Threat Level: green Handler on Duty: Russ McRee

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
Last-Modified
CF-RAY
Cf-Request-Id
CF-Cache-Status
Accept-Ranges
Link
ETag
Pragma
Expect-CT
X-Powered-By
X-XSS-Protection
Via
Age
X-Cache
Content-Security-Policy
Access-Control-Allow-Origin
Content-Language
Referrer-Policy
X-Amz-Cf-Pop
X-Amz-Cf-Id
X-Cache-Hits
P3P
Alt-Svc
X-UA-Compatible
X-Served-By
X-Xss-Protection
X-Timer
X-Download-Options
Access-Control-Allow-Headers
Access-Control-Allow-Methods
X-Varnish
X-Request-Id
Access-Control-Allow-Credentials
X-AspNet-Version
X-Adblock-Key
X-Runtime
X-Permitted-Cross-Domain-Policies
Content-Security-Policy-Report-Only
X-Drupal-Cache
X-Check
X-Request-ID
X-Cache-Status
X-Generator
X-Cacheable
X-DNS-Prefetch-Control
Timing-Allow-Origin
P3p
X-Content-Security-Policy
X-Iinfo
Status
X-Ua-Compatible
Feature-Policy
Content-Encoding
X-AspNetMvc-Version
X-CDN
X-Envoy-Upstream-Service-Time
Access-Control-Expose-Headers
Upgrade
Access-Control-Max-Age
X-Drupal-Dynamic-Cache
X-Via
X-Dns-Prefetch-Control
Keep-Alive
X-Ws-Request-Id
Request-Context
Server-Timing
X-Robots-Tag
X-AH-Environment
X-Hacker
X-Server
X-Age
X-Turbo-Charged-By
X-Proxy-Cache
X-Cache-Group
X-Server-Powered-By
X-Backend
X-Amz-Request-Id
Host-Header
X-Amz-Id-2
EagleId
X-Nginx-Cache-Status
Report-To
X-LiteSpeed-Cache
X-Rq
X-Varnish-Cache
Grace
X-Page-Speed
X-UA-Device
X-Pingback
X-Swift-SaveTime
X-Swift-CacheTime
EagleEye-TraceId
Ali-Swift-Global-Savetime
X-Device
X-Vhost
X-Styx-Req-Id
X-Pantheon-Styx-Hostname
X-Amz-Version-Id
NEL
X-Dispatcher
Cf-Railgun
X-Host
X-OneAgent-JS-Injection
X-WebKit-CSP
X-Cache-Spec
X-Server-Id
X-CST
X-Node
X-EdgeConnect-MidMile-RTT
X-EdgeConnect-Origin-MEX-Latency
X-Backend-Server
Allow
Request-Id
Surrogate-Control
X-Readtime
Accept-CH
X-Akam-SW-Version
X-Response-Time
Accept-Ch-Lifetime
Xkey
X-HW
X-Language
X-Application-Context
X-Template
X-Country
X-Ruxit-JS-Agent
X-Ac
Content-Location
X-Cache-Lookup
X-Cloud-Trace-Context
X-Webkit-CSP
Rating
MS-Author-Via
X-Url
Edge-Control
X-PC
X-TtlSet
X-Vname
X-Mod-Pagespeed
X-Clacks-Overhead
X-Varnish-TTL
X-B3-TraceId
X-Trace
Fastly-Restarts
X-Content-Type
X-MS-InvokeApp
X-Rack-Cache
X-Origin-Cache
X-ESI
X-Buckets
X-GitHub-Request-Id
Accept-Ch
X-Cnection
X-Country-Code
X-Goog-Hash
X-D2id
Verso
X-VARITI-CCR
X-Exp-Id
X-Cdn-Fetch
X-GoogleNews-Bot
X-Exp-Variant
X-Kinja-Server
X-Kinja-Revision
X-Kinja-Build
