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