Threat Level: green Handler on Duty: Brad Duncan

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
Content-Length
Strict-Transport-Security
X-Frame-Options
X-Content-Type-Options
Last-Modified
Link
CF-Cache-Status
Cf-Request-Id
CF-RAY
Accept-Ranges
ETag
Expect-CT
Pragma
X-Powered-By
X-Cache
Via
Age
X-XSS-Protection
Content-Security-Policy
Report-To
NEL
Access-Control-Allow-Origin
Referrer-Policy
X-Xss-Protection
Content-Language
X-Amz-Cf-Pop
X-Amz-Cf-Id
X-Cache-Hits
P3P
X-UA-Compatible
X-Served-By
X-FRAME-OPTIONS
X-Download-Options
X-Timer
Access-Control-Allow-Headers
X-Request-Id
X-Varnish
Access-Control-Allow-Methods
Access-Control-Allow-Credentials
X-Adblock-Key
X-AspNet-Version
X-Permitted-Cross-Domain-Policies
Alt-Svc
X-Runtime
Content-Security-Policy-Report-Only
X-Drupal-Cache
X-DNS-Prefetch-Control
X-Cache-Status
X-Check
X-Generator
X-Cacheable
X-Request-ID
X-Iinfo
X-Envoy-Upstream-Service-Time
P3p
Timing-Allow-Origin
Feature-Policy
X-Content-Security-Policy
Status
X-Drupal-Dynamic-Cache
Content-Encoding
Access-Control-Expose-Headers
X-AspNetMvc-Version
Upgrade
X-CDN
X-Ua-Compatible
Access-Control-Max-Age
CF-Ray
X-Via
X-Robots-Tag
X-Cache-Group
X-UA-Device
Server-Timing
X-Dns-Prefetch-Control
Request-Context
Keep-Alive
X-AH-Environment
X-Amz-Request-Id
X-Turbo-Charged-By
X-Backend
X-Proxy-Cache
X-Amz-Id-2
X-Age
X-Ws-Request-Id
Host-Header
X-Hacker
X-Server-Powered-By
X-Server
X-Rq
X-Vhost
X-LiteSpeed-Cache
X-Varnish-Cache
X-Amz-Version-Id
Grace
X-Dispatcher
Cf-Edge-Cache
EagleId
Allow
X-Styx-Req-Id
X-Pantheon-Styx-Hostname
X-Device
X-Page-Speed
X-WebKit-CSP
X-Nginx-Cache-Status
X-Swift-CacheTime
X-Swift-SaveTime
Accept-CH
X-Aws-Lambda-Call-Status
Ali-Swift-Global-Savetime
X-Host
X-Node
Cf-Railgun
X-Pingback
X-Cache-Spec
X-OneAgent-JS-Injection
X-Server-Id
X-Backend-Server
X-Akam-SW-Version
Surrogate-Control
Request-Id
EagleEye-TraceId
X-Response-Time
X-Cache-Lookup
Accept-CH-Lifetime
X-Readtime
X-EdgeConnect-MidMile-RTT
X-EdgeConnect-Origin-MEX-Latency
Content-Location
X-Akamai-Path-Stats
X-HW
X-Content-Security-Policy-Report-Only
X-Cloud-Trace-Context
X-Application-Context
Rating
X-Trace
Fastly-Restarts
X-Clacks-Overhead
X-WebKit-CSP-Report-Only
X-Nginx-Upstream-Cache-Status
X-Country
X-Url
X-CST
X-Ruxit-Js-Agent
X-MS-InvokeApp
X-Rack-Cache
X-Amz-Server-Side-Encryption
X-Edge
X-Oneagent-Js-Injection
X-PC
X-Vname
X-TtlSet
Edge-Control
Accept-Ch-Lifetime
X-Mod-Pagespeed
X-Content-Type
X-B3-TraceId
X-FastCGI-Cache
X-Vcap-Request-Id
X-ESI
X-D2id
Xkey
