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
Content-Length
X-Frame-Options
Strict-Transport-Security
X-Content-Type-Options
Accept-Ranges
Last-Modified
CF-Cache-Status
Pragma
Link
CF-RAY
X-Powered-By
ETag
Expect-CT
X-XSS-Protection
Via
X-Cache
Age
Content-Security-Policy
Access-Control-Allow-Origin
Content-Language
P3P
X-UA-Compatible
X-Cache-Hits
X-Amz-Cf-Pop
X-Amz-Cf-Id
Referrer-Policy
X-Served-By
X-Xss-Protection
X-Varnish
X-Timer
Access-Control-Allow-Headers
Access-Control-Allow-Methods
Alt-Svc
X-Download-Options
X-Request-Id
X-AspNet-Version
Access-Control-Allow-Credentials
X-Runtime
X-FRAME-OPTIONS
X-Drupal-Cache
X-Request-ID
X-Adblock-Key
X-Check
X-Generator
Content-Security-Policy-Report-Only
X-Cache-Status
X-Permitted-Cross-Domain-Policies
X-Cacheable
X-DNS-Prefetch-Control
Timing-Allow-Origin
X-Iinfo
X-Template
X-Language
X-AspNetMvc-Version
Status
X-Content-Security-Policy
X-Buckets
Content-Encoding
Access-Control-Expose-Headers
X-CDN
Upgrade
Xkey
Access-Control-Max-Age
Keep-Alive
X-Drupal-Dynamic-Cache
X-Kinja-Server-Push
X-Turbo-Charged-By
CF-Ray
X-AH-Environment
X-Via
X-Age
X-Cache-Group
X-Pass-Why
X-Backend
X-Ua-Compatible
X-Envoy-Upstream-Service-Time
EagleId
X-Server
X-Robots-Tag
X-Amz-Request-Id
X-Amz-Id-2
X-Server-Powered-By
X-Page-Speed
X-Pingback
X-UA-Device
X-Proxy-Cache
X-Swift-CacheTime
X-Swift-SaveTime
X-Hacker
X-Nginx-Cache-Status
Request-Context
Ali-Swift-Global-Savetime
X-Varnish-Cache
Grace
Server-Timing
Feature-Policy
Cf-Railgun
X-Amz-Version-Id
X-LiteSpeed-Cache
X-Styx-Req-Id
X-Pantheon-Styx-Hostname
X-Device
X-WebKit-CSP
X-Server-Id
X-Rq
Report-To
EagleEye-TraceId
X-Response-Time
X-Host
X-Ac
X-OneAgent-JS-Injection
X-Ws-Request-Id
Request-Id
X-Cnection
X-Backend-Server
X-DataDome
Content-Location
X-Node
X-Origin-Cache
X-Cache-Lookup
NEL
X-Readtime
X-Cloud-Trace-Context
X-Dns-Prefetch-Control
X-Vhost
X-HW
X-Dispatcher
X-Application-Context
X-ORACLE-DMS-ECID
X-ORACLE-DMS-RID
P3p
X-Cdn
Allow
X-Clacks-Overhead
Surrogate-Control
X-EdgeConnect-Origin-MEX-Latency
X-EdgeConnect-MidMile-RTT
X-Rack-Cache
X-Origin-Upstream-Status
X-DynaTrace
Rating
X-Country
Fusion-Component-Id
Fusion-Content-Id
Fusion-Content-Source
Fusion-Source
Fusion-Template-Id
X-FTR-Request-ID
X-Akam-SW-Version
X-Country-Code
X-Goog-Hash
X-Varnish-TTL
X-Ruxit-JS-Agent
Pinterest-Generated-By
X-Instart-Request-ID
Edge-Control
X-TtlSet
X-Vname
X-PC
X-Url
X-Mod-Pagespeed
X-B3-TraceId
X-MS-InvokeApp
Verso
Accept-Ch
SPRequestGuid
X-Powered-By-Plesk
X-ESI
X-D2id
X-Trace
X-VARITI-CCR
X-Server-Name
