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
X-Frame-Options
Expires
Strict-Transport-Security
Content-Length
X-Content-Type-Options
Link
Accept-CH
Last-Modified
CF-Cache-Status
ETag
Expect-CT
Accept-Ranges
X-XSS-Protection
X-Cache
X-Powered-By
Pragma
Via
CF-RAY
Age
Content-Security-Policy
Alt-Svc
Report-To
NEL
Referrer-Policy
Access-Control-Allow-Origin
X-Amz-Cf-Pop
X-Amz-Cf-Id
Content-Language
X-Cache-Hits
P3P
X-UA-Compatible
X-Served-By
X-Download-Options
X-Xss-Protection
X-Request-Id
X-Timer
Access-Control-Allow-Headers
CF-Ray
Access-Control-Allow-Methods
X-Varnish
X-Adblock-Key
X-Permitted-Cross-Domain-Policies
Access-Control-Allow-Credentials
Accept-CH-Lifetime
Content-Security-Policy-Report-Only
X-DNS-Prefetch-Control
X-AspNet-Version
X-Runtime
Permissions-Policy
X-Drupal-Cache
Server-Timing
X-Generator
X-Envoy-Upstream-Service-Time
X-Cache-Status
X-FRAME-OPTIONS
X-Cacheable
X-Ua-Compatible
X-Iinfo
X-Drupal-Dynamic-Cache
Timing-Allow-Origin
X-CONTENT-TYPE-OPTIONS
Accept-Ch
Feature-Policy
X-Content-Security-Policy
Xkey
X-XSS-PROTECTION
Upgrade
Access-Control-Expose-Headers
X-CDN
Content-Encoding
Status
X-AspNetMvc-Version
Access-Control-Max-Age
X-Amz-Request-Id
X-Amz-Id-2
Host-Header
X-Age
Request-Context
X-Backend
Cf-Edge-Cache
X-Amz-Version-Id
X-Robots-Tag
X-Hacker
Keep-Alive
X-Via
Cf-Apo-Via
X-Turbo-Charged-By
X-Vhost
X-AH-Environment
X-Rq
X-Server
X-Dispatcher
X-Cache-Group
X-Proxy-Cache
CONTENT-SECURITY-POLICY
X-Request-ID
X-Ws-Request-Id
EagleId
X-UA-Device
X-Varnish-Cache
Pantheon-Trace-Id
Grace
X-Litespeed-Cache
X-Pantheon-Styx-Hostname
X-Styx-Req-Id
X-Server-Powered-By
X-OneAgent-JS-Injection
X-Dns-Prefetch-Control
X-WebKit-CSP
X-Pingback
X-Page-Speed
Allow
X-EdgeConnect-Origin-MEX-Latency
X-EdgeConnect-MidMile-RTT
X-Swift-SaveTime
X-Swift-CacheTime
Ali-Swift-Global-Savetime
X-Cache-Lookup
X-FTR-Request-ID
X-Device
X-Node
X-Host
X-Server-Id
EagleEye-TraceId
X-Backend-Server
X-Country-Code
Surrogate-Control
X-Cloud-Trace-Context
X-Ruxit-JS-Agent
Cf-Railgun
X-Readtime
X-Akam-SW-Version
X-HW
X-Response-Time
P3p
Cache-Tag
X-Amz-Server-Side-Encryption
X-LiteSpeed-Cache
Content-Location
X-Ua-Device
Accept-Ch-Lifetime
Cross-Origin-Opener-Policy
X-Content-Type
X-Nginx-Cache-Status
X-Nginx-Upstream-Cache-Status
X-Rack-Cache
Request-Id
Service-Worker-Allowed
