Threat Level: green Handler on Duty: Rick Wanner

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-Request-Id
Link
CF-Cache-Status
Accept-Ranges
CF-RAY
ETag
Expect-CT
Pragma
X-Powered-By
X-XSS-Protection
Via
X-Cache
Age
Content-Security-Policy
Access-Control-Allow-Origin
Content-Language
Referrer-Policy
X-Amz-Cf-Pop
X-Amz-Cf-Id
X-UA-Compatible
X-Cache-Hits
Alt-Svc
P3P
X-Served-By
X-Xss-Protection
X-Download-Options
X-Timer
Access-Control-Allow-Headers
X-Varnish
Access-Control-Allow-Methods
X-Request-Id
Access-Control-Allow-Credentials
X-AspNet-Version
X-Runtime
X-Adblock-Key
X-Permitted-Cross-Domain-Policies
Content-Security-Policy-Report-Only
X-Drupal-Cache
X-DNS-Prefetch-Control
X-Check
X-Cache-Status
X-Generator
X-Cacheable
Timing-Allow-Origin
X-Request-ID
X-Content-Security-Policy
P3p
X-Iinfo
Status
Feature-Policy
X-Envoy-Upstream-Service-Time
Content-Encoding
Access-Control-Expose-Headers
X-Drupal-Dynamic-Cache
X-CDN
X-AspNetMvc-Version
Upgrade
X-Via
CF-Ray
Access-Control-Max-Age
X-Ws-Request-Id
Server-Timing
EagleId
Keep-Alive
X-Cache-Group
X-Turbo-Charged-By
Request-Context
X-Age
X-Proxy-Cache
X-Server-Powered-By
X-AH-Environment
X-UA-Device
X-Backend
X-Hacker
X-Robots-Tag
Report-To
X-Amz-Request-Id
Host-Header
X-LiteSpeed-Cache
X-Server
X-Amz-Id-2
Grace
X-Rq
X-Nginx-Cache-Status
X-Varnish-Cache
X-Swift-SaveTime
X-Swift-CacheTime
Ali-Swift-Global-Savetime
X-WebKit-CSP
X-Dns-Prefetch-Control
X-Page-Speed
X-Vhost
X-OneAgent-JS-Injection
EagleEye-TraceId
X-Amz-Version-Id
X-Device
X-Pingback
X-Dispatcher
X-Styx-Req-Id
X-Pantheon-Styx-Hostname
X-Cache-Spec
NEL
X-Server-Id
X-Host
X-Backend-Server
X-Node
Cf-Railgun
Accept-CH
X-Readtime
X-Akam-SW-Version
Surrogate-Control
Request-Id
X-Response-Time
X-HW
X-Language
Xkey
X-EdgeConnect-Origin-MEX-Latency
X-EdgeConnect-MidMile-RTT
X-Ruxit-JS-Agent
X-Application-Context
Content-Location
X-Template
Rating
X-Country
X-B3-TraceId
X-Ua-Compatible
Accept-Ch-Lifetime
Accept-CH-Lifetime
X-Cloud-Trace-Context
X-Cache-Lookup
X-Ac
X-Url
Allow
X-Content-Type
X-Buckets
X-Trace
X-PC
X-Vname
X-TtlSet
X-Mod-Pagespeed
X-Varnish-TTL
X-Clacks-Overhead
Edge-Control
X-FastCGI-Cache
X-ESI
Cache-Tag
Fastly-Restarts
X-Rack-Cache
Service-Worker-Allowed
X-Server-Name
X-VARITI-CCR
X-Element-Page-Cache
Verso
X-GitHub-Request-Id
X-MS-InvokeApp
X-Upstream
X-Amz-Rid
X-Vcap-Request-Id
MS-Author-Via
Public-Key-Pins
X-Dw-Request-Base-Id
X-D2id
X-Client-IP
X-Cached
X-Abt-Application-Version
X-Origin-Cache
X-Cache-TTL
X-ORACLE-DMS-RID