X-Kinja
X-Use-Magma
Arr-Disable-Session-Affinity
X-FastCGI-Cache
X-ORACLE-DMS-ECID
X-Vcap-Request-Id
Cache-Tag
Service-Worker-Allowed
X-Cached
X-Server-Name
X-Abt-Application-Version
X-Client-IP
X-Amz-Rid
X-Server-ID
Accept-CH-Lifetime
X-Navigation-Version
X-Px
RTSS
X-Powered-By-Plesk
X-Cache-TTL
Public-Key-Pins
X-SRCache-Store-Status
X-SRCache-Fetch-Status
Access-Control-Request-Method
X-Element-Page-Cache
X-MSEdge-Ref
X-Fastly-Request-ID
X-Powered-CMS
X-Dw-Request-Base-Id
X-Upstream
X-NF-Request-ID
X-Version
X-TTL
X-Middleton-Display
X-Middleton-Response
Display
Response
Pagespeed
X-Sol
S
X-Kinsta-Cache
X-Edge-Location-Klb
X-Edge
X-LLID
X-Server-Lifecycle-Phase
X-Kraken-Routeconfig-Destination
X-Kraken-Loop-Name
Mrf-Cache-Status
MRF-Tech
X-Instrumentation
X-B3-TraceId-Primal
X-ECACHE
X-Ttl
X-Cache-Key
X-Accel-Expires
X-Oneagent-Js-Injection
Realpath
X-Jurisdiction
X-HP-Webp
X-Shield-Request-Id
X-Aspnetmvc-Version
X-Correlation-Id
Pinterest-Generated-By
X-Pinterest-Rid
Pinterest-Version
X-T
SPRequestGuid
X-SharePointHealthScore
X-DynaTrace
X-Mid
X-MCACHE
X-Litespeed-Cache
X-XRDS-Location
X-PressLabs-Stats
X-ORACLE-DMS-RID
SPRequestDuration
SPIisLatency
X-Content-Security-Policy-Report-Only
Edge-Cache-Tag
Fastcgi-Cache
X-Mg-S
X-Forwarded-Proto
X-Amz-Server-Side-Encryption
X-Content-Digest
Nginx-Cache
TP-Cache
TP-L2-Cache
X-Recruiting
Charset
Front-End-Https
X-Request-Processing-Time
X-Request-Received
TCN
X-Id
Alternate-Protocol
Filters
X-Ruxit-Js-Agent
Server-Node
X-Logged-In
X-Forwarded-For
X-Geo-Country
Content-MD5
X-Ezoic-Cdn
Fusion-Content-Source
Fusion-Source
Fusion-Deployment-Id
Fusion-Template-Id
Fusion-Content-Id
Fusion-Component-Id
X-Protected-By
Cache-Tags
X-ASPNET-VERSION
X-Hostname
X-Amzn-Trace-Id
X-Origin-Upstream-Status
X-Grace
X-NWS-LOG-UUID
X-Goog-Storage-Class
X-Goog-Stored-Content-Encoding
X-Goog-Stored-Content-Length
X-GUploader-UploadID
X-Goog-Generation
X-Goog-Metageneration
X-F-Cache
X-Www-Served-By
X-Debug-Info
Cleartype
X-Origin-Server
X-Amz-Replication-Status
X-Rid
X-HS-Content-Id
X-HS-Cache-Config
X-LB-Cache
X-HS-Hub-Id
Host
X-HS-Combine-CSS
X-AppVersion
X-Az
X-Activity-Id
X-Contextid
X-Daa-Tunnel
X-Ab
X-Release
Section-Io-Cache
X-Git-Hash
X-Erf-Bev-Bev
X-Erf-Bev-Bev-Is-Generated
X-Browser-Type
X-Page-Id
Server-Name
X-Ser
X-Frontend
X-VCache
MicrosoftSharePointTeamServices
X-RateLimit-Remaining
X-Cache-Age
X-Content-Options
X-Upgrade-Enabled
Accept-Charset