X-Exp-Id
X-Kinja
X-Exp-Variant
X-GoogleNews-Bot
X-Cdn-Fetch
X-Kinja-Server
X-Use-Magma
X-Kinja-Build
X-Kinja-Revision
Verso
Cache-Tag
X-GitHub-Request-Id
Service-Worker-Allowed
Cf-Apo-Via
X-Powered-By-Plesk
X-Mcache
X-Amz-Rid
X-Varnish-TTL
RTSS
X-Navigation-Version
X-VARITI-CCR
X-Server-Name
X-ECACHE
X-Abt-Application-Version
X-Ruxit-JS-Agent
X-Ttl
X-Version
X-Upstream
X-Client-IP
X-Cnection
X-Ac
X-Cached
X-Element-Page-Cache
Arr-Disable-Session-Affinity
X-Kraken-Loop-Name
X-Instrumentation
X-Server-Lifecycle-Phase
X-Dw-Request-Base-Id
Permissions-Policy
SPRequestGuid
X-SharePointHealthScore
X-Px
SPIisLatency
X-Middleton-Display
X-Sol
Pagespeed
Display
SPRequestDuration
X-Cache-TTL
X-RateLimit-Remaining
Public-Key-Pins
X-Country-Code
X-NWS-LOG-UUID
Response
X-Middleton-Response
X-Ser
X-Cache-Key
X-Kinsta-Cache
X-Edge-Location-Klb
X-Midtier
X-Forwarded-For
X-Goog-Hash
X-SRCache-Store-Status
X-SRCache-Fetch-Status
Content-MD5
X-Correlation-Id
X-NF-Request-ID
X-Shield-Request-Id
X-DataDome
X-MSEdge-Ref
Front-End-Https
Access-Control-Request-Method
X-T
AR-SID
AR-PoweredBy
AR-ATIME
X-Recruiting
AR-CACHE
AR-Request-ID
X-B3-TraceId-Primal
TP-Cache
TP-L2-Cache
MRF-Tech
Mrf-Cache-Status
X-RateLimit-Limit
Nginx-Cache
X-Jurisdiction
X-HP-Webp
X-HP-Trace-Id
Edge-Cache-Tag
MicrosoftSharePointTeamServices
X-ORACLE-DMS-ECID
X-ORACLE-DMS-RID
X-Accel-Expires
X-Cdn
X-Daa-Tunnel
X-Mg-S
X-Erf-Bev-Bev-Is-Generated
X-Browser-Type
X-Erf-Bev-Bev
Accept-Ch
X-Content-Digest
TCN
X-Grace
X-Powered-CMS
X-Hits
X-Request-Received
X-Request-Processing-Time
X-Amzn-Trace-Id
X-HS-Combine-CSS
X-HS-Cache-Config
Server-Node
X-HS-Hub-Id
X-HS-Content-Id
X-Id
X-XRDS-Location
Server-Name
Filters
MS-Author-Via
X-Geo-Country
X-TEC-API-VERSION
X-TEC-API-ROOT
X-TEC-API-ORIGIN
Fastcgi-Cache
X-Frontend
Count-Hit
X-Distributor
X-Webkit-Csp
X-Origin-Server
X-Ezoic-Cdn
X-Ua-Browser
Filterid
X-LLID
X-Protected-By
X-Language
Cross-Origin-Opener-Policy
X-Fastly-Request-Id
X-F-Cache
S
X-Request-Handler-Origin-Region
X-B3-Sampled
X-Microsite
X-Seen-By
Charset
X-Forwarded-Proto
X-FB-Debug
X-Git-Hash
X-Amz-Meta-S3cmd-Attrs
X-Ratelimit-Reset
Host
X-PressLabs-Stats
X-LB-Cache
Payment
X-Page-Id
Cache-Status
X-VCache
X-ASPNET-VERSION
X-Cluster-Name
X-Ab
Surrogate-Key
X-Rid
Cache-Tags
X-Www-Served-By
X-Upgrade-Enabled
Realpath
X-Logged-In
Retry-After
Alternate-Protocol
Accept-Charset
X-Origin-Cache
X-Source
Access-Control-Allow-Method
X-DIS-Request-ID
X-Varnish-Backend
Cleartype
X-NGENIX-Cache
X-Template
X-Type
DC
