Threat Level: green Handler on Duty: Rob VandenBrink

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
Strict-Transport-Security
Content-Length
X-Content-Type-Options
Link
Last-Modified
Cf-Request-Id
CF-Cache-Status
ETag
Expect-CT
Accept-Ranges
X-Powered-By
Pragma
CF-RAY
X-XSS-Protection
X-Cache
Via
Age
Content-Security-Policy
Report-To
NEL
Referrer-Policy
Access-Control-Allow-Origin
Content-Language
X-Amz-Cf-Pop
X-Amz-Cf-Id
Alt-Svc
X-Xss-Protection
P3P
X-Cache-Hits
X-UA-Compatible
X-Served-By
CF-Ray
X-Download-Options
X-Timer
Access-Control-Allow-Headers
X-Request-Id
Access-Control-Allow-Methods
X-Varnish
X-Adblock-Key
Access-Control-Allow-Credentials
X-Permitted-Cross-Domain-Policies
Content-Security-Policy-Report-Only
X-AspNet-Version
X-Runtime
X-Drupal-Cache
X-Generator
X-Cache-Status
X-Check
X-Cacheable
X-DNS-Prefetch-Control
X-Envoy-Upstream-Service-Time
X-FRAME-OPTIONS
X-Request-ID
Timing-Allow-Origin
X-Iinfo
X-Drupal-Dynamic-Cache
Feature-Policy
X-Dns-Prefetch-Control
X-Content-Security-Policy
Content-Encoding
X-XSS-PROTECTION
Access-Control-Expose-Headers
Upgrade
Status
X-CDN
Server-Timing
X-AspNetMvc-Version
Access-Control-Max-Age
X-Amz-Request-Id
Request-Context
X-Amz-Id-2
X-Turbo-Charged-By
X-Via
X-AH-Environment
X-Backend
X-Cache-Group
X-Robots-Tag
Cf-Edge-Cache
Host-Header
Keep-Alive
X-Hacker
X-Proxy-Cache
X-UA-Device
X-Server
X-Rq
X-Vhost
X-Server-Powered-By
Allow
X-Age
X-Varnish-Cache
X-Ws-Request-Id
X-Dispatcher
X-Amz-Version-Id
EagleId
P3p
Nel
Grace
Cf-Apo-Via
X-LiteSpeed-Cache
X-Styx-Req-Id
X-Pantheon-Styx-Hostname
X-Page-Speed
X-Device
Cf-Railgun
EagleEye-TraceId
X-Aws-Lambda-Call-Status
X-Swift-SaveTime
X-Swift-CacheTime
X-Pingback
Ali-Swift-Global-Savetime
X-Host
X-Node
X-WebKit-CSP
X-OneAgent-JS-Injection
Accept-CH
X-CST
X-Backend-Server
Surrogate-Control
X-Server-Id
X-Cache-Lookup
X-Nginx-Cache-Status
X-Readtime
Permissions-Policy
X-Akam-SW-Version
Request-Id
X-EdgeConnect-MidMile-RTT
X-Nginx-Upstream-Cache-Status
X-EdgeConnect-Origin-MEX-Latency
X-Application-Context
X-Content-Security-Policy-Report-Only
Accept-CH-Lifetime
X-Cloud-Trace-Context
X-Ua-Compatible
X-Trace
X-Response-Time
X-Edge
X-HW
Content-Location
X-Clacks-Overhead
X-Mod-Pagespeed
X-Litespeed-Cache
Xkey
X-Midtier
Rating
X-ESI
X-Amz-Server-Side-Encryption
X-Url
X-Ruxit-JS-Agent
X-ECACHE
Accept-Ch-Lifetime
X-Mcache
X-Oneagent-Js-Injection
X-Upstream
X-Ruxit-Js-Agent
X-Vcap-Request-Id
Accept-Ch
X-Country
X-D2id
Cache-Tag
X-MS-InvokeApp
X-GoogleNews-Bot
X-Kinja
X-Exp-Variant
X-PC
X-Vname
X-Cdn-Fetch