Access-Control-Allow-Method
X-Respond-Thread
X-Kong-Proxy-Latency
X-Kong-Upstream-Latency
X-Hits
X-Mobile-URL
ServerID
X-Source
X-DIS-Request-ID
X-Flags
X-Aspnet-Duration-Ms
X-Signature
X-Route-Name
X-Providence-Cookie
X-Is-Crawler
X-Request-Guid
X-B-Cache
X-CACHE-GROUP
X-Varnish-Age
X-WebKit-CSP-Report-Only
X-Cache-Action
Viewport
X-Whom
Healthy
X-FB-Debug
X-Varnish-Backend
Payment
X-TT
X-Varnish-Grace
Paypal-Debug-Id
X-Fastcgi-Cache
X-B3-Sampled
Node
X-App-Environment
X-AOL-HN
DynaTrace
Fastcgi-Useragent
X-Yandex-Sdch-Disable
X-Load-Cache
X-Mobile
Version
X-Seen-By
DC
X-N
X-Tt-Trace-Tag
X-Tt-Trace-Host
Filterid
X-Distributor
X-HTML-Minification-Powered-By
SRV
X-Type
X-User-Agent
Retry-After
X-Tec-Api-Root
X-Tec-Api-Version
X-Tec-Api-Origin
X-Cache-Control
Frame-Options
X-Ua-Device
MS-CV
X-Jobs
Refresh
X-Response-Served-From
X-XRDS-LOCATION
X-Cache-Expired-At
X-Original-Request-Id
X-UUID
X-FW-Static
X-FW-Serve
X-FW-Server
X-FW-Dynamic
X-FW-Type
X-FW-Hash
X-Adobe-Content
X-Adobe-Loc
X-Page-View
X-Proxy-Cache-Status
Amp-Access-Control-Allow-Source-Origin
NGB
X-Varnish-Server
X-Region
X-Real-IP
X-Instance
X-Debug-IsConnected
X-Debug-IsPreview
X-Tumblr-Pixel
X-RemovedCookies
X-Proxy
X-G
X-Cluster-Name
X-ProcessESI
X-Tumblr-Pixel-0
X-Cacheable-TTL
X-Tumblr-Pixel-1
X-Tumblr-User
Access-Control-Request-Headers
X-IPLB-Instance
VIX-Pulpo-Node
X-NGENIX-Cache
VIX-Pulpo-Upstream-Status
X-Vgn-Hpd-Reason
X-B
X-Content-Powered-By
X-Cache-Time
X-Node-Name
X-CDN-Forward
X-Azure-Ref
X-Framework
X-Device-Type
X-RTag
Ms-Operation-Id
X-IPS-LoggedIn
X-Zen-Fury
Uber-Trace-Id
X-HP-Trace-Id
X-Cache-Hit
X-Cache-Rule
X-Aws-Lambda-Call-Status
SD-X-WS
Cache-Status
Referer-Policy
X-Is-Bot
X-Rendered-As
Liferay-Portal
X-Wix-Request-Id
Countrycode
X-Ms-Request-Id
X-Ms-Version
X-Drupal-Cache-Tags
Section-Io-Id
X-Oracle-Dms-Rid
Section-Origin-Responded
Section-Io-Origin-Status
Section-Io-Origin-Time-Seconds
X-Time
X-Parallel-Accel
X-Mg-Request-UUID
Ar-Sid
AR-PoweredBy
AR-Request-ID
X-Microsite
X-Request-Handler-Origin-Region
AR-CACHE
AR-ATIME
X-Debug
X-EdgeConnect-Cache-Status
X-Accel-Buffering
S-Cnection
X-Revision
X-RateLimit-Limit
X-Environment-Context
Country
X-L-Path
X-App-Server
CF-IPCountry
X-Nginx-Cache
X-Yottaa-Metrics
X-Yottaa-Optimizations
Cache
X-Cache-Operation
Count-Hit
X-Drupal-Cache-Contexts
X-APP-VERSION
X-UPSTREAM-Address
Meta-Geo
X-TNCMS
X-Loop
X-TA-CDN-Provider
X-JoinUs
X-FW-Version
