Threat Level: green Handler on Duty: Johannes Ullrich

SANS ISC: HTTP Header Usage Statistics HTTP Header Usage Statistics


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This is a continuation of work started by Brough Davis as part of his software security project for his Masters in Information Security Engineering. The main goal of this project is to find how many sites use security relevant headers, like for example the X-XSS-Protection or X-Frame-Options headers.

Below you will find a table/histogram showing how many times we found each header (security relevant or not). We access the index page of each site using a "head" request. The list of sites is derived from Alexa's Top 1 Million sites. We try to poll as many sites as possible each day.

As we collect more data, we will plot changes over time.



All Headers Active In The Past Month
Header Popularity
Set-Cookie
Content-Type
Date
Connection
Server
Cache-Control
Vary
Expires
X-Frame-Options
Content-Length
Strict-Transport-Security
X-Content-Type-Options
Accept-Ranges
Last-Modified
Link
X-Powered-By
CF-Cache-Status
Pragma
ETag
CF-RAY
Expect-CT
Via
Age
X-Cache
X-XSS-Protection
Content-Security-Policy
Access-Control-Allow-Origin
Content-Language
X-Xss-Protection
P3P
Referrer-Policy
X-Cache-Hits
X-Amz-Cf-Pop
X-Amz-Cf-Id
X-UA-Compatible
X-Served-By
Alt-Svc
X-Request-Id
X-Varnish
X-Timer
Access-Control-Allow-Headers
Access-Control-Allow-Methods
X-Download-Options
X-AspNet-Version
Access-Control-Allow-Credentials
X-Runtime
X-Drupal-Cache
X-Check
Content-Security-Policy-Report-Only
X-Adblock-Key
X-Generator
X-Permitted-Cross-Domain-Policies
X-Cache-Status
CF-Ray
X-Cacheable
X-DNS-Prefetch-Control
X-Kinja-Server-Push
Timing-Allow-Origin
X-Template
X-Language
X-FRAME-OPTIONS
X-Ua-Compatible
X-AspNetMvc-Version
X-Iinfo
Status
X-Buckets
X-Content-Security-Policy
X-CDN
Content-Encoding
Upgrade
Access-Control-Expose-Headers
Access-Control-Max-Age
X-Envoy-Upstream-Service-Time
Keep-Alive
X-Via
X-Drupal-Dynamic-Cache
X-Ws-Request-Id
X-Server
X-Turbo-Charged-By
X-AH-Environment
X-Backend
P3p
X-Age
X-Cache-Group
X-Robots-Tag
Xkey
Feature-Policy
X-Proxy-Cache
X-Request-ID
Request-Context
X-Amz-Request-Id
X-Amz-Id-2
X-Hacker
X-Page-Speed
EagleId
X-UA-Device
X-Server-Powered-By
X-Nginx-Cache-Status
X-Pingback
Grace
X-Varnish-Cache
Server-Timing
X-LiteSpeed-Cache
X-Swift-CacheTime
X-Swift-SaveTime
Report-To
Ali-Swift-Global-Savetime
X-Amz-Version-Id
X-WebKit-CSP
Cf-Railgun
X-Server-Id
X-Rq
X-Pantheon-Styx-Hostname
X-Styx-Req-Id
X-Origin-Cache
X-OneAgent-JS-Injection