X-SharePointHealthScore
X-GitHub-Request-Id
Service-Worker-Allowed
X-Sol
X-Middleton-Response
Response
Pagespeed
Display
X-Middleton-Display
X-Cdn-Fetch
X-Kinja-Revision
X-Kinja-Server
X-Use-Magma
X-Exp-Id
X-Kinja-Build
X-Exp-Variant
X-GoogleNews-Bot
X-Kinja
Content-MD5
RTSS
SPIisLatency
X-Navigation-Version
SPRequestDuration
X-TTL
X-Abt-Application-Version
X-Powered-CMS
X-Debug
Accept-Ch-Lifetime
X-Vcache
X-Forwarded-Proto
X-Upstream
X-Cached
X-Amz-Server-Side-Encryption
X-Vcap-Request-Id
Public-Key-Pins
Charset
X-CST
MS-Author-Via
X-Version
DynaTrace
X-NF-Request-ID
X-Amz-Rid
Realpath
Edge-Cache-Tag
X-Px
MicrosoftSharePointTeamServices
Arr-Disable-Session-Affinity
X-Shard
TCN
X-Trafficlayer-App-Name
X-Trafficlayer-App-Scope
X-Ezoic-Cdn
X-DynaTrace-JS-Agent
X-MSEdge-Ref
X-Shield-Request-Id
X-Pinterest-Rid
Pinterest-Version
Access-Control-Request-Method
X-Ser
X-SRCache-Store-Status
X-SRCache-Fetch-Status
X-Fastly-Request-ID
S
X-Accel-Expires
Fastly-Restarts
X-XRDS-Location
X-DIS-Request-ID
X-Server-ID
X-Client-IP
X-TEC-API-ORIGIN
X-TEC-API-VERSION
X-TEC-API-ROOT
X-Goog-Generation
Front-End-Https
X-Goog-Metageneration
X-Goog-Stored-Content-Encoding
X-Goog-Stored-Content-Length
X-Recruiting
X-Amz-Meta-S3cmd-Attrs
X-T
X-Id
X-Element-Page-Cache
X-Goog-Storage-Class
X-Varnish-Age
Nginx-Cache
X-Webapp-Samesite-None-Activated-N
X-FTR-Backend
X-Country-Code-Real
X-FTR-Backend-Server
X-FTR-Realm
X-FTR-DC
X-FTR-Cache-Status
X-FTR-Balancer
Cache-Tag
X-FTR-Expires
X-Amzn-Trace-Id
X-B3-TraceId-Primal
X-Mrf-Section-Lastmod
X-Mrf-Item-Lastmod
MRF-Tech
Mrf-Cache-Status
X-Dw-Request-Base-Id
X-Ttl
Fastcgi-Cache
X-Content-Digest
X-Frontend
X-HS-Content-Id
X-HS-Cache-Config
X-HS-Hub-Id
NR-ENABLED
Powered
X-Fastcgi-Cache
X-Hits
X-Correlation-Id
X-Hp-Webp
Alternate-Protocol
X-Kinsta-Cache
X-FTR-Cache-Host
X-Content-Type
X-Request-Processing-Time
X-Request-Received
ServerID
X-Aspnetmvc-Version
X-HS-Combine-CSS
X-Request-Handler-Origin-Region
X-Microsite
X-RateLimit-Remaining
X-N
Server-Name
X-Webkit-Csp
X-Grace
PB-RID
PB-PID
X-Cache-Hit
Arc-Version
X-Mobile-Rewrite
X-Rid
TP-L2-Cache
TP-Cache
Healthy
X-Node-Name
X-Akamai-Edgescape
X-User-Agent
X-Forwarded-For
X-Revision
X-Analytics
Backend-Timing
X-Content-Security-Policy-Report-Only
AMP-Access-Control-Allow-Source-Origin
X-Zen-Fury
X-Logged-In
X-Pad
X-Mobile-URL
X-LB-Cache
Server-Node
X-Amzn-RequestId
X-Amz-Apigw-Id
X-Varnish-Grace
X-Az
X-AppVersion
X-Activity-Id
X-GUploader-UploadID
X-Cached-By
Cache-Status
X-B3-Sampled
X-NWS-LOG-UUID
X-Content-Options
