| Server | Apache-Coyote/1.1 |
| Cache-Control | no-cache, no-store |
| Content-Type | text/html;charset=UTF-8 |
| Expires | Thu, 01 Jan 1970 00:00:00 GMT |
| Pragma | no-cache |
| X-Cf-Requestid | 9db158f3-daf8-4b7c-45ac-7422a2ec6815 |
| Content-Encoding | gzip |
| X-country_geoip | CA |
| X-CURRENT_COUNTRY_AFTER_4 | es |
| X-site | gp |
| X-country_after_rules | es |
| X-hfp | | no ttl || set-cookie || no cache | |
| X-grace | none |
| Transfer-Encoding | chunked |
| Accept-Ranges | bytes |
| Via | 1.1 www.springer.com, 1.1 varnish-v4, 1.1 varnish |
| Age | 0 |
| Connection | keep-alive |
| X-Served-By | cache-iad2127-IAD |
| X-Cache | MISS, MISS |
| X-Cache-Hits | 0 |
| Vary | Accept-Encoding,User-Agent |