X-Dns-Prefetch-Control
EagleEye-TraceId
X-Host
X-Device
Surrogate-Control
X-Response-Time
X-Vhost
X-Backend-Server
X-Cache-Lookup
X-Ac
X-Node
X-Origin-Upstream-Status
X-Readtime
X-Dispatcher
X-HW
Fusion-Content-Id
Fusion-Content-Source
Fusion-Source
Fusion-Component-Id
Fusion-Template-Id
Request-Id
X-DataDome
X-Pass-Why
X-Mod-Pagespeed
Content-Location
X-Application-Context
NEL
X-Akam-SW-Version
X-ORACLE-DMS-ECID
X-ORACLE-DMS-RID
Fusion-Deployment-Id
X-Country
X-Ruxit-JS-Agent
Allow
X-EdgeConnect-MidMile-RTT
X-EdgeConnect-Origin-MEX-Latency
Rating
X-Country-Code
Edge-Control
X-Clacks-Overhead
X-Cloud-Trace-Context
X-Cnection
X-Url
X-Px
X-Rack-Cache
X-FTR-Request-ID
Accept-CH
X-Goog-Hash
RTSS
MS-Author-Via
X-Vname
X-PC
X-TtlSet
X-Powered-By-Plesk
Verso
Accept-CH-Lifetime
X-B3-TraceId
Public-Key-Pins
Service-Worker-Allowed
X-GitHub-Request-Id
X-DynaTrace
X-Ttl
X-Cdn-Fetch
X-Exp-Variant
X-Use-Magma
X-Kinja-Server
X-Kinja
X-Kinja-Build
X-Kinja-Revision
X-GoogleNews-Bot
X-Exp-Id
X-MS-InvokeApp
X-Amz-Server-Side-Encryption
X-Varnish-TTL
Display
Response
X-Middleton-Display
X-Middleton-Response
Arr-Disable-Session-Affinity
X-Sol
Pagespeed
X-Forwarded-Proto
X-Cache-TTL
X-D2id
X-Amz-Rid
X-CST
TCN
X-Cached
X-Abt-Application-Version
X-Vcap-Request-Id
X-NF-Request-ID
Pinterest-Generated-By
X-VARITI-CCR
X-Content-Type
X-Navigation-Version
X-Fastly-Request-ID
Cache-Tag
X-Server-Name
X-Instart-Request-ID
X-ESI
Accept-Ch
X-Accel-Expires
X-TEC-API-VERSION
X-TEC-API-ORIGIN
X-TEC-API-ROOT
X-Version
AR-Request-ID
AR-PoweredBy
AR-ATIME
X-MSEdge-Ref
Access-Control-Request-Method
X-Grace
Nginx-Cache
Ar-Sid
AR-CACHE
Charset
X-Upstream
X-Debug
S
X-Powered-CMS
SPIisLatency
SPRequestDuration
X-FastCGI-Cache
Accept-Ch-Lifetime
X-SRCache-Fetch-Status
X-SRCache-Store-Status
SPRequestGuid
X-SharePointHealthScore
X-DynaTrace-JS-Agent
X-Client-IP
Realpath
Content-MD5
X-Ezoic-Cdn
X-Trace
Mrf-Cache-Status
MRF-Tech
X-B3-TraceId-Primal
X-Mrf-Section-Lastmod
X-Mrf-Item-Lastmod
X-Element-Page-Cache
X-Dw-Request-Base-Id
X-Pinterest-Rid
Pinterest-Version
X-Hp-Webp
X-Jurisdiction
Nel
X-Id
X-Recruiting
X-Shield-Request-Id
X-Amz-Meta-S3cmd-Attrs
X-Node-Name
Fastcgi-Cache
X-T
X-Content-Digest
X-Kinsta-Cache
X-XRDS-Location
X-Logged-In
X-NWS-LOG-UUID
X-ASPNET-VERSION
X-Mobile-URL
X-Frontend
X-FTR-Cache-Status
X-Country-Code-Real
X-Oneagent-Js-Injection
X-FTR-DC
X-FTR-Backend
X-FTR-Realm
X-FTR-Backend-Server
X-FTR-Balancer
Edge-Cache-Tag
Server-Node
X-Cache-Age
X-Request-Received
X-Request-Processing-Time
TP-L2-Cache
X-Cache-Hit
TP-Cache
X-FTR-Expires
X-Goog-Stored-Content-Length