X-Trace
X-TraceId
X-Application-Context
Fastly-Restarts
X-Nf-Request-Id
X-Element-Page-Cache
X-Times
X-D2id
X-PC
X-Vname
X-TtlSet
Rating
X-Clacks-Overhead
X-Cnection
X-Oneagent-Js-Injection
X-Midtier
X-Mcache
X-Edge
X-Navigation-Version
X-Country
X-FTR-Cache-Status
X-FTR-Balancer
X-FTR-Backend
X-FTR-Backend-Server
X-Country-Code-Real
X-Vcap-Request-Id
Origin-Trial
X-Browser-Type
X-FTR-Expires
Edge-Control
X-ESI
X-Cache-TTL
Surrogate-Key
X-FastCGI-Cache
X-NWS-LOG-UUID
X-Kinja-Revision
X-Kinja
X-GoogleNews-Bot
X-Exp-Id
X-Kinja-Build
X-Cdn-Fetch
X-Exp-Variant
X-Kinja-Server
X-Powered-By-Plesk
X-Ac
X-Abt-Application-Version
X-Url
X-Upstream
X-Mod-Pagespeed
X-Amz-Rid
Verso
X-ORACLE-DMS-RID
X-Language
X-B3-TraceId
Nginx-Cache
Akamai-GRN
X-ECACHE
Pinterest-Version
Pinterest-Generated-By
X-Pinterest-Rid
X-GitHub-Request-Id
Display
X-MS-InvokeApp
Pagespeed
X-Sol
X-Middleton-Display
S
X-Erf-Bev-Bev-Is-Generated
X-Instrumentation
X-Server-Lifecycle-Phase
X-Kraken-Loop-Name
X-Erf-Bev-Bev
X-PDP-UNCACHING-HASH
X-Envoy-Decorator-Operation
Response
AR-Request-ID
AR-ATIME
AR-PoweredBy
X-Middleton-Response
Edge-Cache-Tag
X-Amzn-Trace-Id
X-Request-Device-Id
SPRequestDuration
SPRequestGuid
SPIisLatency
X-SharePointHealthScore
X-T
X-Goog-Hash
X-Distributor
X-Ratelimit-Limit
X-Resp-Is-Stale
X-Ser
X-Edge-Location-Klb
X-Kinsta-Cache
X-ARC
Access-Control-Request-Method
X-NGENIX-Cache
X-Meli-Trace-Bu
X-Meli-Trace-Site
X-Meli-Trace-Platform
Front-End-Https
X-Ruxit-Js-Agent
X-Shield-Request-Id
X-Dw-Request-Base-Id
X-Client-IP
X-Content-Digest
X-Ttl
X-Ezoic-Cdn
X-Recruiting
RTSS
X-Cache-Key
Cache-Status
X-Request-Processing-Time
X-Request-Received
X-Version
X-Varnish-TTL
X-Mg-S
X-Powered-CMS
Public-Key-Pins
X-Ismobilevalue
X-HS-Cache-Config
X-HS-Hub-Id
X-HS-Content-Id
TP-Cache
X-MSEdge-Ref
Fastcgi-Cache
X-Accel-Expires
AR-CACHE
Arr-Disable-Session-Affinity
Cache-Tags
X-Correlation-Id
X-Cached
X-Amz-Replication-Status
X-Cluster-Name
Ar-SID
X-Daa-Tunnel
YJS-ID
Realpath
X-Id
Content-MD5
X-Content-Security-Policy-Report-Only
X-Newrelic-App-Data
X-HS-Combine-CSS
X-RateLimit-Remaining
X-Fastly-Request-ID
Payment
X-Ua-Browser
X-Kong-Proxy-Latency
X-Azure-Ref
X-Kong-Upstream-Latency
X-Forwarded-For
X-Cambria-Cache-Control
X-HP-Trace-Id
X-DIS-Request-ID
X-Jurisdiction
X-Xrds-Location
X-HP-Webp
