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