Paypal-Debug-Id
X-AppVersion
X-Az
X-Activity-Id
X-Varnish-Grace
X-Wix-Request-Id
X-Flags
X-B-Cache
X-Aspnet-Duration-Ms
X-App-Environment
X-Amz-Replication-Status
X-Is-Crawler
X-Signature
X-Route-Name
X-Request-Guid
X-Providence-Cookie
X-Tb
X-B
X-Envoy-Decorator-Operation
ServerID
X-TT
X-Hostname
X-Revision
X-Cache-Age
X-Fastly-Request-ID
X-Kong-Proxy-Latency
X-Kong-Upstream-Latency
X-DynaTrace
Frame-Options
X-Node-Name
X-Contextid
X-Cache-Rule
X-Drupal-Cache-Tags
X-Fastcgi-Cache
X-TTL
X-Tt-Trace-Host
X-Tt-Trace-Tag
X-COUNTRY
X-Proxy
X-Pinterest-Rid
Amp-Access-Control-Allow-Source-Origin
Pinterest-Generated-By
Pinterest-Version
X-Goog-Stored-Content-Encoding
X-Goog-Stored-Content-Length
X-Goog-Storage-Class
X-Goog-Generation
X-GUploader-UploadID
X-Goog-Metageneration
Refresh
X-Debug
Cross-Origin-Resource-Policy
X-Mobile
X-Content-Options
X-Load-Cache
X-EdgeConnect-Cache-Status
Referer-Policy
X-Cache-Control
Node
X-Response-Served-From
X-N
Country
NGB
X-Original-Request-Id
X-Varnish-Server
X-Varnish-Age
X-Magnolia-Registration
Akamai-GRN
Viewport
X-Debug-IsConnected
X-Debug-IsPreview
X-Environment-Context
Content-Disposition
X-Instance
X-Status
X-Cache-Time
X-L-Path
X-NYM-Debug-Backend
X-Content-Powered-By
X-Cacheable-TTL
X-Cache-Grace
X-Jobs
X-G
X-Servername
X-Is-Bot
X-Page-View
X-Rendered-As
X-Adobe-Loc
X-Akamai-Request-ID2
X-Adobe-Content
X-Whom
Url
Uber-Trace-Id
VIX-Pulpo-Node
VIX-Pulpo-Upstream-Status
Access-Control-Request-Headers
X-Cache-TTL-Remaining
X-ProcessESI
X-RemovedCookies
X-Real-IP
Srv
X-Framework
X-Yottaa-Metrics
X-Yottaa-Optimizations
X-Trace-Id
X-User-Agent
X-Mid
X-Via-JSL
X-Cache-Expired-At
X-Unique-Id
X-APP-VERSION
X-CDN-Forward
X-Cache-Hit
X-Tumblr-Pixel-1
X-XRDS-LOCATION
X-Tumblr-Pixel-0
X-Tumblr-User
X-Oracle-Dms-Ecid
X-Drupal-Cache-Contexts
X-Tumblr-Pixel
X-Cache-Operation
X-Oracle-Dms-Rid
Version
X-URL
Accept-Language
Countrycode
Healthy
X-Rule
X-Http-Reason
X-Mg-Request-UUID
X-Akamai-Edgescape
X-Backend-Name
X-Debug-Info
X-Cache-Action
X-Litespeed-Cache
Protected
Section-Io-Cache
Content-Secure-Policy
X-VC-Cache
X-Hosted-By
X-Tt-Logid
X-Azure-Ref
X-App-Server
Xserver
X-Server-ID
X-IPLB-Instance
X-Api-Version
X-IPLB-Request-ID
X-Generation-Time
Backend
Server-Info
X-SRV
X-Content
X-Restarts
X-Generated-By
X-Time
X-Mobile-URL
X-Storage
X-FW-Type
X-RN-RSRV
X-FW-Hash
X-FW-Dynamic
X-FW-Serve
X-FW-Server
Meta-Geo
X-FW-Static
X-UPSTREAM-Address
X-Cache-Status-Check
X-Amz-Apigw-Id
Liferay-Portal
X-Amzn-RequestId
X-HTML-Minification-Powered-By