X-Endurance-Cache-Level
Surrogate-Key
X-GG-Cache-Date
X-RN-RSRV
X-SaId
X-ES-SERVER
X-SayCDN-TTL
X-App-Version
From-Origin
X-Say-TTL
X-Say-Cacheable
Akamai-GRN
X-Cache-Type
X-Adobe-Source
X-LAGOON
X-Cache-TTL-Remaining
X-Varnish-Beresp-Grace
X-Human
X-ShardId
X-ShopId
Azure-Version
X-NYM-Debug-Backend
Azure-SlotName
X-Xfnlog-Site
Azure-InstanceId
Country-Code
Protected
X-Sorting-Hat-PodId
Eomportal-Instance
X-Sql-Duration-Ms
X-Shopify-Stage
X-S-Maxage
X-Sql-Count
GEO-INFO
X-Storefront-Renderer-Rendered
X-Alternate-Cache-Key
X-Sorting-Hat-ShopId
X-Request-Time
Azure-SiteName
Azure-RegionName
Decoy-Debug-TTL
Cache-Name
Decoy-Debug-Status
ServedBy
X-AWS-Id
Decoy-Debug-Key
Cache-Tv-Group
Apigw-Requestid
X-Be
X-BYPASS-REASON
X-R9-Blue-Green-Version
X-ProxyCache-Status
X-RCS-CacheZone
X-PCL
X-Pubstack
X-ProxyCache-Key
X-Proto
X-OCL
Fastly-SSL
X-Status
X-Varnish-Hostname
X-Varnishpool
X-VWS-Id
X-PHP-Host
X-FireWall-Port
X-No-Session
X-Labrador-Cache-Channel
X-Hosted-By
X-Handled-By
X-Origin-Date
X-LJ-Flow-ID
TWC-GeoIP-Country
X-Uri
TWC-GeoIP-LatLong
X-Cache-Server
X-Proxy-Build
X-Access
Selected-Fe
X-Tumblr-Pixel-2
X-Timing-Wait
TWC-Connection-Speed
X-UA-Device-Type
TWC-Device-Class
X-Via-Fastly
X-Hyper-Cache
Webcakes-App-Name
TWC-Privacy
X-Format
X-Redis-Cache
Webcakes-App-Version
X-Section
X-Server-W
X-Web-Node
X-PHP-Backend
X-Akamai-Edgescape
X-Origin-Hint
Webcakes-Region
TWC-Locale-Group
Property-Id
Nel
X-ApacheServer
X-B3-SpanId
Mn-Server-Ip
X-PERF
X-Backend-Host
X-FB-TRIP-ID
X-Cluster-Node
X-Time-Microsecs
X-Backend-Name
X-Hl-Ver
X-Servername
OT-Force-Account-Verify
X-ServerID
X-ATG-Version
X-B3-Traceid
Cross-Origin-Opener-Policy
X-Tumblr-Pixel-3
X-Detected-As
X-TEC-API-VERSION
X-Azure-Ref-OriginShield
X-TEC-API-ROOT
X-TEC-API-ORIGIN
X-Cache-PHP
Web-Mar-Node
X-Trace-Id
Backend
X-Content-Age
Cross-Origin-Window-Policy
X-Generation-Time
X-Varnish-Cache-Hits
X-Cache-Host
X-Ua
X-Datadome
X-WA-Info
X-Varnish-Hits
X-TT-LOGID
Content-Secure-Policy
X-MP-GENERATED-AT
X-CSRF-Token
Xserver
Ec-Rule-Version
X-SRV
X-Via-JSL
X-CS
X-Soup
X-Akamai-Transformed
Source
X-Bc-Bl
X-Cdn
X-Cache-Enabled
X-Edge-Location
X-Ratelimit-Limit
X-Amzn-RequestId
X-Microcachable
X-Amz-Apigw-Id
X-Cache-Grace
X-Mode
X-Amzn-Remapped-Content-Length
X-Air-Source
X-Air-Trace-Id
X-Air-Hostname
X-Info
X-Ratelimit-Remaining
X-NWS-UUID-VERIFY
S-Rt
X-Rule
Upgrade-Insecure-Requests
Url
X-Varnish-Beresp-Ttl
X-Forwarded-Host