X-ORACLE-DMS-ECID
Arr-Disable-Session-Affinity
X-Cnection
X-Country-Code
X-Px
X-Goog-Hash
X-Powered-By-Plesk
X-Navigation-Version
X-Kraken-Loop-Name
X-Aws-Lambda-Call-Status
X-NF-Request-ID
X-Instrumentation
X-Server-Lifecycle-Phase
X-Version
Access-Control-Request-Method
Accept-Ch
RTSS
X-Amz-Server-Side-Encryption
X-Powered-CMS
Display
X-Middleton-Display
Pagespeed
X-Sol
X-SRCache-Fetch-Status
X-SRCache-Store-Status
Response
X-Middleton-Response
X-Kinja-Revision
X-Use-Magma
X-Kinja-Server
X-Kinja-Build
X-Kinja
X-Exp-Id
X-Cdn-Fetch
X-Exp-Variant
X-GoogleNews-Bot
X-MSEdge-Ref
X-LLID
X-Edge
X-Edge-Location-Klb
X-Kinsta-Cache
X-CST
Nginx-Cache
X-Shield-Request-Id
X-B3-TraceId-Primal
Mrf-Cache-Status
MRF-Tech
AR-SID
AR-ATIME
S
AR-Request-ID
AR-PoweredBy
AR-CACHE
X-HP-Trace-Id
Content-MD5
X-HP-Webp
X-Jurisdiction
X-T
X-RateLimit-Remaining
X-Protected-By
X-Forwarded-For
X-Content-Security-Policy-Report-Only
TCN
X-Id
X-Mg-S
X-TTL
X-Mid
X-MCACHE
Fastcgi-Cache
X-Aspnetmvc-Version
X-Ttl
Realpath
Front-End-Https
X-Parallel-Accel
Edge-Cache-Tag
SPIisLatency
SPRequestDuration
X-Recruiting
X-Request-Processing-Time
X-Request-Received
Filters
X-Pinterest-Rid
Pinterest-Version
Pinterest-Generated-By
Fusion-Source
Fusion-Template-Id
Fusion-Deployment-Id
Fusion-Content-Source
Fusion-Component-Id
Fusion-Content-Id
Server-Node
X-DynaTrace
X-Content
X-Ab
X-Ua-Browser
SPRequestGuid
X-SharePointHealthScore
X-Ezoic-Cdn
Alternate-Protocol
Server-Name
X-Correlation-Id
X-Accel-Expires
X-NWS-LOG-UUID
X-Frontend
X-HS-Hub-Id
X-HS-Content-Id
X-HS-Combine-CSS
X-HS-Cache-Config
X-Yandex-Sdch-Disable
X-Hits
X-Cache-Key
X-Tt-Trace-Tag
X-Tt-Trace-Host
X-ECACHE
X-Content-Options
Cache-Tags
Host
MicrosoftSharePointTeamServices
X-Page-Id
X-Git-Hash
X-Fastly-Request-Id
Charset
Cleartype
X-B3-Sampled
X-Kong-Upstream-Latency
X-Kong-Proxy-Latency
X-Geo-Country
X-XRDS-LOCATION
X-Www-Served-By
X-Ruxit-Js-Agent
X-Content-Digest
TP-L2-Cache
X-Amz-Replication-Status
X-Ser
TP-Cache
Filterid
X-Forwarded-Proto
X-Amzn-Trace-Id
X-VCache
X-Varnish-Age
X-Hostname
X-AppVersion
X-Activity-Id
X-Az
X-Daa-Tunnel
X-Rid
X-Debug-Info
X-DIS-Request-ID
X-Origin-Server
X-Upgrade-Enabled
X-Grace
Access-Control-Allow-Method
X-N
X-Microsite
X-Request-Handler-Origin-Region
X-Origin-Upstream-Status
X-LB-Cache
X-FB-Debug
X-WebKit-CSP-Report-Only
X-Nginx-Upstream-Cache-Status
ServerID
X-Mobile-URL
X-TT
X-Request-Guid
X-Whom
X-Is-Crawler
X-Providence-Cookie
X-Route-Name
X-Flags
X-Aspnet-Duration-Ms
X-Goog-Storage-Class
X-Goog-Stored-Content-Length
