我想为https://www.trekearth.com启动scrapy shell 之后
scrapy shell https://www.trekearth.com
我收到了
2018-05-11 16:02:04 [scrapy.downloadermiddlewares.retry] DEBUG: Retrying
<GET https://www.trekearth.com> (failed 1 times): 524 Unknown Status
2018-05-11 16:02:05 [scrapy.downloadermiddlewares.retry] DEBUG: Retrying
<GET https://www.trekearth.com> (failed 2 times): 502 Bad Gateway
2018-05-11 16:03:45 [scrapy.downloadermiddlewares.retry] DEBUG: Gave up
retrying <GET https://www.trekearth.com> (failed 3 times): 524 Unknown Status
这是什么原因？我检查过的每个其他网站都没有返回可比较的结果。