X-Goog-Generation
X-Goog-Metageneration
X-Goog-Storage-Class
X-GUploader-UploadID
X-Goog-Stored-Content-Encoding
Front-End-Https
ServerID
Server-Name
X-Amzn-Trace-Id
X-Forwarded-For
X-Cache-Key
X-Hostname
Fastly-Restarts
DynaTrace
PB-PID
Arc-Version
PB-RID
X-Zen-Fury
Powered
X-Server-ID
X-Microsite
X-DIS-Request-ID
X-Request-Handler-Origin-Region
X-ATS-Timestamp
Backend-Timing
X-Content-Security-Policy-Report-Only
X-Revision
X-User-Agent
X-Hits
X-Akamai-Edgescape
X-Page-Id
X-F-Cache
X-Mobile-Rewrite
X-LB-Cache
X-HS-Cache-Config
X-HS-Combine-CSS
X-HS-Content-Id
Accept-Charset
X-Jobs
X-HS-Hub-Id
X-TTL
Filters
X-ORACLE-APMCS-REQUEST-ID
X-ORACLE-APMCS-TAG
X-Cdn
AMP-Access-Control-Allow-Source-Origin
X-Content-Powered-By
X-Yandex-Sdch-Disable
X-Geo-Country
X-FTR-Cache-Host
X-Kong-Upstream-Latency
X-Kong-Proxy-Latency
X-Via-JSL
MicrosoftSharePointTeamServices
X-Origin-Server
X-Varnish-Age
X-B
Alternate-Protocol
X-N
X-Correlation-Id
X-Rid
X-Erf-Bev-Bev-Is-Generated
Host-Header
X-Daa-Tunnel
X-Ser
X-Erf-Bev-Bev
X-Varnish-Backend
X-Ruxit-Js-Agent
X-Fastcgi-Cache
X-AppVersion
X-Activity-Id
X-Az
X-WebKit-CSP-Report-Only
X-Esi
X-ATG-Version
X-Amz-Replication-Status
Cache-Tags
X-Type
X-Git-Hash
X-Debug-Info
DC
X-FB-Debug
Actual-Object-TTL
X-App-Server
X-App-Environment
X-Signature
X-TT
X-Whom
X-B-Cache
Section-Io-Cache
Paypal-Debug-Id
Retry-After
Frame-Options
X-Varnish-Grace
X-Contextid
X-Edge
Surrogate-Key
X-Request-Guid
X-Status
Fastcgi-Useragent
X-Content-Options
X-AOL-HN
Host
Healthy
X-Seen-By
X-Cache-Action
X-RateLimit-Remaining
Source
X-Host-Name
X-XRDS-LOCATION
X-HTML-Minification-Powered-By
X-IPLB-Instance
X-Endurance-Cache-Level
Refresh
X-Pinterest-Direct
X-B3-Sampled
X-Tumblr-User
X-Tumblr-Pixel-0
X-Tumblr-Pixel
X-Instance
X-Upgrade-Enabled
From-Origin
Access-Control-Allow-Method
X-ECACHE
X-Cache-Rule
X-Accel-Buffering
X-Response-Served-From
X-Cache-Operation
X-Amz-Apigw-Id
X-Drupal-Cache-Tags
X-Mid
X-ProcessESI
Odigeo-Trace-Id
VIX-Pulpo-Node
VIX-Pulpo-Upstream-Status
X-Region
X-MCACHE
X-Rule
X-RemovedCookies
X-UUID
Eomportal-Instance
X-Cacheable-TTL
X-Amzn-RequestId
Payment
X-L-Path
X-Environment-Context
MS-CV
X-Cache-Control
X-Cache-Time
X-FW-Type
X-Is-Bot
X-Rendered-As
X-Varnish-Server
X-FW-Static
X-FW-Server
X-FW-Hash
X-FW-Serve
X-FW-Dynamic
Datacenter
NR-ENABLED
Cache-Status
Countrycode
X-WA-Info
X-Adobe-Loc
WPE-Backend
X-Adobe-Content
Srv
Xserver
X-Protected-By
X-URL
X-GeoIP
Content-Disposition
X-APP-VERSION
X-PressLabs-Stats
X-Wix-Request-Id
NGB
X-Time
X-Cluster
X-Cached-By
X-EdgeConnect-Cache-Status
X-RequestSource