X-Origin-CC
X-Origin-TTL
X-Locale
X-Unique-Id
X-Cached-By
X-Varnish-Beresp-Status
X-Dc
X-GEO
X-Site-Version
Content-Disposition
X-Magnolia-Registration
X-Tb
X-Connection-Hash
MD5-Digest
X-Conf
M-TraceId
X-D
Host-ID
X-Debug-Cache
X-Zipkin-Id
CDN-RequestId
Meta-Geo-Continent
CDN-Uid
X-Vtex-Processado-Em
X-CF-Lambda-Fn
X-A
X-Cache-NE
X-Extlb
X-Vtex-Remote-Cache
X-Destination
Odigeo-Trace-Id
Path
X-CF-Lambda-Version
Mobile-Detection-Method
Fastly-SWR
X-From
X-External-Request-Id
BehaviorPad-Version
X-Ftr-Request-Id
X-Epic-Correlation-Id
DCR-Processing-Time-Ms
DCR-Decision-By
CDN-CachedAt
CDN-Cache
CDCHOST
X-Forwarded-Path
CDN-PullZone
Apple-News-Services-Request-Url
X-NU-AKA-ACS-Version
Fastly-SIE
CDN-RequestCountryCode
CDN-EdgeStorageId
Fastcgi-X-Cache-Version
A
Apple-News-Services-Parsed-Url
Apple-News-Services-Host
Apple-News-Services-Handled
Expiry
X-Developer
X-NAPM-TraceId
X-Rewrite-Enabled
X-ARC
X-Application
X-SRCache-Key
X-Rojux
X-B-Cookie
X-Request-URI
Surrogated-Key
X-Ratelimit-Reset
X-Rebelmouse-Surrogate-Control
X-Vdms-Version
T-Server
X-Routing-Service
X-S
X-A-Dgt
X-A-Wwc
X-A-Dcw
X-A-Dam
X-A-Ccd
X-Shop-Environment
X-Session-Fingerprint
X-AIR-PT
X-S-Cookie
X-ScT
X-Aicache-OS
X-Aed
State
X-Rebelmouse-Cache-Control
User-Cache-Control
X-Platform-Server
X-Processor
X-Tenant
X-PBS-Appsvrname
X-PAYTM-SRV-ID
X-Orig-Expires
Rendered-Blocks
X-VG-WebServer
Req-Svc-Chain
X-Cache-Bucket
X-Proxied
X-BCube-Filmed-By
X-VG-WebCache
X-BBC-Edge-Cache-Status
X-Storage
X-DataDome
X-Cache-NGX
X-EC-Lua
SID
Is-Eu
X-Fastly-Backend
UCS
Pics-Label
Cmstype
X-Accel-Expires-Debug
Platform
L
X-DPWN-IS-SECURE
X-Cms-Context
X-Cache-Debug
X-Envoy-Decorator-Operation
Fastly-Backend-Name
Fastly-Drupal-HTML
X-Date
X-Clientip
X-Backend-State
Origin
X-Core-Value
NGX
X-Cache-Info
Adler-Geo
X-SVT-ORM-RULES
X-Request-UUID
X-Proxy-Upstream
Cmsid
X-Loc
X-Has-Esi
X-VG-TLSProxy
X-Variation
X-TrackingId
X-LI-UUID
X-Origin-Expires
X-Men
X-VServer
Cache-Host
Cache-Key
X-Li-Fabric
X-SVT-ORM-VERSION
X-Li-Pop
X-Service
X-Is-Gdpr
X-JWT-State
X-Fastly-Cache
AMP-Access-Control-Allow-Source-Origin
X-Cache-Id
X-Nginx-Cache-Key
X-Via-NSCOPI
X-Old-Content-Length
X-Origin
X-Branch-Name
X-Thanos
X-RateLimit-Remaining-Second
X-Slack-Backend
X-Sigma
X-Served-From
X-VarnishDD-TTL
X-Varnish-Remaining-TTL
X-SIPLIST1
X-Varnish-CookieINHashed-On
X-VC-Cache
X-Scheme
X-RateLimit-Limit-Second
X-Bip
X-Viewer-Country
X-Req