X-NGENIX-Cache
X-F-Cache
X-Goog-Metageneration
X-GUploader-UploadID
X-Goog-Stored-Content-Encoding
X-Goog-Generation
X-App-Server
X-Varnish-Grace
Cross-Origin-Opener-Policy
X-App-Environment
Viewport
Payment
X-Tb
X-Distributor
X-FW-Static
X-FW-Server
X-FW-Dynamic
X-Server-ID
Node
X-FW-Type
X-FW-Hash
X-FW-Serve
Paypal-Debug-Id
DC
X-Cache-Control
X-Logged-In
X-Seen-By
Fastcgi-Useragent
X-Type
X-PressLabs-Stats
X-User-Agent
X-Cache-Age
Country
Accept-Charset
X-Ratelimit-Limit
X-Cache-Rule
X-Varnish-Backend
Version
X-Node-Name
X-Webkit-CSP
X-Browser-Type
X-DataDome
X-Erf-Bev-Bev-Is-Generated
X-Erf-Bev-Bev
X-Load-Cache
X-Wix-Request-Id
X-Tec-Api-Root
X-Tec-Api-Version
X-Tec-Api-Origin
X-Cache-Action
X-Via-JSL
X-IPLB-Instance
Refresh
Access-Control-Request-Headers
X-Original-Request-Id
Referer-Policy
X-Response-Served-From
SD-X-WS
Cache-Status
X-Jobs
Amp-Access-Control-Allow-Source-Origin
X-Drupal-Cache-Tags
X-Real-IP
X-Cacheable-TTL
X-Is-Bot
X-Proxy-Cache-Status
X-Vgn-Hpd-Reason
X-UUID
X-Rendered-As
X-Page-View
X-Debug
VIX-Pulpo-Upstream-Status
VIX-Pulpo-Node
NGB
X-B
X-Cluster-Name
X-RemovedCookies
X-ProcessESI
X-Revision
X-Contextid
X-B-Cache
X-Yottaa-Optimizations
X-Cache-Expired-At
X-Signature
X-Rule
X-Drupal-Cache-Contexts
X-Device-Type
X-Proxy
DynaTrace
X-Yottaa-Metrics
Liferay-Portal
X-Framework
Akamai-GRN
X-Instance
X-Mobile
X-G
X-Fastly-Request-ID
Surrogate-Key
X-Cache-Time
X-Debug-IsConnected
X-Debug-IsPreview
Healthy
X-Azure-Ref
X-FW-Version
X-Fastcgi-Cache
CF-IPCountry
X-Source
SID
X-Air-Hostname
X-TEC-API-ORIGIN
X-TEC-API-VERSION
X-TEC-API-ROOT
X-Air-Trace-Id
X-Air-Source
X-Ms-Version
X-Ms-Request-Id
X-Oracle-Dms-Rid
X-Oracle-Dms-Ecid
Frame-Options
X-Nginx-Cache
MS-CV
X-RTag
X-Cache-Hit
Ms-Operation-Id
X-APP-VERSION
Section-Io-Cache
X-CDN-Forward
Countrycode
X-Oneagent-Js-Injection
X-Tumblr-Pixel
X-Tumblr-Pixel-1
X-Tumblr-Pixel-0
X-Tumblr-User
Xserver
X-L-Path
X-Varnish-Server
X-Environment-Context
Count-Hit
X-Region
GEO-INFO
X-Cache-Operation
X-XRDS-Location
X-Servername
X-EdgeConnect-Cache-Status
X-Forwarded-Host
Uber-Trace-Id
X-Content-Powered-By
X-Backend-Name
X-Mode
Backend
Cross-Origin-Window-Policy
X-Accel-Buffering
X-IPS-LoggedIn
X-Adobe-Loc
X-Adobe-Content
X-Litespeed-Cache
X-Zen-Fury
Ec-Rule-Version
X-SaId
X-JoinUs
X-UPSTREAM-Address
Meta-Geo
X-RN-RSRV
X-Human
X-Hosted-By
X-Generation-Time
X-Debug-Cache
X-Sorting-Hat-PodId
X-Microcachable
X-Detected-As
X-Sorting-Hat-ShopId
X-ShardId
X-ShopId
X-Shopify-Stage
X-Cache-Type
X-Cache-Server
