirects to https://en.irna.ir/. The178.216.249.78:443
endpoint returns404
.Bottom line: testing each endpoint helps to spot these weird cases and helps to figure out misconfiguration. In turn, by doing that, we increase the data quality because we're less likely to say "anomaly". If the probe and the TH both conclude that
178.216.249.78:443
returns404
, there is, in fact, no anomaly.The text was updated successfully, but these errors were encountered: