Threat Level: green Handler on Duty: Didier Stevens

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