Onion-Location
CF-IPCountry
Azure-SiteName
TWC-Device-Class
Azure-Version
X-FireWall-Port
Azure-RegionName
Azure-SlotName
X-Ratelimit-Remaining
S-Rt
X-Format
TWC-Connection-Speed
Property-Id
Webcakes-App-Name
X-Access
Webcakes-App-Version
Azure-InstanceId
X-Cms-Context
X-Varnish-Cache-Hits
TWC-Locale-Group
TWC-GeoIP-LatLong
TWC-GeoIP-Country
X-Locale
X-Section
X-OCL
GEO-INFO
TWC-Privacy
X-PCL
X-Origin-Hint
X-Handled-By
Webcakes-Region
X-Mode
CDN-Uid
CDN-RequestId
CDN-RequestCountryCode
Load-Balancing
CDN-PullZone
X-SaId
X-Labrador-Cache-Channel
Locale
X-Server-W
X-JoinUs
X-SayCDN-TTL
CDN-EdgeStorageId
X-Say-Cacheable
CDN-CachedAt
X-Say-TTL
X-Skip-Cache
X-Varnish-Beresp-Grace
CDN-Cache
X-Region
X-Urbn-Context-Path
X-Forwarded-Host
X-Cache-Host
X-Urbn-Site-Id
X-Redis-Cache
X-AWS-Id
X-Nginx-Cache-Key
X-Content-Age
X-Proxy-Cache-Status
X-Provided-By
X-Edge-Location
X-Site-Version
X-Sql-Duration-Ms
X-Sql-Count
X-Adobe-Source
X-PHP-Host
Web-Mar-Node
X-VWS-Id
X-LJ-Flow-ID
X-Varnish-Hostname
MS-CV
Ms-Operation-Id
Apigw-Requestid
X-GeoCountry
X-Proto
X-Proxied
X-Xfnlog-Site
Eomportal-Instance
X-PHP-Backend
X-Zipkin-Id
X-Cache-Server
X-Request-Time
X-Routing-Service
X-RTag
X-R9-Blue-Green-Version
X-Via-Fastly
X-Web-Node
X-Device-Type
X-Detected-As
X-Cache-Type
Mn-Server-Ip
X-Extlb
X-GeoCode
DB-Nickname
X-FB-TRIP-ID
Cache-Name
X-ShardId
X-Alternate-Cache-Key
X-ShopId
X-Sorting-Hat-ShopId
X-Sorting-Hat-PodId
X-Shopify-Stage
X-Varnishpool
X-No-Session
X-Tid
X-Ms-Version
X-UA-Device-Type
X-Ms-Request-Id
WP-Super-Cache
X-Storefront-Renderer-Rendered
X-ProxyCache-Key
X-ProxyCache-Status
X-DynaTrace-JS-Agent
X-BYPASS-REASON
X-TIME
X-Cache-Enabled
X-Uri
X-ECache
X-Hl-Ver
X-Loop
X-TNCMS
X-WP-CF-Super-Cache
X-WP-CF-Super-Cache-Cache-Control
X-Vgn-Hpd-Reason
X-Amzn-Remapped-Content-Length
X-ServerID
X-Proxy-Build
Selected-Fe
X-Timing-Wait
X-Ua
Xet-Cookie
X-Varnish-Ttl
X-Reqid
X-Pubstack
X-LSADC-Cache
X-B3-Traceid
X-Zen-Fury
X-Tumblr-Pixel-2
X-Soup
X-Dc
X-UUID
X-Cache-NGX
X-Nginx-Cache
X-Service
X-Origin-Date
Fastcgi-Useragent
X-Newrelic-Synthetics
X-Aspnetmvc-Version
X-Correlation-ID
X-Tec-Api-Root
X-Tec-Api-Origin
X-Tec-Api-Version
From-Origin
ServedBy
X-GEO
X-Cache-Debug
X-MP-GENERATED-AT
X-Ratelimit-Limit
Origin
X-Webkit-CSP
X-Origin-CC
X-Origin-TTL
X-TA-CDN-Provider
Source
X-Varnish-Hits
X-Human
Cache
Fastly-Drupal-HTML
X-App-Version
X-Varnish-Beresp-Ttl
X-Cached-By
Cross-Origin-Window-Policy
X-NewRelic-App-Data
X-Cache-Tags
X-Datadome
Webserver
X-RCS-CacheZone
Rip