X-Oneagent-Js-Injection
Refresh
X-IPLB-Instance
X-F-Cache
X-FastCGI-Cache
Accept-CH
Accept-CH-Lifetime
X-Geo-Country
Upgrade-Insecure-Requests
Retry-After
X-Type
X-Ruxit-Js-Agent
X-Varnish-Backend
X-Tumblr-User
X-App-Environment
X-Tumblr-Pixel-0
FilterID
Paypal-Debug-Id
X-Tumblr-Pixel
X-FB-Debug
X-Cache-2
X-Request-Guid
X-Framework
DC
AR-ATIME
X-Cluster
X-Jobs
AR-CACHE
X-Instance
AR-PoweredBy
X-PHP-Backend
Source
Actual-Object-TTL
Host
X-Debug-Info
X-Page-Id
Accept-Charset
Access-Control-Allow-Method
X-WebKit-CSP-Report-Only
X-AOL-HN
X-Litespeed-Cache
X-B
X-Srv
X-Erf-Bev-Bev
X-Erf-Bev-Bev-Is-Generated
X-ATG-Version
X-Cache-Age
X-TT
Cache
Fastcgi-Useragent
X-Seen-By
X-Cache-Key
Ar-Sid
MS-CV
X-Git-Hash
X-Via-JSL
X-PressLabs-Stats
X-Content-Powered-By
VIX-Pulpo-Upstream-Status
X-Cache-TTL
VIX-Pulpo-Node
X-Amz-Replication-Status
X-Whom
X-B-Cache
X-Signature
Host-Header
X-Cache-Control
X-Wix-Request-Id
X-Daa-Tunnel
X-Origin-Server
X-Response-Served-From
Surrogate-Key
NGB
X-UA
X-Cache-Enabled
X-Mobile
X-RequestSource
X-Host-Name
X-GeoIP
X-Tumblr-Pixel-2
X-Tumblr-Pixel-1
Cache-Tv-Group
Eomportal-Instance
X-FW-Hash
Filters
Payment
X-FW-Serve
X-Hyper-Cache
WPE-Backend
X-FW-Static
X-Handled-By
X-FW-Server
X-FW-Type
Cleartype
X-EdgeConnect-Cache-Status
X-Cacheable-TTL
X-Region
Xserver
AR-Request-ID
X-ATS-Timestamp
X-Cache-NE
X-Adobe-Loc
X-TX-ID
X-Drupal-Cache-Tags
Frame-Options
X-TA-CDN-Provider
X-Adobe-Content
X-Cache-Action
Webserver
Datacenter
X-Kong-Proxy-Latency
X-Kong-Upstream-Latency
X-Hostname
X-Cache-Operation
X-Cache-Rule
X-SERVER
X-Load-Cache
From-Origin
X-NewRelic-App-Data
X-Akamai-Transformed
X-Esi
X-ProcessESI
X-RemovedCookies
X-Edge-Location
X-UA-Device-Type
X-Cache-TTL-Remaining
Liferay-Portal
Ms-Operation-Id
X-RTag
X-Forwarded-Host
X-Cache-Server
X-Varnish-Hostname
X-Varnish-Server
X-Oss-Server-Time
X-Oss-Storage-Class
X-Status
X-Oss-Request-Id
X-Yottaa-Optimizations
X-Oss-Hash-Crc64ecma
X-Rule
X-Yottaa-Metrics
X-Oss-Object-Type
X-ORACLE-APMCS-TAG
X-ORACLE-APMCS-REQUEST-ID
X-XRDS-LOCATION
X-App-Server
X-Contextid
Country
Odigeo-Trace-Id
X-Upgrade-Enabled
X-UUID
X-VCache
X-Time
X-TT-TIMESTAMP
Load-Balancing
X-Cache-Var
X-BCube-Filmed-By
X-Cache-Var-Map
X-ES-SERVER
X-RN-RSRV
X-Path-Route
Meta-Geo
DSUID
Webcakes-App-Name
TWC-Privacy
Webcakes-App-Version
Webcakes-Region
TWC-Locale-Group
X-Debug-Cache
TWC-GeoIP-Country
Property-Id
Mn-Server-Ip
X-R9-Blue-Green-Version
Release
TWC-Connection-Speed
X-Origin-Hint
TWC-Device-Class
TWC-GeoIP-LatLong
X-CCM
X-Rocket-Nginx-Bypass
X-VCT
X-From
Selected-Fe
