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