X-TtlSet
X-Element-Page-Cache
X-Exp-Id
Verso
X-Kinja-Build
X-Kinja-Revision
X-Kinja-Server
X-Use-Magma
X-Rack-Cache
Edge-Control
X-Powered-By-Plesk
RTSS
Fastly-Restarts
X-Ac
X-VARITI-CCR
Origin-Trial
X-Cache-TTL
X-WebKit-CSP-Report-Only
X-Navigation-Version
X-Abt-Application-Version
X-Ttl
X-Country-Code
X-Goog-Hash
Service-Worker-Allowed
X-Cached
X-Middleton-Display
X-Sol
Pagespeed
Display
X-Browser-Type
X-Amz-Rid
X-Content-Type
X-Varnish-TTL
X-GitHub-Request-Id
Cross-Origin-Opener-Policy
X-Dw-Request-Base-Id
SPRequestGuid
X-SharePointHealthScore
X-Mg-S
X-Server-Name
X-B3-TraceId
X-Amzn-Trace-Id
X-Powered-CMS
Response
X-Middleton-Response
Arr-Disable-Session-Affinity
X-Instrumentation
X-Server-Lifecycle-Phase
X-Erf-Bev-Bev
X-Erf-Bev-Bev-Is-Generated
X-Kraken-Loop-Name
AR-ATIME
AR-Request-ID
AR-PoweredBy
AR-SID
X-NF-Request-ID
SPRequestDuration
SPIisLatency
X-Cache-Key
X-Kinja-CCPA
X-Times
AR-CACHE
X-Version
X-SRCache-Store-Status
X-SRCache-Fetch-Status
X-HP-Webp
X-HP-Trace-Id
X-Jurisdiction
Pinterest-Version
X-Accel-Expires
Pinterest-Generated-By
X-Pinterest-Rid
X-T
Cache-Tags
X-ORACLE-DMS-RID
X-ORACLE-DMS-ECID
X-NWS-LOG-UUID
Front-End-Https
Cache-Status
X-Cnection
X-Fastcgi-Cache
X-MSEdge-Ref
Nginx-Cache
Edge-Cache-Tag
X-Hits
X-Fastly-Request-ID
X-B3-Traceid
X-Px
X-Webkit-CSP
X-Ser
X-RateLimit-Remaining
MRF-Tech
Mrf-Cache-Status
X-B3-TraceId-Primal
Public-Key-Pins
Payment
X-Recruiting
X-LLID
X-Request-Received
X-Request-Processing-Time
X-Frontend
Server-Node
X-Ua-Browser
X-Client-IP
X-Erf-Stays-Pdp-Viaduct-Migration-Web
X-Server-ID
X-Shield-Request-Id
X-DIS-Request-ID
X-RateLimit-Limit
TP-Cache
X-FastCGI-Cache
S
X-Goog-Metageneration
X-GUploader-UploadID
Access-Control-Request-Method
MicrosoftSharePointTeamServices
X-HS-Hub-Id
X-HS-Combine-CSS
X-HS-Cache-Config
X-HS-Content-Id
X-Amz-Apigw-Id
X-Amzn-RequestId
X-LB-Cache
X-Request-Handler-Origin-Region
X-Microsite
X-Content-Digest
X-Protected-By
TP-L2-Cache
Content-MD5
X-Distributor
Access-Control-Allow-Method
X-Ezoic-Cdn
X-FB-Debug
X-Page-Id
Realpath
Accept-Charset
X-Correlation-Id
Fastcgi-Cache
X-Cluster-Name
X-Rid
X-Forwarded-For
X-Geo-Country
X-Hostname
X-Webkit-Csp
X-TEC-API-ROOT
X-TEC-API-ORIGIN
X-TEC-API-VERSION
X-Aspnet-Version
X-Seen-By
X-B3-Sampled
X-Ua-Device
X-Ratelimit-Remaining
X-PressLabs-Stats
Cleartype
X-Envoy-Decorator-Operation
Referer-Policy
X-Client-Ip
X-Goog-Storage-Class
X-Mobile
X-Goog-Generation
X-Goog-Stored-Content-Encoding
X-Newrelic-App-Data
X-Goog-Stored-Content-Length
DC
TCN
Cross-Origin-Resource-Policy