X-Server-Name
X-HS-CF-Cache-Status
X-HS-Prerendered
X-GUploader-UploadID
Content-Disposition
MicrosoftSharePointTeamServices
X-SRCache-Store-Status
X-SRCache-Fetch-Status
X-Amzn-RequestId
X-Amz-Apigw-Id
X-TTL
X-Protected-By
X-Px
Count-Hit
X-ORACLE-DMS-ECID
X-Ratelimit-Reset
X-Az
X-Unique-Id
X-Origin-Server
X-Activity-Id
X-AppVersion
X-Page-Id
X-Rid
X-Logged-In
X-Amz-Meta-S3cmd-Attrs
X-Git-Hash
Accept-Charset
Cleartype
Cross-Origin-Resource-Policy
X-Request-Handler-Origin-Region
X-VARITI-CCR
X-Proxy
X-Ratelimit-Remaining
Cross-Origin-Embedder-Policy
X-FB-Debug
X-Microsite
X-Www-Served-By
X-TEC-API-ROOT
X-TEC-API-VERSION
X-TEC-API-ORIGIN
X-Load-Cache
X-COUNTRY
Version
X-Hits
X-Webkit-Csp
X-LLID
X-Goog-Metageneration
X-Geo-Country
X-Forwarded-Proto
X-Template
X-PressLabs-Stats
X-Varnish-Backend
X-Upgrade-Enabled
X-SERVER-NAME
Server-Node
X-WebKit-CSP-Report-Only
X-B3-Sampled
Server-Name
X-Hostname
X-App-Server
Healthy
Access-Control-Allow-Method
X-Content-Options
X-Frontend
X-Varnish-Grace
Viewport
Section-Io-Cache
X-Grace
X-TT
X-CST
X-Device-Type
X-Fb-Rlafr
Fastly-SIE
Fastly-SWR
X-B
AKAMAI-GRN
X-Varnish-Server
Alternate-Protocol
X-Request-Guid
MRF-Tech
X-B3-TraceId-Primal
Mrf-Cache-Status
X-Contextid
X-Requestid
X-Status
X-ProcessESI
X-RemovedCookies
X-Goog-Storage-Class
X-Cache-Age
X-Goog-Stored-Content-Encoding
X-Goog-Generation
X-Goog-Stored-Content-Length
DC
TCN
Upgrade-Insecure-Requests
X-Hl-Ver
X-Amzn-Remapped-Content-Length
X-Magnolia-Registration
X-Varnish-Ttl
Retry-After
X-EdgeConnect-Cache-Status
Host
X-Cache-Control
X-CSRF-Token
X-App-Version
MS-Author-Via
Frame-Options
X-Type
X-Original-Request-Id
X-Revision
X-Origin-CC
X-Origin-TTL
X-Response-Served-From
X-Buckets
SD-X-WS
X-Tt-Trace-Tag
X-Tt-Trace-Host
Amp-Access-Control-Allow-Source-Origin
X-Debug
X-Mobile
X-Yandex-Req-Id
X-Seen-By
X-Instance
X-INCAP-ABP
X-ServerID
X-UUID
X-Backend-Name
VIX-Pulpo-Node
VIX-Pulpo-Upstream-Status
X-G
X-Yottaa-Metrics
X-Oracle-Dms-Ecid
X-N
Cross-Origin-Opener-Policy-Report-Only
X-Yottaa-Optimizations
X-Cache-Status-Check
X-Adobe-Loc
X-Lambda-Id
Cross-Origin-Embedder-Policy-Report-Only
X-NYM-Debug-Backend
X-Adobe-Content
X-Akamai-Edgescape
X-Tumblr-User
X-Tumblr-Pixel
X-Is-Bot
X-Rendered-As
X-Tumblr-Pixel-1
X-Tumblr-Pixel-0
X-Debug-IsConnected
Ms-Operation-Id
X-Debug-IsPreview