X-Rocket-Build-Number
X-Request-Host
X-Block-Status
X-Location
X-GoCache-CacheStatus
X-Geo-Header
X-Var-Ttl
X-Gzip
X-Developers
X-Device-Os
X-Generated-On
X-Generated-By
X-Forwarded-Site
X-Fmm-Version
X-Esi-Check
X-Gamma-Serve
X-Sigma-Backend
X-Gen-Mode
X-Hash
X-DefHash
X-Varnish-CookieHashed-On
X-Cluster
X-Clara-WADP
X-WADP-Cache
X-Micro-Cache
X-Ckpd-Fst-Backend
X-Thinkindot-L3
X-Wikidot-Backend
X-HN
X-DefElseHash
X-Hnp-Log
X-Level-Front-Cache
X-Wikidot-Static-Cache
X-Worker
X-Cache-Tags
PB-RID
PB-PID
Locid
DSUID
Server-Ext
X-Ua-Browser
Server-Hostname
Server-Host
Location
IsBot
Esi-Enabled
CPC-Age
CPC-Cache
Fastcgi-Cache-TTL
Cf-Device-Type
Arc-Version
C-Via
Sever-Int
PFcat
VNS-Age
Vix-Hermes-Req-Id
Thinkindot-Control
True-Client-Country-4JS
VNS-Cache
Thinkindot-CacheControl-Type
X-Tx-Id
TDXMobile
Thinkindot-CacheControl
X-Content
X-Platform
X-Amz-Meta-S3cmd-Attrs
Server-Info
X-DC
XServer
CacheControlHeader
Arc-Country
X-Planisys-CDN-Rules
X-Fetched-On
Wxu-Next-Hostname
X-Planisys-CDN-Cache
X-Owner
X-Skip-Cache
X-Policy
X-FC-Vary-Parameters
X-Generated-In
X-Irp-Debug
X-Vdms-Path
X-Auto-Login
X-M-Reqid
X-M-Log
X-Goog-Meta-Goog-Reserved-File-Mtime
X-NCache
X-GeoIP
X-Sucuri-ID
X-Planisys-CDN-TTL
X-GeoIP-City
X-Mvc-Supplant-Cachable
AKAMAI
Release
NM-Fastcgi-Cache
L5d-Success-Class
Svr
X-Eu-Site
X-CGP
Pagetype
Memcached
Mail-Subject
HA-Ipaddr
X-Csrf-Jwt
V-Age
We-Hiring
Wxu-Next-Commit
Ha-Gx-Prefs
Gh-Request-Id
Wxu-Next-Region
Webserver
DataCenter
X-Qnm-Cache
NtCoent-Length
X-Qloud-Router
X-HS-Content-Campaign-Id
X-V-Cache
Kp-EeAlive
X-Unique-ID
X-Servedbyhost
MIME-Version
X-Rocket-Nginx-Serving-Static
X-Platform-Router
X-Platform-Processor
X-LSADC-Cache
X-Platform-Cluster
X-Mvc-Supplant-OutputCached
Cache-Hits
X-Render-Time
X-User
X-Via-Poph
X-Via-Popn
X-Via-Popv
X-SD-PageType
X-Zone
X-Srv
X-Cache-Remote
Who
X-Cache-Ttl
X-PF-Uncompressing
Environment
X-NC
X-Cache-Var
X-Cache-Var-Map
X-ID
X-Wa
X-Minions-Version
X-Origin-Time
X-Datadog-Parent-Id
X-Datadog-Sampling-Priority
X-Datadog-Trace-Id
X-Nyt-Route
X-API-Version
X-NodeID
X-Varnish-Url
X-Vc
X-Gdpr
X-PJAX-URL
X-Traceid
X-BBC-Origin-Response-Status
WebServer
X-Varnish-Ttl
X-Refresh
X-Via-Ucdn
X-App
Server-ID
Cluster
Memory
X-Cache-Config
Time
X-Pod-Name
Candidate-Md5Url
X-Server-IP
X-VCL-Version
X-TIME
X-Internal-Host
X-LB-ID
Powered-By-ChinaCache
My-App
X-Webkit-Csp
X-ZONE
X-CACHE-KEY
X-Webkit-CSP-Report-Only
X-Pass-Why
X-Newrelic-Synthetics