X-Ratelimit-Limit
X-Content-Options
X-Debug-Info
X-Origin-Cache
X-Varnish-Backend
X-Daa-Tunnel
X-Azure-Ref
X-Logged-In
X-Varnish-Grace
X-Contextid
Count-Hit
X-XRDS-Location
X-Aspnetmvc-Version
X-Fb-Rlafr
X-Request-Guid
X-Grace
Surrogate-Key
X-Flags
X-Is-Crawler
X-Amz-Replication-Status
X-Git-Hash
X-Providence-Cookie
X-Revision
X-Route-Name
X-App-Environment
X-IPS-LoggedIn
X-Aspnet-Duration-Ms
X-App-Server
X-Origin-Server
X-Webkit-CSP-Report-Only
X-TT
X-Hosted-By
Frame-Options
X-Amz-Meta-S3cmd-Attrs
X-Forwarded-Proto
X-Kinsta-Cache
X-Wix-Request-Id
X-Edge-Location-Klb
Alternate-Protocol
X-Whom
WPO-Cache-Status
WPO-Cache-Message
Healthy
Charset
Retry-After
X-TTL
X-Akamai-Edgescape
Viewport
X-F-Cache
MS-Author-Via
X-Backend-Name
X-RateLimit-Reset
X-Magnolia-Registration
Section-Io-Cache
X-COUNTRY
X-B
Paypal-Debug-Id
SRV
X-Proxy-Cache-Info
X-App-Version
X-Az
X-AppVersion
X-Activity-Id
ServerID
Amp-Access-Control-Allow-Source-Origin
X-EdgeConnect-Cache-Status
X-Http-Reason
VIX-Pulpo-Node
VIX-Pulpo-Upstream-Status
SD-X-WS
X-Oracle-Dms-Ecid
X-ARC
X-Instance
X-N
Filterid
X-Response-Served-From
X-Language
X-Rule
X-Original-Request-Id
Host
Akamai-GRN
X-Cache-Rule
X-Edge-Location
X-Varnish-Age
X-Kong-Upstream-Latency
X-Cache-Grace
X-UUID
X-User-Agent
X-Akamai-Request-ID2
X-Id
X-Rocket-Nginx-Serving-Static
Front
X-Kong-Proxy-Latency
X-Status
Protected
X-Oracle-Dms-Rid
Fastly-SWR
From-Origin
Fastly-SIE
X-FW-Static
X-L-Path
X-Jobs
X-Page-View
X-Region
X-Unique-Id
X-Rendered-As
X-Is-Bot
X-FW-Version
X-Framework
X-Environment-Context
X-FW-Hash
X-FW-Serve
X-FW-Type
X-FW-Server
X-Cacheable-TTL
X-FW-Dynamic
Server-Name
X-Cache-Control
X-Www-Served-By
Access-Control-Request-Headers
X-Adobe-Loc
X-Cache-Time
X-Type
X-Varnish-Server
Country
X-Adobe-Content
X-Tumblr-Pixel-0
X-Datadog-Parent-Id
X-G
X-Time
X-Trace-Id
X-Tumblr-User
X-Tumblr-Pixel-1
X-Datadog-Trace-Id
X-ProcessESI
X-Load-Cache
X-Datadog-Sampling-Priority
X-Cache-Age
X-Tumblr-Pixel
X-RemovedCookies
X-Proxy
Refresh
X-DataDome
X-Yottaa-Metrics
X-Yottaa-Optimizations
X-Vcache
X-ECache
X-Datadog-Sampled
X-Mg-Request-UUID
X-CDN-Forward
X-Source
X-Amzn-Remapped-Content-Length
X-Debug-IsPreview
X-Debug-IsConnected
X-Drupal-Cache-Tags
Version
X-Erf-Web-Scheduler
Accept-Language
X-Signature
X-B-Cache
Xet-Cookie
Content-Disposition
X-ID
X-Generated-By
X-HTML-Minification-Powered-By
Countrycode
Backend
X-Xrds-Location
X-WP-CF-Super-Cache-Cache-Control
CF-IPCountry
X-WP-CF-Super-Cache
X-DynaTrace
X-DynaTrace-JS-Agent
X-Upgrade-Enabled
X-Mode
X-Servername
X-Httpd
Webserver