BehaviorPad-Version
MD5-Digest
Rendered-Blocks
Upgrade-Insecure-Requests
X-Rewrite-Enabled
X-Presslabs-Stats
X-ScT
Host-ID
LB
Environment
Expiry
Lang
Odigeo-Trace-Id
Ngx.Var.Host
X-Shop-Environment
X-Orig-Expires
Cdnsip
X-VG-WebCache
X-Tenant
X-Processor
X-Vdms-Version
X-TIM-N
X-User
X-Vdms-Path
X-PBS-Appsvrname
X-Parent-Response-Time
CPC-Age
CPC-Cache
DCR-Decision-By
Cdncip
A
Xc-Version
X-SRCache-Key
DCR-Processing-Time-Ms
Meta-Geo-Continent
X-Aed
X-Destination
X-Connection-Hash
X-Developer
X-A-Wwc
X-A-Dgt
WPO-Cache-Status
X-Ec-Fail
X-AK-Request-ID
X-Application
X-Bc-Bl
X-BCube-Filmed-By
X-Cache-NE
X-S
X-S-Cookie
X-Rojux
X-ARC
X-B-Cookie
X-A-Dcw
X-D
X-NAPM-TraceId
SD-X-WS
X-External-Request-Id
T-Server
Surrogated-Key
X-Forwarded-Path
Sslversion
VNS-Cache
VNS-Age
X-A-Dam
X-A
WPO-Cache-Message
X-Ec-GeoHdr
X-A-Ccd
X-Request-Host
Mime-Version
X-Cluster
OT-Force-Account-Verify
X-Debug-Cache
X-FW-Version
X-Owner
X-Origin-Time
X-Dispatcher-Number
X-Nyt-Route
X-Served-From
X-Gdpr
X-AOL-HN
X-Accel-Buffering
Redirect-Candidate
X-Aicache-OS
TDXMobile
Fastly-Backend-Name
AKAMAI
Server-Host
Thinkindot-CacheControl
Thinkindot-Control
Thinkindot-CacheControl-Type
X-Auto-Login
X-INCAP-ABP
X-JWT-State
X-Is-Gdpr
X-Level-Front-Cache
X-Sucuri-Cache
X-Thinkindot-L3
X-Sucuri-ID
X-HS-Content-Campaign-Id
X-Has-Esi
X-Core-Value
X-CMSURLCustom
X-Developers
X-Generated-On
X-Geo-Header
X-Cdn-Srv
X-Worker
X-WP-CF-Super-Cache-Active
Web-Mar-Region
Wxu-Next-Commit
Wxu-Next-Hostname
Vix-Hermes-Req-Id
V-Age
Tube-Got-Results
Tube-Return
Wxu-Next-Region
X-V-Cache
X-S-Maxage
X-Cache-Bucket
X-Cache-Id
X-Cache-Info
X-Branch-Name
X-BBC-Edge-Cache-Status
Tube-Get-Contents
X-ATG-Version
X-Azure-Ref-OriginShield
X-Ad-Defer-Variation
X-SB
NGX
NM-Fastcgi-Cache
Origin-CC
Mobile-Detection-Method
Memcached
L
Machine
X-Sigma
Origin-EX
Platform
State
Svr
X-Cdn-Origin
Servername
X-Scale
X-Scheme
Producers
Req-Svc-Chain
Traceparent
X-Clara-WADP
X-Region-Sid
X-Minions-Version
X-RateLimit-Remaining-Second
X-Loc
X-Hash
X-Gateway-Skip-Cache
X-GeoIP
X-Gzip
X-RateLimit-Limit-Second
X-NCache
X-Planisys-CDN-Rules
X-Planisys-CDN-TTL
X-Pool
X-Planisys-CDN-Cache
X-Proxy-Cache-Info
X-Qloud-Router
X-NodeID
X-Origin-Response-Time
X-Gateway-Request-Id
X-Gateway-Cache-Status
X-DefElseHash
X-DefHash
X-Device-Os
X-Rocket-Build-Number
X-Core-Mission
Kp-EeAlive
X-Cluster-Node
X-Rocket-Nginx-Serving-Static
X-DPWN-IS-SECURE
X-Ec-Custom-Error
X-Fmm-Version
X-Gamma-Serve
X-Gateway-Cache-Key
X-Fetched-On
X-Fastly-Backend
X-Request-URI
