Threat Level: green Handler on Duty: Renato Marinho

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