X-Akamai-Request-ID2
X-Content-Powered-By
X-WP-CF-Super-Cache-Cache-Control
X-RTag
Access-Control-Request-Headers
X-Trace-Id
X-WP-CF-Super-Cache
X-Mg-Request-UUID
Section-Io-Id
X-AB
Xet-Cookie
MS-CV
NGB
X-Framework
X-Server-W
Cache
X-Storage
X-RM-Cache-TTL
Charset
X-Dc
X-Vcl-Version
Webserver
Paypal-Debug-Id
Filterid
X-DataDome
YJS-CacheStatus
Accept-Language
X-VC-Cache
X-Timing-Wait
X-Proxy-Build
Selected-Fe
X-Ms-Version
Refresh
X-Ms-Request-Id
Onion-Location
X-Cache-Time
X-B3-SpanId
X-Cacheable-TTL
X-ProxyCache-Key
X-BYPASS-REASON
X-ECache
X-ProxyCache-Status
X-Cache-Hit
SRV
X-User-Agent
X-Tec-Api-Root
X-Tec-Api-Version
X-Fastcgi-Cache
X-Tec-Api-Origin
X-Request-Platform
X-F-Cache
X-Time
X-Request-Bu
X-Request-Site
X-Region
X-Node-Name
X-Real-IP
X-VC
Priority
Liferay-Portal
X-Hcs-Proxy-Type
X-CCDN-CacheTTL
X-CCDN-Origin-Time
Apigw-Requestid
GEO-INFO
X-Mode
CDN-RequestId
X-Environment-Context
X-Origin-Cache
X-HTML-Minification-Powered-By
X-L-Path
X-IPS-LoggedIn
Front
X-Service
Backend
X-LB-Cache
X-Rule
X-Rocket-Nginx-Serving-Static
Meta-Geo
X-HITS
X-Pass-Why
X-Origin
X-Mly-Id
X-JoinUs
X-Datadog-Parent-Id
X-Server-ID
X-Api-Version
X-Drupal-Cache-Tags
X-UPSTREAM-Address
Cross-Origin-Window-Policy
Country
X-Cache-Expired-At
X-Tb
X-Datadog-Sampling-Priority
X-Datadog-Trace-Id
X-VCT
X-Datadog-Sampled
X-SaId
X-Rn-Rsrv
X-Rewrite-Enabled
X-Tcp-Rtt
X-Handled-By
X-Is-Tablet
X-Is-Desktop
X-Geo-Region
X-Browser-Name
X-Adobe-Source
X-Is-Mobile
X-Wix-Request-Id
X-Is-Mobile-Only
X-Is-Supported-Browser
X-Is-Modern-Browser
X-Whom
X-Generation-Time
X-Web-Node
X-Provided-By
Mn-Server-Ip
X-Varnish-Beresp-Grace
X-Zipkin-Id
TWC-GeoIP-City
Expiry
Property-Id
X-Vcache
TWC-Connection-Speed
TWC-Device-Class
X-Proxied
X-Cloudmap
Webcakes-Region
X-Connection-Hash
X-Detected-As
X-FB-TRIP-ID
X-Extlb
Webcakes-App-Version
Webcakes-App-Name
TWC-Privacy
Uber-Trace-Id
Url
TWC-Locale-Group
Web-Mar-Node
TWC-GeoIP-Region
X-Httpd
X-Routing-Service
X-RCS-CacheZone
X-Servername
TWC-GeoIP-DMA
X-Tncms
X-RateLimit-Remaining-Second
X-RateLimit-Limit-Second
X-Origin-Date
X-Loop
X-Origin-Hint
X-Proxy-Cache-Info
TWC-GeoIP-LatLong
TWC-GeoIP-Country
Fastcgi-Useragent
ServerID
X-WP-CF-Super-Cache-Active
X-Hosted-By
X-Hit
OT-Force-Account-Verify
X-Locale
X-App-Environment
X-Redis-Cache
X-Auth-Group-Type
