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