Threat Level: green Handler on Duty: Guy Bruneau

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