X-Cache-Server
X-Akamai-Transformed
X-VCache
X-SERVER-NAME
X-Akamai-Request-ID2
X-UnsetCookies
Uber-Trace-Id
X-Correlation-ID
X-Yottaa-Metrics
X-Yottaa-Optimizations
X-Origin-Response-Time
X-Tt-Trace-Tag
X-Tt-Trace-Host
Version
X-Tumblr-Pixel-2
X-Tumblr-Pixel-1
X-Load-Cache
X-Mode
X-Mobile
X-IPS-LoggedIn
X-Proxy
Access-Control-Request-Headers
X-Handled-By
X-Cache-Remote
X-Unique-Id
X-PHP-Backend
Liferay-Portal
Filterid
X-Path-Route
X-NGENIX-Cache
Cross-Origin-Window-Policy
X-Viewer-Country
X-CCM
X-ES-SERVER
X-Framework
Meta-Geo
X-Cache-Var
X-Backend-Name
X-Azure-Ref
X-FireWall-Port
Accept-Language
X-No-Session
X-Cache-Var-Map
X-Adobe-Source
X-UA-Device-Type
X-RN-RSRV
X-Presslabs-Stats
X-Cache-NGX
Akamai-GRN
X-Time-Microsecs
X-LJ-Flow-ID
X-AWS-Id
Decoy-Debug-Status
X-VWS-Id
X-Storage
Decoy-Debug-TTL
ServedBy
Cache
DSUID
Decoy-Debug-Key
X-OCL
X-Cache-Status-Check
X-PCL
X-MP-GENERATED-AT
Section-Io-Origin-Status
Section-Io-Id
X-SayCDN-TTL
X-TX-ID
Section-Io-Origin-Time-Seconds
X-RTag
X-NCache
X-Cache-Config
X-Say-Cacheable
Webserver
Section-Origin-Responded
X-Human
X-Real-IP
X-ApacheServer
Cache-Hits
X-Info
X-PERF
X-R9-Blue-Green-Version
X-Say-TTL
Fastly-SSL
X-FW-Version
Ms-Operation-Id
X-Web-Node
X-Pubstack
X-Redis-Cache
Now
Mn-Server-Ip
Upgrade-Insecure-Requests
X-ProxyCache-Status
X-ProxyCache-Key
Cleartype
Cache-Name
X-FC-Vary-Parameters
X-Hl-Ver
X-Device-Type
TWC-Device-Class
X-Origin-Hint
Property-Id
Origin-Edge-Control
Origin-Cache-Control
S-Rt
X-Bc-Bl
X-Origin
X-Format
TWC-GeoIP-Country
TWC-Connection-Speed
TWC-GeoIP-LatLong
X-CS
Webcakes-Region
X-NWS-UUID-VERIFY
X-Access
X-Cache-Enabled
X-Via-Fastly
Webcakes-App-Name
Webcakes-App-Version
X-Section
TWC-Locale-Group
X-ServerID
X-BYPASS-REASON
TWC-Privacy
X-UPSTREAM-Address
X-Amzn-Remapped-Content-Length
X-Generated
X-BCube-Filmed-By
X-Alternate-Cache-Key
X-FB-TRIP-ID
X-Detected-As
X-EIG-Tracking-Id
Selected-Fe
X-CSRF-Token
X-From
X-Loop
X-Sorting-Hat-ShopId
X-Timing-Wait
X-TNCMS
X-Www-Served-By
X-Routing-Service
X-SaId
X-Site-Version
X-Shopify-Stage
X-ShopId
X-ShardId
X-Xfnlog-Site
X-Geo
X-Locale
X-JoinUs
X-IP
X-Hyper-Cache
X-Sorting-Hat-PodId
X-Zipkin-Id
X-Proxy-Build
X-NYM-Debug-Backend
X-Proxied
DB-Nickname
X-Varnish-Cache-Hits
Azure-RegionName
Azure-Version
X-Goog-Meta-Goog-Reserved-File-Mtime
Azure-InstanceId
Azure-SlotName
X-Hosted-By
Azure-SiteName
Load-Balancing
X-NewRelic-App-Data
X-Content-Age
X-Source
Ec-Rule-Version
X-Qloud-Router
X-Labrador-Cache-Channel
X-Vcache
X-PHP-Host
SD-X-WS
Cache-Tv-Group
X-Old-Content-Length
X-Air-Hostname
X-Cache-NE
X-Cluster-Node