X-Nginx-Cache
X-Tt-Trace-Tag
X-Varnish-Ttl
Url
X-Tt-Trace-Host
Xserver
X-Content-Age
X-Fastly-Request-Id
GEO-INFO
X-NYM-Debug-Backend
X-Proto
X-GeoCode
Fastcgi-Useragent
X-Cache-Action
X-Container-Uri
Azure-Version
Filters
Load-Balancing
S-Rt
Onion-Location
Meta-Geo
Locale
Azure-SlotName
Azure-SiteName
X-Tb
X-GeoCountry
X-Git-Commit
X-JoinUs
X-Cache-Operation
X-Director
Azure-RegionName
Azure-InstanceId
X-Storage
X-Device-Type
X-LAGOON
X-ServerID
X-Varnish-Cache-Hits
X-URL
X-Rewrite-Enabled
X-Say-TTL
X-UPSTREAM-Address
X-Say-Cacheable
X-SaId
X-Urbn-Context-Path
X-Urbn-Site-Id
X-SayCDN-TTL
X-Template
X-XRDS-LOCATION
X-Labrador-Cache-Channel
X-Tt-Logid
X-MCACHE
X-RM-Cache-TTL
X-B3-SpanId
X-VC-Cache
X-Varnish-Hostname
X-Forwarded-Host
CDN-RequestId
Uber-Trace-Id
X-Soup
X-PHP-Host
X-Content-Powered-By
X-Cluster-Node
X-Sql-Duration-Ms
Web-Mar-Node
X-Detected-As
X-Adobe-Source
X-Cache-Server
X-Sql-Count
X-Sucuri-ID
X-Ms-Request-Id
X-Sucuri-Cache
X-Served-From
X-Logging-Id
OT-Force-Account-Verify
X-VCT
X-Ms-Version
X-Generation-Time
DB-Nickname
X-Routing-Service
TWC-Device-Class
TWC-GeoIP-LatLong
TWC-Locale-Group
TWC-Privacy
Webcakes-App-Version
TWC-GeoIP-Country
TWC-Connection-Speed
Webcakes-Region
Node
Property-Id
Mn-Server-Ip
X-LSADC-Cache
Webcakes-App-Name
X-FB-TRIP-ID
X-RCS-CacheZone
X-Lambda-Id
X-Drupal-Cache-Contexts
X-Extlb
X-Skip-Cache
X-R9-Blue-Green-Version
X-Origin-Hint
X-Zen-Fury
X-Debug
X-Proxied
X-Zipkin-Id
X-Timing-Wait
Liferay-Portal
X-Tumblr-Pixel-2
X-Fetched-On
X-Proxy-Build
X-Uri
X-Format
Selected-Fe
X-Tumblr-Pixel-3
X-Tncms
X-Loop
Source
X-Endurance-Cache-Level
X-Rn-Rsrv
X-CCDN-Origin-Time
X-CCDN-CacheTTL
X-MP-GENERATED-AT
X-Hcs-Proxy-Type
X-Nf-Request-Id
X-Cache-Hit
X-Origin-Date
X-Redis-Cache
X-Tec-Api-Origin
Cross-Origin-Window-Policy
Fastly-Drupal-HTML
X-Tec-Api-Root
X-Tec-Api-Version
X-Varnish-Hits
X-TimeS
X-Srv
X-Ratelimit-Reset
X-Ua
Section-Io-Origin-Status
Section-Origin-Responded
X-Pass-Why
X-Cache-Expired-At
Section-Io-Id
Section-Io-Origin-Time-Seconds
Content-Secure-Policy
Upgrade-Insecure-Requests
X-UA-Device-Type
X-Presslabs-Stats
X-Cache-TTL-Remaining
X-S
X-Real-IP
X-Akamai-Transformed
X-CACHE-AGE
X-Origin-TTL
X-Origin-CC
X-Node-Name
X-Pubstack
CDN-RequestCountryCode
CDN-RequestPullCode
X-Newrelic-Synthetics
CDN-PullZone
CDN-Cache
CDN-RequestPullSuccess
CDN-Uid
X-GEO
CDN-CachedAt
X-Server-W
CDN-EdgeStorageId
X-Via-JSL
X-Hl-Ver
Cache-Provider
X-RTag
Ms-Operation-Id
MS-CV
X-AIR-PT
X-CSRF-Token
X-Cache-Host
X-Handled-By
X-Parent-Response-Time
Magicmarker
Mail-Subject