X-MP-GENERATED-AT
ServedBy
X-Format
Protected
X-Cluster
X-Cache-Debug
X-Cms-Context
X-Director
DB-Nickname
X-Fetched-On
X-Cache-Action
X-Logging-Id
X-Alternate-Cache-Key
X-Tumblr-Pixel-3
X-Cdn-Origin
X-Forwarded-Host
X-Storefront-Renderer-Rendered
X-Shopify-Stage
X-Soup
X-Tumblr-Pixel-2
X-Skip-Cache
Atl-Traceid
X-Cluster-Node
X-Debug-Info
X-CLOUD-TRACE-CONTEXT
X-Scope-Id
X-Cache-Host
X-Optimistic-Header
X-Say-Cacheable
X-Say-TTL
X-Edge-Location
X-SayCDN-TTL
X-Endurance-Cache-Level
X-FW-Serve
X-FW-Server
X-FW-Static
X-FW-Type
X-FW-Hash
X-Restarts
X-Urbn-Site-Id
X-Served-From
X-FW-Dynamic
X-FW-Version
X-Urbn-Context-Path
Cache-Hits
Environment
Locale
X-S
LB
Node
X-IPLB-Request-ID
X-Tt-Logid
X-Labrador-Cache-Channel
X-Drupal-Cache-Contexts
X-PHP-Host
X-IPLB-Instance
Countrycode
Filters
X-Platform
X-R9-Blue-Green-Version
X-CDN-Forward
X-CDN-Cache-Status
X-URL
AMP-Access-Control-Allow-Source-Origin
Xserver
X-GEO
WPO-Cache-Status
X-No-Session
X-XRDS-Location
X-Varnish-Age
X-B3-Traceid
X-ShopId
X-WP-CF-Super-Cache-Cookies-Bypass
X-Sorting-Hat-ShopId
X-ShardId
X-Sorting-Hat-PodId
X-Client-Ip
X-Varnish-Cache-Hits
X-Lagoon
X-NWS-UUID-VERIFY
Cache-Tv-Group
X-Varnish-Beresp-Ttl
X-Generated-By
X-B-Cache
Request-ID
X-NewRelic-App-Data
X-Ua
X-UA
X-Presslabs-Stats
X-Signature
X-Fastly-Request-Id
Referer-Policy
Expect-Staple
X-Clientip
X-SRCache-Key
X-SRV
We-Hiring
Mail-Subject
CloudFront-Viewer-Country
X-Webstats-RespID
X-Azure-Ref-OriginShield
X-PHP-Backend
X-Upstream-Ct
X-Cache-Rule
X-Cache-Operation
X-IsAdmin
X-Site-Version
X-Upstream-Ht
AR-SID
X-TA-CDN-Provider
X-Cache-FS-Status
From-Origin
Cache-Provider
X-Auto-Login
Location
X-Worker
X-VWS-Id
X-LJ-Flow-ID
Fl-Custom-Application
X-Bc-Bl
X-AWS-Id
X-Accel-Version
X-Server-IP
Sid
X-Litespeed-Cache-Control
X-Cache-NE
Rendered-Blocks
X-Bl-Debug
X-Loc
Redirect-Candidate
X-VC-TTL
X-A
X-Ig-Push-State
X-Aed
X-BCube-Filmed-By
X-Tb-Optimization-Total-Bytes-Saved
X-Org
X-ND-Cache
X-Cs
X-A-Dam
Source
Xc-Version
X-A-Ccd
X-Ec-Fail
X-Ec-GeoHdr
WPO-Cache-Message
X-Vdms-Version
X-D
X-External-Request-Id
X-GeoCountry
Origin-Agent-Cluster
X-ScT
X-S-Cookie
Origin
X-Vtex-Remote-Cache
X-GeoCode
Pragrma
Meta-Geo-Continent
N-Cache
Ngx.Var.Host
MD5-Digest
X-Content-Age
Host-ID
X-A-Wwc
Lang
X-CACHE-AGE
X-ApacheServer
X-B-Cookie
X-Rojux
DCR-Processing-Time-Ms