X-Vgn-Hpd-Reason
X-EIG-Tracking-Id
S-Rt
X-Proxy-Build
X-Cache-Config
X-Akamai-Request-ID
X-Pubstack
X-Hosted-By
Azure-InstanceId
Azure-RegionName
Azure-SiteName
Azure-Version
X-TNCMS
Azure-SlotName
X-Real-IP
Cache-Name
Cache-Tags
DB-Nickname
X-PCL
X-Proto
X-Proxy
L5d-Success-Class
X-IP
X-Origin-Response-Time
X-Loop
X-OCL
X-Soup
X-Timing-Wait
X-FC-Vary-Parameters
X-Via-Fastly
X-FW-Dynamic
X-Human
X-Drupal-Cache-Contexts
Fastly-SSL
X-Viewer-Country
X-Redis-Cache
X-Site-Version
X-Section
X-Web-Node
X-Generated
Origin-Cache-Control
X-ServerID
X-Content-Age
X-Backend-Name
X-Xfnlog-Site
X-Format
X-Locale
X-Www-Served-By
X-Akamai-Request-ID2
X-Access
Viewport
X-Cache-Time
X-Cache-Host
Origin-Edge-Control
X-FireWall-Port
X-Origin
X-Goog-Meta-Goog-Reserved-File-Mtime
NGX
Ec-Rule-Version
Tracecode
X-JoinUs
X-Is-Bot
X-Cluster-Name
X-Labrador-Cache-Channel
X-NWS-UUID-VERIFY
X-Rendered-As
X-ProxyCache-Status
X-ProxyCache-Key
X-BYPASS-REASON
Uber-Trace-Id
Server-Info
X-Varnish-Cache-Hits
Decoy-Debug-TTL
Decoy-Debug-Status
S-Cnection
Decoy-Debug-Key
X-Time-Microsecs
Version
X-Accel-Buffering
X-Varnish-Hits
X-Generated-By
X-PERF
X-ApacheServer
X-Cache-Backend
X-Info
X-Storage
X-Amzn-Remapped-Content-Length
X-PHP-Host
X-Tec-Api-Origin
X-Tec-Api-Version
X-Tec-Api-Root
X-Origin-TTL
X-Origin-CC
Akamai-GRN
X-App-Version
Rt-Fastcgi-Cache
X-SaId
X-WA-Info
X-Geo
X-Nginx-Cache-Key
X-URL
X-CF-Powered-By
Cteonnt-Length
X-Presslabs-Stats
Cache-Key
Time
X-MServer
X-No-Session
Origin
X-Environment-Context
X-Unique-Id
X-L-Path
GEO-INFO
X-RateLimit-Limit
X-Backend-TTL
X-Guploader-Uploadid
X-Cache-Remote
X-GoCache-CacheStatus
Access-Control-Request-Headers
X-FB-TRIP-ID
Accept-Language
X-Tb
X-CDN-Forward
X-NCache
X-Say-Cacheable
X-SayCDN-TTL
X-Hit
X-Say-TTL
Vix-Hermes-Req-Id
Cache-Hits
X-APP-VERSION
X-CACHE-KEY
X-B3-SpanId
X-Trace-Id
Srv
X-Device-Type
X-Alternate-Cache-Key
X-Shopify-Stage
X-Shopify-Generated-Cart-Token
X-SS-Set-Cookie
X-Sorting-Hat-PodId
X-EC-Lua
X-ShopId
X-Sorting-Hat-ShopId
X-ShardId
X-Tumblr-Pixel-3
X-CS
X-B3-Traceid
X-RCS-CacheZone
X-OVcl-Cache
X-Source
X-SRV
X-OVcl
Mime-Version
X-S
OT-Force-Account-Verify
X-Cluster-Node
Meta-Geo-Continent
Mobile-Detection-Method
MD5-Digest
Machine
X-Twitter-Response-Tags
Apple-News-Services-Request-Url
Node
X-Vdms-Version
Apple-News-Services-Parsed-Url
Xc-Version
Apple-News-Services-Handled
Arc-Country
AsisCache
Fastcgi-X-Cache-Version
IsBot
Cross-Origin-Window-Policy
Apple-News-Services-Host
Content-Style-Type
X-Magnolia-Registration
X-Endurance-Cache-Level