Geoip-Latitude
HostName
X-Esi
X-LI-Proto
X-NewRelic-App-Data
Datacenter
GeoIp-Country-Code
X-CLOUD-TRACE-CONTEXT
Web-Mar-Region
N-Cache
Onion-Location
X-Edge-Pop
X-ElasticPress-Query
X-TX-ID
X-OVcl-Cache
Geo-Info
Hostname
X-OVcl
X-Tb-Optimization-Total-Bytes-Saved
Resin-Trace
X-VHOST
X-TraceId
Servername
X-Akamai-Pragma-Client-IP
Cf-Bgj
Tcn
X-Backend-TTL
Ohc-File-Size
X-Dynatrace
X-Origin-Response-Time
X-CACHE-AGE
X-HITS
X-Varnish-Cacheable
Magicmarker
X-Tt-Logid
CDN
WWW-Authenticate
X-EIG-Tracking-Id
X-Geo
LB
X-Dispatcher-Server
X-Fpc
X-Method
X-Varnish-Beresp-TTL
X-Li-Proto
X-NODE
X-AB
X-Correlation-ID
GeoIP-Country-Code
X-Tid
X-Wix-Viewer-Type
X-MSEdge-Features
Proxy-Connection
X-MSEdge-Flight
X-TIM-N
X-Dynatrace-Js-Agent
Redirect-Candidate
X-HostName
DB-Nickname
Cdn
Tracecode
X-Fastly-Request-Id
GeoIP-Latitude
X-Cs
X-Up
X-IP
Ssr
Cf-Ipcountry
Sid
Pramga
X-HS-Status
X-Cache-Date
X-Fastly-Backend-Reqs
X-NGINX-Cache
X-Vcl-Version
X-Request-Start
Is-Us
X-CSRF-TOKEN
CF-Cached-On
X-Sn-Servicetimems
X-APP
Server-Id
X-Amz-Meta-Cb-Modifiedtime
X-COUNTRY
X-Node-Id
X-Cdn-Origin
X-MG-S
Lb
X-ND-Cache
X-ServerName
W
X-Lb-Id
X-WA
X-Trv-Group
X-Provided-By
Cteonnt-Length
X-Core-Mission
X-Webkit-Csp-Report-Only
X-UnsetCookies
X-FORWARDED-FOR
X-Nc
CloudFront-Viewer-Country
X-VC
X-Via-CDN
X-Reqid
X-Check-Cacheable
X-Cache-Expires
URI
Env
X-Via-PopH
X-Pjax-Url
X-DynaTrace-JS-Agent
X-Via-PopN
X-Via-PopV
WZWS-RAY
Ohc-Cache-HIT
WP-Super-Cache
X-SERVER-NAME
X-Cache-Backend
X-Region-Sid
Shield-Pop
X-IN-APIGATEWAYSSL
X-IN-APIGATEWAY
X-Pf-Uncompressing
X-CCDN-Origin-Time
CountryCode
X-Cache-Status-Check
X-CCDN-CacheTTL
X-Hcs-Proxy-Type
X-ServedByHost
Mime-Version
X-SN
X-Sucuri-Cache
X-Pad
VivaBuild
X-Acquia-Application-Trace
Server-Ttl
Rt-Fastcgi-Cache
X-Acquia-Site
X-Acquia-Purge-Tags
X-Acquia-Application-UUID
Viewtype
CACHE
X-Fastly-Cache-Hits
X-Edge-POP
X-Cache-ASPX
X-Moov-Xdn-Version
X-Varnish-Authentication
X-RAMCache
X-CUA
Xc-Version
X-Moov-T
X-LiteSpeed-Cache-Control
X-Contensis-Viewer-Groups
X-Cdn-Request-ID
X-Ig-Push-State
EpKe-Alive
User-Agent
X-Webstats-RespID
Xet-Cookie
Vha6-Origin
X-Action
Ohc-Response-Time
X-Dw-Trace-Id
X-Yottaa-OS
X-Swift-Error
X-SB
X-DB
X-DI
X-RSL
X-StackifyID
X-RPM
X-RPS
X-DSS
X-DW
X-Cdn-Forward
X-ElasticPress-Search
X-TH-Server
X-Amz-Meta-Opti
HIT
FSS-Cache
ServerName
Content-Style-Type
Content-Script-Type
Req-ID
Machine
X-CF-Powered-By
X-MiniProfiler-Ids