X-Alternate-Cache-Key
Eomportal-Instance
X-Varnish-Beresp-Grace
X-Cache-Grace
X-Redis-Cache
X-Site-Version
X-ProxyCache-Key
X-ServerID
X-Status
X-ProxyCache-Status
X-PHP-Backend
X-Storage
X-FB-TRIP-ID
Decoy-Debug-Key
Country-Code
X-Via-Fastly
Cache-Tv-Group
Cache-Name
Decoy-Debug-Status
Decoy-Debug-TTL
X-NCache
X-No-Session
Apigw-Requestid
X-BYPASS-REASON
Url
X-Origin-Date
X-Cache-TTL-Remaining
X-Sql-Duration-Ms
X-Sql-Count
X-Uri
TWC-GeoIP-Country
Mn-Server-Ip
TWC-GeoIP-LatLong
Webcakes-App-Name
TWC-Privacy
TWC-Locale-Group
TWC-Device-Class
TWC-Connection-Speed
X-SayCDN-TTL
X-Say-Cacheable
X-Ratelimit-Reset
X-Say-TTL
Fastly-SSL
Property-Id
Selected-Fe
X-Web-Node
Protected
X-UA-Device-Type
Webcakes-App-Version
X-Proxy-Build
X-Timing-Wait
X-Format
X-Cache-Host
X-Origin-Hint
X-Akamai-Edgescape
Webcakes-Region
X-NYM-Debug-Backend
X-Hl-Ver
X-OCL
X-PERF
X-PCL
Azure-Version
X-Proxied
X-Access
X-Routing-Service
X-ApacheServer
X-Pubstack
Azure-SlotName
X-Extlb
X-Azure-Ref-OriginShield
OT-Force-Account-Verify
X-Section
X-Zipkin-Id
X-Varnishpool
Azure-SiteName
Azure-InstanceId
Azure-RegionName
DB-Nickname
X-Server-W
X-R9-Blue-Green-Version
X-Cache-NGX
Content-Secure-Policy
X-Be
X-LSADC-Cache
X-Cluster-Node
X-RateLimit-Limit
Source
X-Tid
X-Rewrite-Enabled
X-Ua
X-Soup
X-NewRelic-App-Data
X-HTML-Minification-Powered-By
X-Time
X-Content-Age
X-Cache-Var-Map
X-Webkit-Csp
X-Amz-Meta-S3cmd-Attrs
X-Cached-By
X-Cache-Var
X-Presslabs-Stats
X-ECache
Content-Disposition
SRV
X-SRV
X-Dc
CDN-RequestCountryCode
CDN-PullZone
CDN-CachedAt
X-LAGOON
X-Unique-Id
CDN-EdgeStorageId
CDN-RequestId
CDN-Uid
Cache
X-Generated-By
CDN-Cache
X-Loop
X-Varnish-Hostname
X-TNCMS
X-Hyper-Cache
X-Varnish-Hits
X-Bc-Bl
Retry-After
X-S-Maxage
X-App-Version
Onion-Location
X-Origin-TTL
X-Auto-Login
X-Origin-CC
X-Tumblr-Pixel-3
X-TT-LOGID
X-Tumblr-Pixel-2
Webserver
X-GEO
X-Nginx-Cache-Key
Web-Mar-Node
Cache-Hits
X-Proto
Xet-Cookie
X-M-Reqid
X-Qnm-Cache
X-Endurance-Cache-Level
X-Tenant
X-Time-Microsecs
X-M-Log
X-Cdn
X-Akamai-Transformed
X-Edge-Location
X-CSRF-Token
X-Trace-Id
X-Platform-Server
X-AWS-Id
Mime-Version
X-GG-Cache-Date
X-LJ-Flow-ID
LB
X-VWS-Id
X-Correlation-ID
HostName
CloudFront-Viewer-Country
X-Mg-Request-UUID
X-CACHE-KEY
X-Amz-Apigw-Id
X-PHP-Host
X-Labrador-Cache-Channel
X-Amzn-RequestId
N-Cache
X-Xfnlog-Site
X-Cache-Tags
X-RCS-CacheZone
X-Locale
X-Handled-By
Upgrade-Insecure-Requests
X-Varnish-Cache-Hits
X-Storefront-Renderer-Rendered
X-Request-Time
ServedBy
X-Origin-Response-Time