Lang
L5d-Success-Class
X-Cache-Info
MD5-Digest
X-Cache-Bucket
X-BCube-Filmed-By
X-Bc-Bl
Meta-Geo-Continent
X-Bl-Debug
X-Cache-NE
X-B-Cookie
L
Fastly-Backend-Name
Fastly-GeoIP-CountryCode
DCR-Processing-Time-Ms
DCR-Decision-By
CPC-Cache
Fastly-SSL
Gannett-Cam-Experience-Id
HA-Ipaddr
X-Cache-Type
Ha-Gx-Prefs
Gh-Request-Id
X-Cdn-Diag
X-Application
X-App
X-A
Web-Mar-Region
Sslversion
Server-Host
X-A-Ccd
We-Hiring
Surrogated-Key
VNS-Cache
VNS-Age
True-Client-Country-4JS
W
T-Server
X-A-Dam
X-A-Dcw
N-Cache
NGB
X-Accel-Buffering
X-Accel-Expires-Debug
X-Aed
Ngx.Var.Host
Odigeo-Trace-Id
Rendered-Blocks
X-A-Dgt
X-A-Wwc
Redirect-Candidate
Vix-Hermes-Req-Id
X-Debug-Cache-Store
X-Request-Host
X-Reqid
X-RateLimit-Remaining-Second
X-Restarts
X-Rojux
X-Wix-Viewer-Type
X-S-Cookie
X-RateLimit-Limit-Second
X-Policy
X-Mvc-Supplant-Cachable
X-JWT-State
X-Nyt-Route
X-Optimistic-Header
X-Origin-Time
X-Orig-Expires
X-ScT
X-SD-PageType
X-Var-Ttl
X-Tx-Id
X-Vdms-Path
X-Vdms-Version
X-Vtex-Remote-Cache
X-VG-WebCache
X-We-Are-Hiring
X-Wikidot-Backend
X-Wikidot-Static-Cache
X-Shop-Environment
X-Slack-Backend
X-Slack-Shared-Secret-Outcome
X-Tenant
X-SRCache-Key
X-Is-Gdpr
X-IPLB-Request-ID
Xc-Version
X-Viewer-Country
X-Destination
X-Developer
X-Dispatcher-Number
X-Xfnlog-Site
X-Debug-Cache-Fetch
X-Date
X-CGP
X-CF-Lambda-Version
X-Cms-Context
X-Conf
X-D
X-Csrf-Jwt
X-Ec-Custom-Error
CPC-Age
X-Gdpr
X-Forwarded-Path
X-GeoIP-Country-Code
X-GeoIP-Region-Code
X-IPLB-Instance
X-Has-Esi
X-FC-Vary-Parameters
X-Fastly-Backend
X-Ec-GeoHdr
X-Ec-Fail
X-Epic-Correlation-Id
X-Worker
X-External-Request-Id
X-Eu-Site
X-CF-Lambda-Fn
X-CacheTTL
BehaviorPad-Version
Canary
X-Datadome
Cache-Hits
Cache-Name
Candidate-Md5Url
Apigw-Requestid
X-TIME
ServedBy
WP-Super-Cache
X-Mly-Id
X-ShardId
X-BBC-Edge-Cache-Status
X-Server-IP
X-Auto-Login
X-SVT-ORM-VERSION
X-Bip
X-Cache-Id
X-ShopId
X-Cache-Debug
X-BYPASS-REASON
X-WADP-Cache
X-Mid
X-VServer
X-ApacheServer
X-No-Session
X-Nitro-Cache
X-Node-Id
Thinkindot-Control
Thinkindot-CacheControl-Type
X-NGENIX-Cache
X-Geo-Header
X-Alternate-Cache-Key
X-Vmg-Version
X-Mvc-Supplant-OutputCached
X-Gzip
X-Test
X-App-Name
X-Loc
X-DPWN-IS-SECURE
X-Varnish-Remaining-TTL
X-Human
X-INCAP-ABP
X-DefElseHash
X-DefHash
X-Thanos
X-Sn-Servicetimems
X-Up
X-Sorting-Hat-PodId
X-Variation
X-Esi-Check
X-Varnish-CookieINHashed-On
X-Varnish-CookieHashed-On
X-Varnishpool
X-Hash
X-Clara-WADP
X-Clientip
X-Cdn-Origin
Thinkindot-CacheControl
X-ProxyCache-Status
X-Level-Front-Cache
X-Shopify-Stage
X-CMSURLCustom
X-Fmm-Version
X-VG-TLSProxy