X-Destination
X-A-Dgt
X-A-Dcw
X-Conf
X-Developer
X-PERF
X-Application
DCR-Decision-By
S-Rt
Candidate-Md5Url
X-Ig-Origin-Region
Sslversion
X-FORWARDED-FOR
X-Tx-Id
X-Xfnlog-Site
X-From
X-Epic-Correlation-Id
CDN-Cache
X-FC-Vary-Parameters
X-Eu-Site
Canary
CDN-EdgeStorageId
CDN-CachedAt
X-Fmm-Version
X-Fastly-Backend
X-Forwarded-Site
Country-Code
X-CUA
Gh-Request-Id
Gannett-Cam-Experience-Id
Odigeo-Trace-Id
X-CGP
Fastly-SSL
Ha-Gx-Prefs
X-Csrf-Jwt
Log-Origin
X-Contensis-Viewer-Groups
L5d-Success-Class
X-Cms-Device
X-Core-Value
IsBot
X-CacheTTL
X-Depends
CDN-RequestPullSuccess
CDN-Uid
CDN-RequestPullCode
CDN-RequestCountryCode
CDN-PullZone
X-Ee-Request-Date
Cdncip
Cdnsip
Origin-Site
X-Gamma-Serve
Cluster
X-Ee-Generated-By
X-Ee-Origin
X-Ee-Request-Id
X-Old-Content-Length
X-Vary-Devices
X-Rocket-Build-Number
X-Save-Cache
Web-Mar-Region
X-Section
X-SD-PageType
Store-Cloud-Cache
X-Req
Apple-News-Services-Request-Url
Wxu-Next-Commit
X-VG-WebCache
X-VG-TLSProxy
ServerName
X-Sigma
X-Sigma-Backend
X-AK-Request-ID
Time-Cloud-Cache
X-V-Cache
X-Access
X-Action
X-Aicache-OS
X-Varnish-Authentication
X-Varnish-Beresp-Status
X-Slack-Backend
X-SIPLIST1
X-Varnish-Hostname
X-Varnish-Director
X-Slack-Shared-Secret-Outcome
X-PAYTM-SRV-ID
X-Policy
X-GoCache-CacheStatus
X-GeoIP-Region-Code
X-Hash
X-Cache-Aspx
X-Bug-Bounty
X-GeoIP-Country-Code
X-GeoIP-City
Apple-News-Services-Parsed-Url
Apple-News-Services-Host
Apple-News-Services-Handled
Powered-By
X-HS-Content-Campaign-Id
X-Internal-TTL
RNT-Machine
X-LSADC-Cache
Wxu-Next-Region
X-Node-Id
X-Micro-Cache
X-Mvc-Supplant-Cachable
X-Origin-Expires
Wxu-Next-Hostname
RNT-Time
X-Parent-Response-Time
X-Cache-Date
X-Acquia-Purge-Cdn-Unconfigured
X-Accel-Expires-Debug
X-App-Name
X-Block-Status
X-Amz-Storage-Class
X-Backend-Instance
X-Bip
X-BBC-Edge-Cache-Status
X-AB-Test
X-Akamai-Device-Characteristics
X-Nyt-Route
X-Thanos
X-SVT-ORM-VERSION
X-Thinkindot-L1
X-Thinkindot-L3
X-UA-Device-Type
X-SVT-ORM-RULES
X-Sucuri-Cache
X-Reqid
X-Render-Time
X-Request-URI
X-SB
X-Shield-Cache-Expires
X-Up
X-Uri
X-We-Are-Hiring
X-Vmg-Version
X-Wikidot-Backend
X-Wikidot-Static-Cache
X-Sn-Servicetimems
X-Viewer-Country
X-Via-Fastly
X-Varnish-CookieHashed-On
X-Varnish-CookieINHashed-On
X-Varnish-Remaining-TTL
X-VarnishDD-TTL
X-Region-Sid
X-Pubstack
X-Gdpr
X-Frame-Option