X-Adobe-Source
WPO-Cache-Message
X-TIME
WPO-Cache-Status
X-AOL-HN
X-VC-Cache
X-B3-SpanId
X-Cache-Remote
X-A-Ccd
X-A-Dam
X-A-Dcw
X-A-Dgt
X-Ig-Push-State
X-Reqid
X-A
X-NAPM-TraceId
X-PAYTM-SRV-ID
X-PBS-Appsvrname
X-Planisys-CDN-Cache
X-Orig-Expires
X-ND-Cache
X-Planisys-CDN-Rules
X-B-Cookie
X-A-Wwc
BehaviorPad-Version
X-Forwarded-Path
X-Ckpd-Fst-Backend
X-Cluster
X-Conf
X-CF-Lambda-Version
X-CF-Lambda-Fn
X-Cache-Date
X-ARC
X-Cache-NE
X-Connection-Hash
X-Application
X-External-Request-Id
Surrogated-Key
X-Ftr-Request-Id
Nel
X-Developer
X-D
X-Aed
X-Destination
A
X-Planisys-CDN-TTL
X-TIM-N
X-V-Cache
DSUID
X-Vdms-Path
X-SVT-ORM-VERSION
X-SVT-ORM-RULES
X-SRCache-Key
X-Processor
DCR-Processing-Time-Ms
X-Vdms-Version
Odigeo-Trace-Id
Meta-Geo-Continent
X-ATG-Version
Expiry
Fastcgi-X-Cache-Version
Xc-Version
X-Vtex-Remote-Cache
X-VG-WebCache
Mobile-Detection-Method
X-Vtex-Processado-Em
X-Slack-Backend
DCR-Decision-By
X-ScT
X-Request-Host
Rendered-Blocks
X-Rojux
Origin
X-SD-PageType
X-S-Cookie
X-Session-Fingerprint
X-Shop-Environment
Pramga
Redirect-Candidate
State
X-S
X-Via-NSCOPI
Server-Info
Environment
X-MP-GENERATED-AT
L
X-Accel-Expires-Debug
Host-ID
Wxu-Next-Region
V-Age
Wxu-Next-Commit
Release
Wxu-Next-Hostname
Vix-Hermes-Req-Id
X-Li-Pop
X-Served-From
X-Server-IP
X-Skip-Cache
X-Scheme
X-Rocket-Nginx-Serving-Static
X-Owner
X-Policy
X-Proxy-Upstream
X-Sucuri-Cache
X-Sucuri-ID
X-Fastly-Cache
X-Gen-Mode
X-Hnp-Log
X-Block-Status
User-Cache-Control
X-Varnish-Beresp-Status
X-VG-TLSProxy
X-VServer
X-Origin-Time
X-Origin-Expires
X-Fetched-On
X-Forwarded-Site
X-Gdpr
X-Epic-Correlation-Id
X-Device-Os
X-Cache-Info
X-Core-Mission
X-Date
X-Geo-Header
X-Hash
X-Mvc-Supplant-Cachable
X-Nyt-Route
X-Old-Content-Length
X-Men
X-Location
Gh-Request-Id
X-LI-UUID
X-Cache-Bucket
X-Li-Fabric
From-Origin
Fastcgi-Cache-TTL
Cmstype
Datacenter
Cmsid
AKAMAI
CacheControlHeader
AMP-Access-Control-Allow-Source-Origin
X-Aicache-OS
Req-Svc-Chain
X-BBC-Edge-Cache-Status
X-Level-Front-Cache
X-Cache-Debug
Traceparent
Origin-CC
X-NodeID
Web-Mar-Region
X-Datadog-Sampling-Priority
Apple-News-Services-Request-Url
Apple-News-Services-Parsed-Url
X-Irp-Debug
Apple-News-Services-Handled
Apple-News-Services-Host
Origin-EX
X-Bip
X-Esi-Check
X-Fastly-Backend
X-Cdn-Origin
X-Gamma-Serve
X-TrackingId
X-Developers
X-Datadog-Parent-Id
X-Datadog-Trace-Id
X-TH-Server
X-Generated-On
X-GeoIP
X-Cache-Config
X-Core-Value
X-Branch-Name
X-HS-Content-Campaign-Id
X-HN
X-GeoIP-City
X-Gzip
X-Cache-Id
X-Ratelimit-Remaining
We-Hiring