X-Core-Value
X-Core-Mission
X-Irp-Debug
X-Thinkindot-L3
X-Generated-On
Memcached
Adler-Geo
AKAMAI
Machine
X-Request-Time
X-PERF
TDXMobile
X-Owner
Platform
Producers
X-SVT-ORM-RULES
Origin
X-PHP-Backend
X-Origin-Response-Time
Is-Eu
Hostname
Datacenter
X-Pool
X-ProxyCache-Key
Cf-Device-Type
Cmsid
Cmstype
Environment
Expect-Staple
X-Refresh
Host-ID
X-Platform
X-Storefront-Renderer-Rendered
X-Qloud-Router
X-Sorting-Hat-ShopId
X-Org
X-PAYTM-SRV-ID
X-Old-Content-Length
Req-Svc-Chain
Origin-Agent-Cluster
Release
X-S-Maxage
User-Cache-Control
X-GeoIP
Sever-Int
Apple-News-Services-Host
X-Gen-Mode
X-Cdn-Srv
Server-Hostname
X-Cluster
X-Device-Os
Apple-News-Services-Parsed-Url
Esi-Enabled
X-Hnp-Log
Country-Code
X-Forwarded-Site
X-From
X-Scale
CDCHOST
X-Nginx-Cache-Key
Apple-News-Services-Handled
DSUID
X-Dispatcher-Server
Apple-News-Services-Request-Url
X-VWS-Id
NM-Fastcgi-Cache
Server-Ext
X-WA-Info
X-Block-Status
CloudFront-Viewer-Country
X-AWS-Id
X-Origin
X-Nananana
X-Akamai-Device-Characteristics
X-NodeID
X-LJ-Flow-ID
Origin-EX
Pics-Label
X-Cache-Enabled
Ssr
Origin-CC
X-Vcl-Version
X-TIM-N
Server-Info
X-LB-NoCache
X-Proxy-Cache-Status
Wxu-Next-Region
X-NCache
X-Section
X-Instance-Name
X-Access
Wxu-Next-Commit
Wxu-Next-Hostname
C-Via
X-Op-Id-All
X-API-Version
X-Github-Request-Id
X-Cache-Status-Check
AMP-Access-Control-Allow-Source-Origin
Time
X-CACHE-GROUP
Memory
X-Amz-Meta-Cb-Modifiedtime
X-Via-Fastly
Server-ID
X-Tb-Optimization-Total-Bytes-Saved
X-HA-Backend
NGX
X-Micro-Cache
X-Wp-Cf-Super-Cache-Active
X-Cs
X-Internal-Host
X-Air-Hostname
X-Air-Trace-Id
X-Air-Source
X-Azure-Ref-OriginShield
X-Dc
X-Platform-Router
X-Platform-Processor
X-B3-Spanid
X-Platform-Cluster
X-AB
GeoIP-Latitude
X-Vgn-Hpd-Reason
X-Webkit-Csp-Report-Only
X-ZONE
X-Varnish-Beresp-Grace
X-DC
X-Web-Node
X-Varnish-Beresp-Ttl
X-Origin-Expires
X-Microcachable
X-FTR-Request-ID
Cache-Host
X-Geo-Region
Location
X-Correlation-ID
X-Buckets
X-Zone
X-B3-Parentspanid
X-DataCenter
X-SIPLIST1
X-Fpc
XM
IsBot
X-Pod-Name
X-Accel-Version
PFcat
X-VarnishDD-TTL
X-Backend-Instance
X-HN
X-TraceId
X-WP-CF-Super-Cache-Active
Cdn-Requestid
X-Info
Resin-Trace
Uri
User-Agent
X-Ad-Defer-Variation
X-TA-CDN-Provider
X-LiteSpeed-Cache-Control
X-Via-CDN
X-Via-Edge
Locid
X-Site-Version
X-FL-EDGE
CF-Ctrl
Edge-Copy-Time
YJS-ID
X-FL-QIT-DEBUG
X-Tcp-Rtt
A
X-Is-Desktop
X-Is-Mobile
Sid
Srvid
X-Is-Supported-Browser
X-Browser-Name
X-Via-SSL
X-Is-Tablet
X-Cached-By
X-Locale
True-Client-Ip
X-NGINX-Cache
X-Nitro-Rev
X-Nitro-Cache-From
GeoIp-Country-Code
X-Moov-Xdn-Version
