Threat Level: green Handler on Duty: Jan Kopriva

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