Country
FilterID
User-Agent
X-Varnish-Hostname
X-Cache-Host
Time
X-Pad
X-Ua
X-Litespeed-Cache
X-Release
X-CDN-Forward
X-Drupal-Cache-Contexts
X-Backend-TTL
X-Cache-TTL-Remaining
X-Cache-2
X-EC-Lua
X-Parent-Response-Time
Locale
X-Urbn-Site-Id
X-Urbn-Context-Path
S-Cnection
X-RCS-CacheZone
X-RateLimit-Limit
Server-Info
X-Cache-Backend
X-Akamai-Request-ID
X-Webkit-CSP
X-Cache-Grace
X-Proxy-Cache-Status
X-Forwarded-Host
X-Microcachable
X-Tumblr-Pixel-3
X-Debug-Cache
Proxy-Connection
X-Soup
X-NC
NGX
OT-Force-Account-Verify
X-FORWARDED-FOR
X-Srv
Tracecode
Sid
X-Tb
X-SRV
Apigw-Requestid
X-UA
Server-Host
X-ARC
ServerName
X-B-Cookie
X-PAYTM-SRV-ID
True-Client-Country-4JS
UCS
X-Region-Sid
Meta-Geo-Continent
X-Uri
X-Reqid
X-CF-Lambda-Version
X-Processor
Viewtype
T-Server
MD5-Digest
X-D
X-Application
X-CF-Lambda-Fn
X-Date
X-Developer
X-Instart-Info
Machine
Pagetype
Fastcgi-X-Cache-Version
Content-Script-Type
Content-Style-Type
GEO-REGION-INFO
X-Generated-On
M-TraceId
X-A
X-A-Ccd
X-G
VivaBuild
X-A-Dam
X-A-Dcw
Rendered-Blocks
X-DevSite-Last-Modified
Arc-Country
X-External-Request-Id
Who
X-Proto
X-Aed
AsisCache
BehaviorPad-Version
X-A-Wwc
X-A-Dgt
X-Accel-Expires-Debug
X-Level-Front-Cache
Mobile-Detection-Method
X-Destination
X-Rojux
X-SRCache-Key
Cache-Key
X-VG-WebServer
X-VG-WebCache
Xc-Version
X-Transaction
X-Dc
X-Session-Fingerprint
Geo-Info
X-ServiceProvider
X-Vtex-Processado-Em
X-Vdms-Version
X-Vdms-Path
X-Connection-Hash
X-Cluster-Name
X-Rewrite-Enabled
X-Trace-Id
X-Trv-Group
X-S
X-Twitter-Response-Tags
X-ScT
X-Vtex-Remote-Cache
X-Swa-Ws
X-S-Cookie
X-Magnolia-Registration
User-Cache-Control
X-Gen-Mode
X-Cache-Bucket
Kp-EeAlive
IsBot
X-Core-Value
Magicmarker
N-Cache
X-Fmm-Version
Mail-Subject
X-Generated-In
X-Cache-Info
FNAC-ModuleRouting
X-Hnp-Log
X-Cms-Context
X-Hash
X-TT-TIMESTAMP
X-Generation-Time
X-Clara-WADP
X-Geo-Header
NM-Fastcgi-Cache
On-Server
X-Via-PopV
X-WADP-Cache
Thinkindot-Control
Thinkindot-CacheControl-Type
X-Device-Os
V-Age
We-Hiring
Vix-Hermes-Req-Id
GEO-INFO
Thinkindot-CacheControl
X-Wikidot-Backend
X-Bip
Release
X-Block-Status
X-Dispatcher-Server
X-Dispatch
X-Via-PopH
X-Wikidot-Static-Cache
X-Worker
Web-Mar-Node
X-User
X-Cache-PHP
X-Ms-Request-Id
X-Micro-Cache
X-Matched-Rule
X-Thanos
X-Location
X-SN
X-Node-Id
X-SD-PageType
X-Scheme
X-Vgn-Hpd-Reason
X-Owner
X-SIPLIST1
X-NodeID
X-Thinkindot-L3
X-Ms-Version
CDCHOST
X-LAGOON
X-Hit
X-Newrelic-Synthetics
Cf-Ipcountry
X-Envoy-Decorator-Operation
X-TrackingId
X-Has-Esi
X-Platform-Server
Node
X-Policy
X-Webstats-RespID
X-Servername
X-We-Are-Hiring
Wxu-Next-Region
