Vercel
tcp/443
Exposing Swagger/OpenAPI documentation is primarily a risk if your API has underlying security flaws, as it gives attackers a precise roadmap to find them.
Those detail every endpoint, parameter, and data model, making it easier to discover and exploit vulnerabilities like broken access control or injection points.
While a perfectly secure API mitigates the danger, protecting your documentation is a critical layer of defense that forces attackers to work without a map.
Severity: info
Fingerprint: 5733ddf49ff49cd1f5e22fb4656dd6716bf6e1a71c4e61c41c4e61c41c4e61c4
Public Swagger UI/API detected at path: /api/swagger.json - sample paths: GET /api/posts POST /api/auth/login POST /api/upload/image
Open service 216.150.16.65:443 · cyclebook.seongjun.kr
2026-01-09 22:23
HTTP/1.1 404 Not Found
Accept-Ranges: bytes
Access-Control-Allow-Origin: *
Age: 2
Cache-Control: public, max-age=0, must-revalidate
Content-Disposition: inline; filename="404"
Content-Length: 6395
Content-Type: text/html; charset=utf-8
Date: Fri, 09 Jan 2026 22:23:02 GMT
Etag: "5c97c5cbc0d47b6f61d88a498ae8ac5e"
Last-Modified: Fri, 09 Jan 2026 22:23:00 GMT
Server: Vercel
Strict-Transport-Security: max-age=63072000
X-Matched-Path: /404
X-Vercel-Cache: HIT
X-Vercel-Id: sfo1::m6j7k-1767997382739-91884853c14f
Connection: close
Page title: 404: This page could not be found.CycleBook API
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Open service 216.150.16.65:443 · cyclebook.seongjun.kr
2026-01-02 15:51
HTTP/1.1 404 Not Found
Accept-Ranges: bytes
Access-Control-Allow-Origin: *
Age: 2207825
Cache-Control: public, max-age=0, must-revalidate
Content-Disposition: inline; filename="404"
Content-Length: 6395
Content-Type: text/html; charset=utf-8
Date: Fri, 02 Jan 2026 15:51:54 GMT
Etag: "5c97c5cbc0d47b6f61d88a498ae8ac5e"
Last-Modified: Mon, 08 Dec 2025 02:34:48 GMT
Server: Vercel
Strict-Transport-Security: max-age=63072000
X-Matched-Path: /404
X-Vercel-Cache: HIT
X-Vercel-Id: iad1::bpsgq-1767369114151-4ddb5380a4b8
Connection: close
Page title: 404: This page could not be found.CycleBook API
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Open service 216.150.16.65:443 · cyclebook.seongjun.kr
2025-12-22 17:53
HTTP/1.1 404 Not Found
Accept-Ranges: bytes
Access-Control-Allow-Origin: *
Age: 108604
Cache-Control: public, max-age=0, must-revalidate
Content-Disposition: inline; filename="404"
Content-Length: 6395
Content-Type: text/html; charset=utf-8
Date: Mon, 22 Dec 2025 17:53:10 GMT
Etag: "5c97c5cbc0d47b6f61d88a498ae8ac5e"
Last-Modified: Sun, 21 Dec 2025 11:43:05 GMT
Server: Vercel
Strict-Transport-Security: max-age=63072000
X-Matched-Path: /404
X-Vercel-Cache: HIT
X-Vercel-Id: sfo1::nqr2n-1766425989955-c90cf0ab9622
Connection: close
Page title: 404: This page could not be found.CycleBook API
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Open service 216.150.16.65:443 · cyclebook.seongjun.kr
2025-12-20 20:47
HTTP/1.1 404 Not Found
Accept-Ranges: bytes
Access-Control-Allow-Origin: *
Age: 61067
Cache-Control: public, max-age=0, must-revalidate
Content-Disposition: inline; filename="404"
Content-Length: 6395
Content-Type: text/html; charset=utf-8
Date: Sat, 20 Dec 2025 20:47:15 GMT
Etag: "5c97c5cbc0d47b6f61d88a498ae8ac5e"
Last-Modified: Sat, 20 Dec 2025 03:49:28 GMT
Server: Vercel
Strict-Transport-Security: max-age=63072000
X-Matched-Path: /404
X-Vercel-Cache: HIT
X-Vercel-Id: fra1::w5q9f-1766263635953-09f9becc40bb
Connection: close
Page title: 404: This page could not be found.CycleBook API
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