X-Epic-Correlation-Id
X-Esi-Check
X-Ckpd-Fst-Backend
Tube-Got-Eval
X-Sn-Servicetimems
Click-Count-Action-Start
X-Varnish-CookieHashed-On
Click-Count-Error
X-Varnish-CookieINHashed-On
X-Varnish-Remaining-TTL
X-Slack-Backend
Apple-News-Services-Request-Url
Candidate-Md5Url
X-VServer
CloudFront-Viewer-Country
Cmsid
Cmstype
Datacenter
Country-Code
Decoy-Debug-Key
Decoy-Debug-Status
X-Viewer-Country
Cluster
Decoy-Debug-TTL
Fastly-GeoIP-CountryCode
X-SplitTest
X-Platform-Server
Adler-Geo
X-SIPLIST1
Fastly-SIE
X-VG-TLSProxy
X-Wix-Viewer-Type
Is-Eu
X-WADP-Cache
X-SVT-ORM-RULES
X-Sigma-Backend
Apple-News-Services-Host
Apple-News-Services-Handled
IsBot
X-Variation
Apple-News-Services-Parsed-Url
Fastly-SSL
X-SVT-ORM-VERSION
X-Varnish-Beresp-Status
Fastly-SWR
X-Tx-Id
X-Cache-Remote
X-Origin
X-Udemy-Cache-App-Namespace
X-Datadog-Trace-Id
X-Gen-Mode
X-Block-Status
X-Hnp-Log
CDCHOST
X-Datadog-Sampling-Priority
Server-Hostname
Sever-Int
Server-Ext
X-Datadog-Parent-Id
Gh-Request-Id
X-GeoIP-City
Release
User-Cache-Control
X-Pass-Why
X-Tumblr-Pixel-3
We-Hiring
X-Mvc-Supplant-Cachable
Mail-Subject
Cache-Host
X-Bip
X-Var-Ttl
Ec-Rule-Version
X-Csrf-Jwt
X-CGP
Canary
X-Thanos
X-Clientip
Ha-Gx-Prefs
X-Eu-Site
X-CacheTTL
X-Up
X-Irp-Debug
DSUID
X-Optimistic-Header
L5d-Success-Class
X-FC-Vary-Parameters
HA-Ipaddr
X-LB-NoCache
X-Policy
X-Forwarded-Site
X-Trace-ID
WebServer
X-IPS-LoggedIn
X-Mvc-Supplant-OutputCached
Memory
Pics-Label
Time
X-Esi
X-Tb-Optimization-Total-Bytes-Saved
X-CACHE-AGE
X-Nf-Request-Id
X-ND-Cache
Ssr
X-Dispatch
HostName
X-CSRF-Token
X-ZONE
Sid
X-VC
X-Refresh
X-Via-Poph
X-B3-SpanId
X-Via-Popn
X-Via-NSCOPI
X-Via-Popv
Request-ID
AMP-Access-Control-Allow-Source-Origin
X-WA-Info
X-GG-Cache-Date
Cache-Tv-Group
SID
Server-ID
My-App
Fastcgi-Cache-TTL
Env
X-Edge-Pop
X-Akamai-Transformed
X-Servedbyhost
X-B3-Spanid
X-Req
X-Session-Fingerprint
X-Wa
X-Lambda-Id
X-Cs
X-Newrelic-App-Data
Cache-Hits
X-Vc
X-Pod-Name
X-Generated-In
X-CSRF-TOKEN
X-Origin-Expires
GeoIp-Country-Code
X-Rebelmouse-Cache-Control
Hostname
X-Rebelmouse-Surrogate-Control
X-Release
X-Fpc
X-Fastly-Cache
X-NGINX-Cache
True-Client-Country-4JS
True-Client-IP
X-PX
X-DC
X-EC-Lua
X-Zone
X-ID
CacheControlHeader
X-LB-ID
X-VCL-Version
X-Op-Id-All
X-MCACHE
X-Xrds-Location
X-NWS-UUID-VERIFY
X-MSEdge-Flight
X-MSEdge-Features
X-TX-ID
X-Ig-Push-State
X-Cache-Date
X-Buckets
X-Webkit-CSP-Report-Only
X-TH-Server
X-GeoIP-Region-Code
X-GeoIP-Country-Code
X-NC
X-Conf
X-CS
X-Endurance-Cache-Level
X-Microcachable
X-CACHE-KEY
X-Accel-Expires-Debug