Wxu-Next-Hostname
Is-Eu
X-Developers
X-JWT-State
X-Origin-Date
X-Origin-Expires
X-TA-CDN-Provider
X-Server-W
Wxu-Next-Commit
X-Agile-Id
X-Cache-Tags
X-Request-Host
X-Cache-FS-Status
Fastly-Drupal-HTML
X-Cache-URL
X-RateLimit-Remaining-Second
X-Request-UUID
X-Clientip
X-CGP
X-RateLimit-Limit-Second
X-Branch-Name
X-Auto-Login
X-Reboot
X-VServer
X-Agile-Age
X-Backend-Host
X-Backend-State
X-Req
X-Is-Gdpr
X-BBXSRF
X-Agile
Viewport
Platform
L5d-Success-Class
X-VC-Cache
HA-Ipaddr
X-Nginx-Cache-Key
Ha-Gx-Prefs
X-Logging-Id
Apple-News-Services-Request-Url
Adler-Geo
X-Fastly-Cache
Apple-News-Services-Handled
Apple-News-Services-Host
X-Response-By
X-Variation
Memcached
X-Varnish-Cacheable
Apple-News-Services-Parsed-Url
AKAMAI
X-Epic-Correlation-Id
X-Eu-Site
Server-Hostname
X-Envoy-Upstream-Healthchecked-Cluster
X-VG-TLSProxy
X-Method
C-Via
Sever-Int
Gh-Request-Id
X-Skip-Cache
Server-Ext
RNT-Machine
X-Distributor
X-Mvc-Supplant-Cachable
RNT-Time
X-Slack-Backend
X-Distil-CS
Rt-Fastcgi-Cache
X-Irp-Debug
X-DC
X-Ah-Environment
X-Contensis-Viewer-Groups
CacheControlHeader
X-Core-Mission
X-Li-Pop
X-Rebelmouse-Surrogate-Control
X-Li-Fabric
X-GoCache-CacheStatus
X-Rebelmouse-Cache-Control
X-App
X-Varnish-Authentication
X-LI-UUID
X-Var-Ttl
W
Cache-Cookie-Set-From
X-TIME
Fastly-SIE
Fastly-SWR
Cache-Cookie-Set-Idcheck
Esi-Enabled
Cache-Cookie-Set-Lfrom
X-Cache-ASPX
X-Nc
Server-ID
X-LI-Proto
X-Be
X-Refresh
X-Compress-Hint
L
X-Server-IP
Cache-Host
X-TH-Server
Ohc-File-Size
X-Varnish-Beresp-Grace
X-Varnish-Beresp-Status
X-Varnish-Beresp-Ttl
X-App-Name
X-CLOUD-TRACE-CONTEXT
X-Loc
LB
X-VCT
X-Cache-Debug
X-Gzip
X-AIR-PT
X-Wa
X-Mvc-Supplant-OutputCached
X-Esi-Check
X-Cache-Id
X-Origin-CC
X-Origin-TTL
X-Configured-By
HostName
X-Cdn-Srv
X-App-Version
X-Sucuri-ID
X-BC
X-ZONE
X-Storefront-Renderer-Rendered
X-S-Maxage
Server-Surrogate-Control
X-SVT-ORM-VERSION
X-NU-AKA-ACS-Version
Server-Cache-Control
X-Generated-By
X-Key
X-SVT-ORM-RULES
NtCoent-Length
X-B3-Traceid
X-MSEdge-Flight
Ohc-Response-Time
X-MSEdge-Features
X-Edge-Location
Memory
X-FPC
X-Bc
X-Zone
MIME-Version
Pragrma
X-Rocket-Nginx-Bypass
X-Varnish-Ttl
X-Varnish-URL
X-CF-Powered-By
CACHE
X-Cdn-Forward
X-Servedbyhost
X-Svr
X-Pjax-Url
Referer-Policy
X-Debug-Panamera-Host
X-Debug-Panamera-Sitecode
Request-Country
Request-EU
Locid
Heartbleed
X-Nginx-Cache
X-Varnish-Hits
X-COUNTRY
X-Batcache
Resin-Trace
Fastly-Backend-Name
X-Request-URI
X-Shopify-Generated-Cart-Token
X-VCL-Version
FSS-Cache
X-BACKEND-TTL
X-Up
SRV
X-Gamma-Serve
X-Via-CDN
X-GEO
WZWS-RAY
X-Aicache-OS
X-ElasticPress-Query
Hostname
X-ND-Cache