X-Gen-Mode
X-Generated-On
X-HN
X-Ec-Custom-Error
X-Dispatcher-Server
X-Debug-Cache-Fetch
X-Date
X-Debug-Cache-Store
X-DefElseHash
X-DefHash
X-Hnp-Log
X-Human
X-Op-Id-All
X-NMSegId
X-Origin-Time
X-Path
X-Proto
X-Mvc-Supplant-OutputCached
X-Men
X-Ion-Healthy
X-Ion-Hop
X-Jungle-Id
X-Level-Front-Cache
X-Content-Length
TDXMobile
Cache-Contol
CDCHOST
Pics-Label
PFcat
Release
Fastly-Backend-Name
RewriteTestHook
RewriteTeamHook
Azure-Version
Origin-EX
Origin-CC
Cmstype
Content-Script-Type
Content-Style-Type
DSUID
Cmsid
L
Nord-Request-ID
NM-Fastcgi-Cache
Machine
Server-Host
Req-Svc-Chain
V-Age
CF-IPCountry
User-Cache-Control
Thinkindot-CacheControl-Type
Mime-Version
Azure-SlotName
Thinkindot-CacheControl
Azure-RegionName
Vix-Hermes-Req-Id
Azure-SiteName
Azure-InstanceId
X-NGINX-Cache
X-Edge-Server
X-Moov-Xdn-Version
X-Moov-Xdn-Caching-Status
X-DPWN-IS-SECURE
X-Wormhole-Sdk
X-Proxied-Request
X-Moov-T
Load-Balancing
X-Vercel-Cache
X-Vercel-Id
C-Via
X-Gzip
X-Esi-Check
X-ElasticPress-Query
Click-Count-Action-Start
X-Location
Cdn-Request-Time
Cdn-Host
Click-Count-Error
CacheControlHeader
X-Cache-Id
Tube-Got-Eval
Tube-Got-Results
Platform
Producers
X-B3-Trace-ID
Fastly-GeoIP-CountryCode
Tube-Return
Tube-Get-Contents
X-Cached-By
XM
X-ZONE
X-Origin-Response-Time
X-Pad
X-NF-Request-ID
X-Air-Pt
Fastly-Drupal-HTML
X-Sucuri-ID
X-Varnish-Hits
Cookie
NGX
X-Via-Poph
X-Refresh
Debug
X-Debug-Service
X-Datadome
X-Via-Popn
X-Nginx-Cache-Key
X-Via-Popv
True-Client-Country-4JS
X-AIR-PT
X-Srv
X-APP
Server-Hostname
Server-Ext
Sever-Int
X-HA-Backend
X-Webkit-CSP
GeoIP-Latitude
GeoIp-Country-Code
X-Servedbyhost
X-Source
Show-Do-Not-Sell-Link
X-Litespeed-Tag
Traceparent
X-DynaTrace-JS-Agent
HA-Ipaddr
Product
X-TH-Server
X-Cache-Backend
X-Nananana
X-Zone
WZWS-RAY
X-Ez-Minify-Html
Server-ID
X-Unity-Cache
HostName
X-LB-ID
Cdn
DataCenter
X-Amz-Meta-Cb-Modifiedtime
X-Cdn-Forward
Fastly-Drupal-Html
X-Cache-VC
X-Wa
X-B3-Parentspanid
X-Nc
X-GeoIP
X-Fpc
X-User
Edge-Cache
Tcn
X-Newrelic-Synthetics
X-VCL-Version
X-TT-LOGID
X-CDN-Provider
Lb
X-AC
X-B3-Spanid
X-Nginx-Cache
SID
A
XkeyR9
X-Proxy-Cache-La3
Xkeylog
Serverhost
Resin-Trace
X-Proxy-CacheR9
X-Vc
Xkey-La3
X-Request-Start
X-Datacenter
X-TX-ID
Akamai-Mon-Iucid-Del
MIME-Version
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X-LB-NoCache
X-Lsadc-Cache