Resin-Trace
X-Date
CDN
X-TRACE-ID
X-RAMCache
X-HS-Status
WWW-Authenticate
X-Dmc
X-Old-Content-Length
X-Srv
X-RateLimit-Reset
Fastly-Drupal-Html
Path
Tcn
Powered-By
X-Vcl-Version
Magicmarker
X-Wikidot-Backend
X-Wikidot-Static-Cache
X-Varnish-Beresp-TTL
X-Check-Cacheable
X-Be
X-Vercel-Cache
X-Location
X-Webstats-RespID
X-Alfa-Service
Section-Io-Origin-Time-Seconds
X-Vercel-Id
Section-Origin-Responded
Section-Io-Origin-Status
X-Akamai-Pragma-Client-IP
True-Client-Ip
Section-Io-Id
X-API-Version
X-Cache-Ttl
X-LiteSpeed-Cache-Control
Yjs-Id
X-Varnish-Authentication
X-CLOUD-TRACE-CONTEXT
X-Contensis-Viewer-Groups
X-Cache-ASPX
X-Lb-Id
X-Director
GeoIP-Country-Code
X-FPC
Proxy-Connection
X-Datacenter
X-Micro-Cache
Pramga
X-Hyper-Cache
X-DataCenter
X-M-Log
X-Mly-Id
Cdn
X-CF-Lambda-Version
X-WA
FSS-Cache
X-Geo
X-CF-Lambda-Fn
X-M-Reqid
X-Via-CDN
X-Response-By
X-ServedByHost
X-App
Tracecode
ENV
Server-Id
User-Agent
X-Test
X-HA-Backend
Lb
X-Qnm-Cache
X-Air-Hostname
X-Cdn-Forward
X-Air-Source
YJS-ID
X-Dw-Trace-Id
X-Air-Trace-Id
X-Edge-POP
M-TraceId
X-Cache-Backend
X-Via-PopV
Uri
X-Client-Ip
HIT
X-Via-PopN
X-Cache-Expires
N-Cache
C-Via
X-Akamai-ERRuleID
X-Akamai-ERPolicy
X-Via-PopH
X-Server-IP
X-Air-Pt
X-AIR-PT
Sm-Log-Id
X-Service-Response-Time
X-Cc-Via
Location
Locid
X-Platform-Processor
Swift-Performance
X-We-Are-Hiring
X-Platform-Router
X-Platform-Cluster
X-Platform
X-Instance-Name
Srvid
X-TT-LOGID
X-From
X-Traceid
X-FL-EDGE
X-Li-Fabric
X-LiteSpeed-Tag
X-TrackingId
X-LI-UUID
X-Li-Pop
X-LI-Proto
Dnion-Transfer-Encoding
Geoip-Latitude
Esi-Enabled
X-UA
X-RPM
X-DI
X-RPS
X-DW
X-DSS
X-Info
CountryCode
CF-Cached-On
X-RSL
XServer
Fastcgi-X-Cache-Version
X-PERF
X-PAYTM-SRV-ID
X-DB
NtCoent-Length
Nginx-CQVIP
Hit
X-Fastly-Backend-Reqs
XM
On-Server
X-ApacheServer
Ohc-File-Size
X-Frame-Option
X-Request-Url
PICS-Label
X-Wp-Cf-Super-Cache
X-Wp-Cf-Super-Cache-Cache-Control
X-CF-Powered-By
Vha6-Origin
X-CUA
X-B3-ParentSpanId
X-Cdn-Request-ID
X-Fastly-Cache-Hits
Wpo-Cache-Status
X-HostName
X-Conten-Type-Options
X-Cache-Proxy
PFcat
Wpo-Cache-Message
X-HN
X-Lb-Nocache
X-VarnishDD-TTL
X-Ips-Loggedin
Warning
X-Cache-Ngx
X-Litespeed-Cache-Control
Wp-Super-Cache
X-Edge-Origin-Shield-Region
X-Edge-Origin-Shield-Bytes
X-Matched-Rule
X-Matome-Cached
X-MTS-Cache
X-Loadbalancer
X-N-OperationId
X-LbNode
X-Ittl
X-Kebab
X-Kebabable
X-Keep
X-Nerd
X-Newegg-Flow
X-Odoo-Frontend
X-Nyt-Data-Last-Modified
X-Okws-Version
X-Onedio-Env
X-Origin-Ops
X-NXG
X-Ntj-Investigation-Id
X-Newegg-Index
X-NFL-Dma
