Google servers
Here is a list of Google server names used for various company services that are returned in HTTP headers. Not all servers are assigned obvious names, and some of them may even show interesting data (for example, ctcserver is used for the not yet launched Google Call service referenced by robots.txt). Google Web Server is a modified version of the normal Apache server running on Linux.
via Google Operating System
| Server name | Services, scope |
| GWS (Google Web Server) | Web Search, Image Search and Other Services |
| GFE / 1.3 (Google Front-End) | Gmail, Calendar, Picasa Albums, Docs, Blogger, orkut, Reader and many other services |
| GWS-GRFE / 0.50 | Groups |
| bsfe (Blog Search Front-End) | Blog Search |
| OFE / 0.1 (Ocean Front-End) | Book Search, Patent Search |
| SMS search frontend 1.0 | Google SMS |
| Search-History HTTP Server | Search history |
| Auto-Completion Server | Google Suggest, auto add-on in Firefox / Google Toolbar |
| Trustrank frontend | Secure web surfing |
| GCS / 1.0 | Secure web surfing |
| SFE / 0.8 | Finance |
| FTS © 1997-2007 Interactive Data Managed Solutions AG | Finance tables |
| asfe | Base |
| mediaserver | Base (images) |
| cffe | Product Search (Froogle) |
| btfe | Sketches: Image Search, Google Video, Youtube |
| Video Stats Server | Google video |
| cachefe: image (Cache Front-End) | Picasa photos |
| staticfe | Interface Pictures (Picasa Web) |
| ctcserver | Google Call ( www.google.com/call ) |
| GoogleChartServer / 1.0 | used for dynamically changing tables (like google video statistics) |
| NFE / 1.0 (News Front-End) | news |
| mfe (Maps Front-End) | Cards |
| Keyhole Server 2.4 | Maps, Earth (images) |
| PSFE / 4.0 | Alert |
| igfe (iGoogle Front-End) | iGoogle |
| COMINST / 1.0 | Intralation Packs (Pack, Picasa) |
| TWS / 0.9 (Translation Web Server) | Translator |
| mws (Music Web Server) | Music search |
| R2FE / 1.0 (Reviews Front-End) | Reviews (Music, Movies) |
| zfe | Reviews |
| pfe | Co-op |
| codesite / 5477219 | Code |
| ga-reporting-fe | Analytics reports |
| ucfe | Analytics |
| lpfe | Analytics (www.google-analytics.com/siteopt.js) |
| Toolbar Gaia User Service Server | Google Toolbar Identification |
| cafe (Ad Conversion Front-End) | Transitions |
| Adclickserver | Google Advertising Test Server |
| Google trends | Google trends |
| TFE / 0.0 (Transliteration Front-End) | Hindi translation |
| Apache | most lab services |
via Google Operating System
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Source: https://habr.com/ru/post/14224/
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