X-Rocket-Build-Number
X-Viewer-Country
X-VarnishDD-TTL
X-Request-Start
Candidate-Md5Url
X-Region-Sid
X-Req
X-Sigma
Mail-Subject
X-Thanos
X-Thinkindot-L3
Fastly-GeoIP-CountryCode
X-Sn-Servicetimems
X-Sigma-Backend
Machine
Locid
Server-Host
PFcat
Thinkindot-CacheControl-Type
Thinkindot-CacheControl
Thinkindot-Control
Arc-Country
True-Client-Country-4JS
X-Platform
Svr
TDXMobile
CDCHOST
X-Magnolia-Registration
X-FC-Vary-Parameters
X-DefElseHash
X-Rebelmouse-Cache-Control
X-Origin
X-UnsetCookies
X-Eu-Site
X-Variation
X-DPWN-IS-SECURE
Fastly-SIE
X-DefHash
X-EC-Lua
Fastly-SWR
X-Has-Esi
X-JWT-State
X-Is-Gdpr
X-Worker
X-RateLimit-Remaining-Second
X-RateLimit-Limit-Second
X-Loc
X-Pod-Name
X-Request-URI
X-Varnish-CookieHashed-On
X-NU-AKA-ACS-Version
X-Qloud-Router
X-Envoy-Decorator-Operation
X-Varnish-Remaining-TTL
X-Varnish-CookieINHashed-On
NGX
X-Rebelmouse-Surrogate-Control
NM-Fastcgi-Cache
X-Backend-State
Platform
Cf-Device-Type
Adler-Geo
X-Amzn-Remapped-Content-Length
X-Webstats-RespID
Memcached
X-Csrf-Jwt
Ha-Gx-Prefs
HA-Ipaddr
Is-Eu
L5d-Success-Class
X-CGP
X-FireWall-Port
X-Xrds-Location
Fastly-Drupal-Html
WWW-Authenticate
X-Node-Id
X-Cdn-Srv
Sslversion
X-Tx-Id
CDN
X-Zone
X-LB-ID
X-CS
X-API-Version
X-NC
On-Server
Ssr
X-Trace-ID
X-CLOUD-TRACE-CONTEXT
X-Response-By
X-Mvc-Supplant-OutputCached
Esi-Enabled
Pics-Label
X-Vc
X-Tt-Logid
X-Varnish-Beresp-Ttl
X-Up
WP-Super-Cache
X-Generated-In
C-Via
Memory
X-Refresh
X-Service
Ms-Author-Via
Time
X-DynaTrace-JS-Agent
X-Datadome
X-LB-NoCache
X-Edge-Pop
X-Cache-PHP
X-Cache-Enabled
NtCoent-Length
X-Backend-TTL
X-TraceId
X-TA-CDN-Provider
X-GeoIP-Country-Code
X-Via-Poph
X-Via-Popn
Env
X-Via-Popv
X-GeoIP-Region-Code
GeoIp-Country-Code
X-Tb-Optimization-Total-Bytes-Saved
X-Varnish-Ttl
X-Dynatrace
X-NWS-UUID-VERIFY
X-Varnish-Beresp-TTL
Magicmarker
X-Cache-Status-Check
X-Parent-Response-Time
X-Optimistic-Header
X-DC
X-Render-Time
X-Info
X-ZONE
Kp-EeAlive
X-Restarts
X-Ua-Device
X-Esi
X-Cs
X-Servedbyhost
X-Srv
X-CacheTTL
S-Rt
X-TX-ID
WebServer
X-Unique-ID
X-AIR-PT
X-MSEdge-Flight
X-Wix-Viewer-Type
Edge-Cache
X-DSS
X-DB
X-Clientip
X-MSEdge-Features
X-DI
X-RPM
X-DW
X-RPS
X-Cache-Backend
X-Action
Server-ID
X-RSL
HIT
X-Oss-Request-Id
X-Oss-Server-Time
X-Oss-Hash-Crc64ecma
X-Oss-Object-Type
Cache-Host
UCS
X-Oss-Storage-Class
X-Li-Proto
X-VCL-Version
X-App
X-Minions-Version
X-Newrelic-Synthetics
Proxy-Connection
X-Cache-Ttl
X-FPC
S-Cnection
Section-Io-Id
X-B3-Spanid
X-LiteSpeed-Cache-Control
Section-Io-Origin-Time-Seconds
X-URL
Section-Origin-Responded