X-Minions-Version
X-BE
X-Ratelimit-Remaining
X-Sucuri-Cache
Geoip-Latitude
GeoIp-Country-Code
CF-Cached-On
X-CACHE-KEY
X-Amzn-Requestid
Lfy
GeoIP-Country-Code
X-WebServer
Cteonnt-Length
X-Proxy-Upstream
X-Oss-Request-Id
X-Oss-Server-Time
X-Oss-Storage-Class
Product
X-Oss-Object-Type
X-Oss-Hash-Crc64ecma
GeoIP-Latitude
HitType
X-Check-Cacheable
Powered-By-ChinaCache
X-ECache
X-Vcl-Version
Mime-Version
DCR-Decision-By
My-App
X-Fetched-On
DCR-Processing-Time-Ms
X-Edge-Server
X-Sn-Servicetimems
Cdn-Request-Time
Cdn-Host
X-Cdn-Origin
X-Unique-ID
X-Fastly-Cache-Status
Location
X-HS-Status
X-Azure-Ref-OriginShield
X-Fastly-Country-Code
Pramga
X-GeoIP-Country-Code
X-PJAX-URL
X-NGINX-Cache
Ohc-Cache-HIT
X-CSRF-TOKEN
X-PF-Uncompressing
SN
X-ServedByHost
X-Varnish-Url
X-LB-ID
X-Newrelic-App-Data
Amp-Access-Control-Allow-Source-Origin
X-Fastly-Backend-Reqs
X-Pf-Uncompressing
X-Ratelimit-Limit
X-OVcl
X-Request-Start
X-CACHE-AGE
X-VarnishDD-TTL
X-OVcl-Cache
X-Served-From
Group
URI
PFcat
X-Fpc
X-Vgn-Hpd-Variations-Key
X-B3-Spanid
Cdn
Dt-Cache-Category
X-Vgn-Hpd-Ssi
X-Vgn-Hpd-Cached
X-Shard
X-Swift-Error
X-Render-Time
X-Platform
X-B3-SpanId
X-Varnishpool
XServer
X-Via-Ucdn
X-Instart-Isnd
X-Ratelimit-Reset
X-Ftr-Cache-Host
X-Tec-Api-Root
X-Via-NSCOPI
X-Tec-Api-Version
X-IN-APIGATEWAY
Cf-Alt-Svc
A
CloudFront-Viewer-Country
X-Tec-Api-Origin
WWW-Authenticate
X-Request-Time
X-IN-APIGATEWAYSSL
Country-Code
X-Cache-Expired-At
X-Client-Ip
Geoip-City
X-Ocache
X-Tb-Optimization-Total-Bytes-Saved
X-Varnish-Beresp-TTL
X-Debug-Cache-Fetch
X-DPWN-IS-SECURE
X-Debug-Cache-Store
Origin
X-WR-MODIFICATION
Lb
X-WPE-Loopback-Upstream-Addr
X-Planisys-CDN-Rules
SID
X-CUA
X-Debug-Ysi-Auth
X-Planisys-CDN-Cache
X-LiteSpeed-Cache-Control
X-Debug-Xas-Auth
X-Amzn-Remapped-Connection
PICS-Label
Server-Ttl
X-Debug-Do-Not-Cache-Uri
X-C
Cloudfront-Viewer-Country
X-StackifyID
Epwk-X-Cache
X-Amzn-Remapped-Date
X-Planisys-CDN-TTL
X-Apw-Access-Object
X-WA
CF-IPCountry
X-Debug-Cache-String
X-Apw-Access-Token
X-Apw-Access-Action
X-Debug-Cache-Bypass
X-Debug-Cache-Status
X-Apw-Hits
X-Cache-Hm
Region
Request-Time
X-Cache-Hfrom
NnCoection
X-Sigma-Backend
Pics-Label
X-Oss-Cdn-Auth
Proxy-Firewall
X-Cache-Tag
X-Country-IP
Host-ID
X-Acquia-Application-UUID
X-Acquia-Purge-Tags
X-Acquia-Application-Trace
X-Nananana
X-Rocket-Build-Number
Cneonction
X-Acquia-Site
X-Sigma
X-Dw-Trace-Id
X-APP
X-RPM
X-Varnish-ID
X-RPS
X-SB
X-Request-URL
X-B3-Parentspanid
X-Html-Edge-Cache
X-ElasticPress-Search
Req-ID
TTL
X-DI
X-Li-Proto
X-RSL
X-Action
X-DW
X-DB
X-Akamai-ERRuleID
X-Akamai-ERPolicy
X-VC
X-DSS