Yjs-Id
Cs
NtCoent-Length
X-RateLimit-Limit
Sm-Log-Id
Wsr-Cache
X-Service-Response-Time
X-Scheme
Esi-Enabled
X-LiteSpeed-Tag
Cdn-Requestid
CDN
X-WA
X-LiteSpeed-Cache-Control
X-API-Version
X-Dynatrace-Js-Agent
X-VC-Age
X-NC
X-FPC
X-Aspnet-Version
Uri
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X-Udemy-Cache-App-Namespace
Hostname
X-HubSpot-Correlation-Id
X-Request-Host
X-ID
X-Pool
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X-Styx-Info
X-Akamai-Pragma-Client-IP
X-HA-Device-Type
X-TIM-N
X-Html-Minification-Powered-By
X-Fastly-Backend-Reqs
X-Via-JSL
Content-Secure-Policy
X-Styx-Origin-Id
Datacenter
X-HA-Bot-Classification
X-CS
X-NodeID
X-HA-Application-Name
Server-Id
Cr
Proxy-Firewall
X-Stale
Pramga
X-RequestId
X-Var-Ttl
X-Srcache-Store-Status
X-Srcache-Fetch-Status
X-Ez-Minify-Js
Geoip-Latitude
X-Vgn-Hpd-Reason
RATING
T-Server
X-TimeS
X-Cache-Grace
GeoIP-Country-Code
ServerHost
X-Varnish-Beresp-TTL
W
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Yak-Timeinfo
X-DataCenter
X-Lb-Nocache
X-DynaTrace
From-Cache
X-ServedByHost
X-Air-Source
X-Air-Hostname
X-Air-Trace-Id
X-Wp-Cf-Super-Cache-Cache-Control
X-Aspnetmvc-Version
X-Oracle-DMS-ECID
X-Wp-Cf-Super-Cache
X-Via-Edge
X-MSEdge-Flight
Edge-Copy-Time
X-Via-CDN
X-MSEdge-Features
X-CACHE-KEY
X-CSRF-TOKEN
X-App
X-Via-SSL
X-Swift-Error
Expect-Ct
Cloudfront-Viewer-Country
X-Ha-Backend
X-Sorting-Hat-Shopid
X-Wp-Cf-Super-Cache-Cookies-Bypass
X-Sorting-Hat-Podid
X-Shardid
N1-Cache
X-LAGOON
X-Shopid
X-Wp-Cf-Super-Cache-Active
X-Via-PopH
X-Via-PopN
X-ByteArk-ReqID
X-Key
X-VServer
X-Jobs
Ohc-Cache-HIT
FSS-Cache
X-Geolocation
X-Proxy-Cache-LA2
X-Via-PopV
Req-ID
X-Zen-Fury
X-Ssense-Gql
X-NODE
X-Ramcache
X-ByteArk-Cache
Ohc-File-Size
X-Correlation-ID
X-Ssense-Shipping-Surcharge-Enabled
X-Geo
X-Check-Cacheable
X-Sucuri-Id
X-Elasticpress-Query
X-Cdn-Cache-Status
WP-Super-Cache
X-Webkit-Csp-Report-Only
Cl-Cache
Ngx
True-Client-IP
X-Web-Server
CF-Cached-On
X-Serial
X-PageType
X-ATG-Version
X-DC
Akamai-X-True-TTL
X-Cdn-Srv
WebServer
On-Server
X-Th-Server
X-Iplb-Instance
X-Iplb-Request-Id
Cf-Ipcountry
X-VTEX-Cache-Server
Warning
X-Beacon
X-VTEX-Cache-Time
X-MiniProfiler-Ids
X-Limited
X-Mg-Cache
My-App
Cneonction
Host-Name
X-Powered-By-VTEX-Cache
X-Env
User-Agent
X-Fastly-Cache-Status
Xkey-G-Jp
FSS-Proxy
X-Request-Url