BehaviorPad-Version
X-Session-Fingerprint
Content-Script-Type
X-VG-WebCache
X-VG-WebServer
X-A-Ccd
X-Destination
X-S-Cookie
X-Detected-As
X-Vtex-Processado-Em
X-Svr
X-Date
X-CF-Lambda-Version
X-Connection-Hash
X-D
X-Transaction
X-DPWN-IS-SECURE
X-Rojux
X-Region-Sid
X-Request-UUID
X-Rewrite-Enabled
X-SIPLIST1
X-Processor
X-PAYTM-SRV-ID
X-External-Request-Id
X-SRCache-Key
X-G
X-Hl-Ver
X-CF-Lambda-Fn
X-B-Cookie
Viewtype
VivaBuild
X-A
X-Vtex-Remote-Cache
T-Server
Server-Host
Rendered-Blocks
Request-Country
Request-EU
Rt-Proxy-Cache
X-A-Dam
X-A-Dcw
X-Trv-Group
X-Aed
X-AIR-PT
X-Application
X-ScT
X-Server-Time
X-A-Dgt
X-A-Wwc
X-Accel-Expires-Debug
X-Service
X-ARC
User-Cache-Control
X-CSRF-TOKEN
X-Dc
X-Parent-Response-Time
ServedBy
X-TIME
ServerName
X-CUA
X-Core-Value
X-Thinkindot-L3
X-Reboot
X-Cache-Bucket
NtCoent-Length
X-Location
X-Webstats-RespID
X-Ah-Environment
X-Upstream-Ct
X-Via-NSCOPI
Wxu-Next-Region
X-Matched-Rule
X-Upstream-Ht
X-Level-Front-Cache
Now
Server-Int
X-Instart-Isnd
Wxu-Next-Hostname
X-IN-APIGATEWAY
Served-By
Wxu-Next-Commit
X-Hash
X-Dispatch
X-Generated-On
X-IN-APIGATEWAYSSL
Thinkindot-Control
Thinkindot-CacheControl-Type
Thinkindot-CacheControl
X-Cache-Grace
Proxy-Connection
X-Uri
X-Origin-Expires
W
Web-Mar-Node
X-RateLimit-Remaining-Second
X-Release
X-Auto-Login
X-Origin-Date
X-Reqid
X-Azure-Ref-OriginShield
X-Azure-Ref
X-RateLimit-Limit-Second
X-Qloud-Router
X-Planisys-CDN-Rules
X-Agile
X-Planisys-CDN-TTL
X-Agile-Age
X-Proxy-Cache-Status
X-Planisys-CDN-Cache
X-Proxy-Upstream
X-B3-Parentspanid
X-App-Name
X-Agile-Id
X-Cache-URL
X-JWT-State
X-Is-Gdpr
X-Developers
X-Key
X-Debug-Log
X-Debug-Cache-Fetch
X-Debug-Cache-Store
X-Debug-Cookies
X-Irp-Debug
X-Distil-CS
X-GeoIP-City
X-Gen-Mode
X-Generation-Time
X-FW-Version
X-Has-Esi
X-Eu-Site
X-Hnp-Log
X-Fastly-Cache
X-Debug-Cache-Expiry
X-Core-Mission
X-Cache-Debug
X-Cache-Info
X-Ms-Version
X-C
X-Block-Status
X-Backend-State
X-BBXSRF
X-Bip
X-Ms-Request-Id
X-Cdn-Srv
X-Cms-Context
X-Compress-Hint
X-Logging-Id
X-Clientip
X-Clara-WADP
X-Method
X-CGP
X-NX-Host
X-Server-IP
X-VG-TLSProxy
X-VC-Cache
X-Rocket-Build-Number
X-WADP-Cache
Fastly-Soc-X-Request-Id
X-User
Gh-Request-Id
IBM-Web2-Location
L
Heartbleed
HA-Ipaddr
Ha-Gx-Prefs
X-We-Are-Hiring
Esi-Enabled
We-Hiring
Mail-Subject
X-Dispatcher-Server
AKAMAI
X-ND-Cache
Cache-Host
CDCHOST
Countrycode
X-Wikidot-Backend
Content-Disposition
X-Wikidot-Static-Cache
X-Up
X-VServer
Pramga
X-Sigma-Backend
X-Skip-Cache
PFcat
X-Sucuri-Cache
X-Sigma
X-TrackingId
X-Scheme
X-Geo-Header
Section-Io-Cache
RNT-Time