X-NFL-Geo
X-NS-Authorization
X-Is-SSL
X-IBD-Cache
X-DT-Node
X-Edge-IP
X-Eventloop-Lag
X-F-Status
X-Doge
X-Ee-Generated-By
X-Ee-Origin
X-Ee-Request-Id
X-Eid
X-ETag
X-OVcl
X-Farm
X-Fastly-Is-Edge
X-GoCache-CacheStatus
X-Group
X-Header-Sub
X-Ee-Request-Date
X-Developed-By
X-Global-Transaction-ID
X-Fstrz
X-Full-Ttl
X-GG-Cache-Status
X-Git-Commit
X-IBD-SID
X-Timestamp
X-Utime
X-User-Auth
X-V2-Infrastructure
X-Vary-Devices
X-Ver
X-Upstream-State
X-U-Cache
X-Toujours-Debout-Branch
X-Test-Nginx-Ingress
X-Toujours-Debout-Location
X-Tried-To-Kebabify
X-True-Client-Ip
X-Wag-Acs
X-Waitingroom
XV-H
XV-Cache
X-Delivery
Timeexpire
X-B3-Parentspanid
X-YSpaceId
X-Xms-Page-Cache-Actions
X-Web-Hosting
X-WP-Bypass
X-Fastly-Country-Code
X-WSR2
X-Svr-Proxy
X-SVR-IIS
X-Redis
X-Reboot
X-Render-Method
X-Render-Time
X-Request-Origin
X-R-Cache
X-Pver
X-PageType
X-Paywall
X-PG-ACCESS
X-PGF-Deflate
X-Route
X-Route-Akamai
X-SMP-JWT
X-Slack-Shared-Secret-Outcome
X-Square
X-SSLProxy
X-Stack-Name
X-Site
X-Sh
X-Ruby
X-Save-Cache
X-Server-L
X-ServiceName
X-OVcl-Cache
Deeplink
Nikkei-App-Version
NB-ESI
NLCacheNote
Npm-Cost
Npm-Remaining
Joe-X
Is-Https
Ec-Policy-Id
CMS-200
H1
HServer
HTTPProtocol
Ns
Ns-Ua
Request-Uuid
Region
Rt-Proxy-Cache
Scheme
Selected-Route
RawURL
Proxy-Cache
OK-Edge-Date
Ok-Cache-Status
Ok-Edge-Key
Origin-Site
Panzer-Cache-Control
Cluster-Host
Cf-Wrk
Fastcgi-Cache-Ttl
Req-ID
SRV
DynaTrace
WZWS-RAY
X-Vtex-Remote-Cache
X-Vtex-Processado-Em
X-Moov-Xdn-Version
X-Node-Id
X-Moov-T
X-Request-Start
GeoIP-Latitude
X-Mg-Cache
X-ElasticPress-Query
Cachekey
Cache-Stat
Cdn-Country-Code
Cf-Device-Type
Cf-Locale
Akamai-X-Url
X-Th-Server
X-IN-APIGATEWAY
X-Yottaa-OS
X-IN-APIGATEWAYSSL
Cneonction
X-Serial
Served
Service-Uuid
X-BeanStalkRole
X-Backside-Transport
X-BeanStalkStage
X-Cache-Cookie
X-Cache-IsMobileDevice
X-Backend-TTL
X-AspNetWebPages-Version
X-Ar-Stats
X-Apache-Server
X-Arena-Request-Id
X-ARRRG1
X-ASF-Cache
X-Cache-Length
X-Cache-NPR
X-Coindesk-Cache
X-Cms-Device
X-Colour
X-Container-Uri
X-Dcm-Pdtf
X-Cf-Node-Idx
X-CDN-Pop-IP
X-Cache-ReqUri
X-Cache-Reason
X-Cache-Response
X-CacheVersion
X-CDN-Pop
X-Amz-Meta-Cb-Modifiedtime
X-Akamai-Native
Ttl
Time-Cloud-Cache
TWC-AK-Req-ID
TWC-PATH-LOCALE
TWC-Subs
Technodrome
T-Request-Id
Shieldsquare-Response
SFRVia
SII
Store-Cloud-Cache
Sw
TWC-Unit
Uniqueid
X-AEO-Platform
X-Accor-Asset
X-Akamai-CacheKeyMod
X-Akamai-DeviceOS
X-Akamai-DeviceType
X-Accepted-Language
X-Accepted-Fulllang
Vttl
Userver
X-77-NZT
X-77-NZT-Ray
X-Accel-Version
X-Dehri-Date