X-Moov-T
X-FireWall-Port
X-ATG-Version
X-Cache-ASPX
X-Contensis-Viewer-Groups
GeoIP-Country-Code
SID
X-VCache
X-CS
X-Varnish-Authentication
XServer
Epwk-X-Cache
X-Hyper-Cache
Cache-Key
Cdn
X-NewRelic-App-Data
X-Cache-Ttl
X-CSRF-TOKEN
True-Client-IP
X-MSEdge-Features
X-MSEdge-Flight
X-Geo
X-Frame-Option
X-Upstream-Ct
X-Upstream-Ht
X-SRV
X-Webstats-RespID
X-TRACE-ID
X-Service
State
X-FPC
NtCoent-Length
X-Datacenter
Fastly-Drupal-Html
Path
X-Planisys-CDN-TTL
X-HS-Content-Campaign-Id
X-Planisys-CDN-Cache
X-Platform-Server
X-Planisys-CDN-Rules
Tcn
X-HostName
X-VC
X-Vgn-Hpd-Cached
X-Vgn-Hpd-Ssi
X-Vgn-Hpd-Variations-Key
WebServer
X-LiteSpeed-Tag
X-Release
X-Fastly-Cache
X-Api-Version
X-Origin-Cache-Key
X-UA
Cf-Ipcountry
X-APP-VERSION
CountryCode
Lb
X-Air-Pt
X-Vercel-Cache
LB
Cdncip
Cdn-Host
Cdn-Request-Time
X-Edge-Server
X-Amz-Meta-Opti
X-AK-Request-ID
X-Rocket-Build-Number
Cdnsip
X-Vercel-Id
X-Pad
X-Generated-In
X-Sigma
X-Cache-Remote
X-Sigma-Backend
X-Esi
X-FTR-Cache-Status
X-FTR-Expires
X-FTR-Backend-Server
X-FTR-Backend
X-Country-Code-Real
X-FTR-Balancer
X-Traceid
M-TraceId
X-Provided-By
X-HS-Status
X-NMSegId
Cache
X-Wp-Cf-Super-Cache
X-Branch-Name
WZWS-RAY
Req-ID
X-Wp-Cf-Super-Cache-Cache-Control
X-Rebelmouse-Cache-Control
X-Wp-Cf-Super-Cache-Cookies-Bypass
X-Rebelmouse-Surrogate-Control
X-Cdn-Request-ID
X-Scheme
X-GoCache-CacheStatus
X-Gamma-Serve
X-Akamai-Pragma-Client-IP
Yak-Timeinfo
X-Proxy-CacheRZ
X-Ad-Load-Variation
X-GeoIP-City
Proxy-Connection
Cluster
XkeyRZ
X-CACHE-KEY
CDN
X-RN-RSRV
X-WP-CF-Super-Cache-Cookies-Bypass
Content-Style-Type
X-Request-Start
X-Scope-Id
Srv
Geoip-Latitude
X-M-Reqid
X-M-Log
Pramga
Content-Script-Type
X-Vc
X-Cdn-Cache-Status
X-NWS-UUID-VERIFY
X-Cdn-Forward
X-Lb-Cache
X-Qnm-Cache
X-Tim-N
Ohc-File-Size
CF-Cached-On
Server-Id
Ngx
X-VCL-Version
Env
X-Ha-Backend
X-Shield-Cache-Expires
X-Varnish-Beresp-Status
X-TT-LOGID
Serverid
X-EC-Lua
Edge-Cache
X-Request-URI
Kp-EeAlive
X-Cache-Date
X-Edge-POP
X-Dw-Trace-Id
X-Acquia-Purge-Tags
PICS-Label
X-Via-Ucdn
X-Acquia-Application-UUID
X-Acquia-Site
X-Acquia-Application-Trace
X-Lb-Nocache
Yjs-Id
X-ElasticPress-Query
X-Litespeed-Cache-Control
X-MiniProfiler-Ids
X-Cached-Since
X-CF-Cache-Header-Vary
X-TH-Server
X-Udemy-Cache-App-Namespace
X-User
X-Serial
X-Render-Time
X-Check-Cacheable
X-CUA
X-CF-Cache-Header-Cache-Control
X-Mobile-URL
X-Miniprofiler-Ids
Inserted-Into-Cache-At
Vha6-Origin
CACHE-MISS-TO-ORIGIN
X-Iauth-Set-Uid
X-Fastly-Cache-Hits
Cneonction
X-Location
X-RAMCache
X-Edge-Pop
Cache-Tv-Group
X-Snapshot-Date
Log-Origin