| domain | 5157.cn |
| summary | A 502 Bad Gateway error indicates that a server acting as a gateway or proxy received an invalid response from another server upstream. Essentially, one server is trying to get information from another, and that second server isn’t responding properly or is temporarily unavailable. This often points to problems on the server hosting the website, or issues with a service connecting to it (like a CDN or DNS). It doesn't necessarily mean your own computer is malfunctioning.
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| title | 502 Bad Gateway |
| description | 502 Bad Gateway |
| keywords | gateway |
| upstreams |
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| downstreams |
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| nslookup | A 127.0.0.1 |
| created | 2025-12-20 |
| updated | 2025-12-23 |
| summarized | 2026-01-21 |
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