Section-Io-Origin-Status
Lb
Server-Id
X-Fpc
X-HA-Backend
X-LI-Proto
X-Webkit-Csp-Report-Only
Test
X-Vcl-Version
X-Akamai-Request-ID2
X-Traceid
X-Http-Reason
X-Micro-Cache
Fastly-Backend-Name
User-Agent
X-Webkit-CSP-Report-Only
X-NODE
Geo-Info
X-Backend-Host
Tcn
Accept-Language
X-User
X-BCube-Filmed-By
X-Pad
X-Ec-Fail
X-Release
X-Ec-GeoHdr
X-Pass-Why
X-ES-SERVER
Locale
Fastly-Drupal-HTML
X-LiteSpeed-Tag
X-HostName
Cf-Int-Pingora-Origin-Digest
X-Check-Cacheable
X-APP
X-Urbn-Site-Id
X-Urbn-Context-Path
Resin-Trace
X-CSRF-TOKEN
X-BBC-Origin-Response-Status
Cache-Key
VNS-Cache
CPC-Cache
CPC-Age
X-Amz-Meta-Cb-Modifiedtime
EpKe-Alive
X-ServedByHost
X-ID
X-Ha-Backend
Path
VNS-Age
Hostname
X-Fmm-Version
X-Clara-WADP
GeoIP-Country-Code
X-WADP-Cache
Hit
Cdncip
X-AK-Request-ID
M-TraceId
Ohc-File-Size
X-Via-PopV
X-Via-PopN
Cdnsip
X-Akamai-Pragma-Client-IP
X-WA-Info
X-Via-PopH
Srv
X-WA
X-Geo
X-Dynatrace-Js-Agent
X-Wikidot-Static-Cache
MIME-Version
X-Wikidot-Backend
Geoip-Latitude
X-Cms-Context
Pagetype
Cluster
Shield-Pop
X-ElasticPress-Query
X-Edge-POP
ENV
My-App
X-Cdn-Forward
X-PJAX-URL
X-Via-Ucdn
Load-Balancing
Tracecode
X-From
X-CUA
Lfy
X-Var-Ttl
MD5-Digest
X-CCDN-Origin-Time
X-HS-Status
X-CCDN-CacheTTL
X-Api-Version
X-Hcs-Proxy-Type
X-Edge-Cache
X-NGINX-Cache
X-ServerName
T-Server
URI
X-VG-WebServer
X-Ucs
X-UP
X-Fastly-Cache-Hits
W
Server-Hostname
WZWS-RAY
Servername
X-Fragments
X-Fastly-Backend-Reqs
X-GoCache-CacheStatus
X-SIPLIST1
X-Cache-Expires
Lang
Sever-Int
Server-Ext
X-Mcache
X-RAMCache
IsBot
X-Dw-Trace-Id
X-TRACE-ID
X-VC
X-Cdn-Request-ID
X-Lb-Id
X-B3-ParentSpanId
X-WP-CF-Super-Cache
X-WP-CF-Super-Cache-Cache-Control
Cdn
X-Provided-By
Target-Params
X-RateLimit-Reset
X-Nc
Cteonnt-Length
PICS-Label
Ohc-Cache-HIT
Cneonction
X-Akamai-ERRuleID
X-Acquia-Application-UUID
X-Last-Modified
X-Akamai-ERPolicy
X-Acquia-Purge-Tags
X-Acquia-Application-Trace
X-Swift-Error
Server-Ttl
X-Acquia-Site
X-Snapshot-Date
X-Apw-Access-Action
X-Cc-Via
X-Apw-Access-Token
X-Apw-Hits
X-Cache-ASPX
X-Platform-Router
X-Platform-Processor
Dnion-Transfer-Encoding
X-Newrelic-App-Data
HitType
X-Akamai-Request-ID
X-Platform-Cluster
X-Contensis-Viewer-Groups
X-Apw-Access-Object
X-Via-CDN
Cf-Ipcountry
CF-Cached-On
X-Yottaa-OS
Vha6-Origin
X-Cache-Ngx
X-Air-Pt
Sid
X-CacheKey
Uri
X-Varnish-Authentication
X-HTML-Edge-Cache
X-UA
Req-ID
Ngx
X-Te-Duration-Ms
X-Te-Count
X-B3-Parentspanid
X-Miniprofiler-Ids
FSS-Cache
CountryCode
X-Sentry-ID
X-Http-Duration-Ms
X-Http-Count
X-Logging-Id
X-Lb-Nocache