X-SVT-ORM-RULES
RNT-Machine
Memcached
X-SVT-ORM-VERSION
X-Thanos
Magicmarker
Cache-Provider
X-Distributor
X-Old-Content-Length
X-LI-UUID
X-Internal-Host
X-Epic-Correlation-Id
X-Owner
X-Li-Pop
X-Li-Fabric
X-Request-URI
X-WebServer
X-Generated-In
X-NC
X-Variation
X-SD-PageType
X-Request-Start
X-S-Maxage
X-Platform-Server
Kp-EeAlive
Adler-Geo
Platform
X-Varnish-Beresp-Status
X-Varnish-Beresp-Ttl
X-Swa-Ws
X-Policy
SD-X-WS
Is-Eu
X-Varnish-Beresp-Grace
X-Cache-FS-Status
X-Amz-Meta-Cache-Control
X-Nc
X-Via-CDN
Server-ID
X-Urbn-Site-Id
X-Urbn-Context-Path
X-MSEdge-Flight
X-Cache-Id
X-LI-Proto
X-ServiceProvider
X-NodeID
X-Trafficlayer-App-Version
X-MSEdge-Features
True-Client-Country-4JS
Locale
X-AK-Request-ID
Cdnsip
Cdncip
X-Servername
CF-IPCountry
Powered-By-ChinaCache
V-Age
Environment
X-B3-Spanid
Locid
X-Served-From
Hostname
X-Be
GEO-REGION-INFO
X-Req
X-Lb-Id
X-Cdn-Forward
X-GRACE
X-Newrelic-Synthetics
X-UnsetCookies
X-Sucuri-Id
X-HTML-Minification-Powered-By
X-FPC
FNAC-ModuleRouting
X-7Graus-Varnish-XKeys
X-Gamma-Serve
X-Refresh
X-7Graus-Varnish-Cache-Control
X-Nginx-Cache
Geo-Info
X-Zone
X-IPS-LoggedIn
X-VHOST
X-Render-Time
X-Developer
A
X-Servedbyhost
X-Cdn-Origin
X-Microcachable
X-Tb-Optimization-Total-Bytes-Saved
X-Sucuri-ID
X-Sn-Servicetimems
ProcessTime
Tcn
X-Device-Os
X-NU-AKA-ACS-Version
X-MP-GENERATED-AT
X-Edge-O15-RID
X-Webkit-CSP
X-Mode
X-Node-Id
X-GeoIP-Country-Code
X-Pjax-Url
X-Ratelimit-Remaining
X-AWS-Id
X-DC
Memory
X-LJ-Flow-ID
X-VWS-Id
Request-Time
X-Pf-Uncompressing
X-FORWARDED-FOR
X-Routing-Service
X-Zipkin-Id
X-Proxied
X-VCL-Version
Gannett-Cam-Experience-Id
X-COUNTRY
X-Correlation-ID
Geoip-Latitude
Pics-Label
TTL
Amp-Access-Control-Allow-Source-Origin
GeoIp-Country-Code
Resin-Trace
X-CSRF-Token
XServer
CF-Cached-On
PICS-Label
Group
Cache-Cookie-Set-From
X-Pod
GeoIP-Country-Code
Cache-Cookie-Set-Idcheck
Cf-Ipcountry
Cache-Cookie-Set-Lfrom
GeoIP-Latitude
X-Instart-Info
GeoIP-City
MIME-Version
X-Bc
X-ZONE
HostName
M-TraceId
X-ElasticPress-Search
X-Via-SSL
X-Via-Edge
X-ECACHE
Cdn
Geoip-City
X-Unique-ID
X-Ratelimit-Limit
X-Request-Time
Ttl
Host-ID
X-Backend-Url
X-NODE
X-Cdn-Request-ID
X-Vcl-Version
X-Var-Ttl
X-Backend-Host
X-Swift-Error
X-CLOUD-TRACE-CONTEXT
Backend-Name
X-APP
Ohc-File-Size
Ohc-Cache-HIT
X-PF-Uncompressing
X-TH-Server
X-BC
X-NGINX-Cache
X-NGENIX-Cache
N-Cache
HitType
Pagetype
Lfy
REQUESTUUID
X-Check-Cacheable
X-UPSTREAM-Address
X-Dynatrace-Js-Agent
X-PJAX-URL
Powered-By
Fly-Request-Id
Cache-Prefix
X-Fstrz
Fly-Cache
URI
X-Fastly-Country-Code
Media-Length
User-Agent
X-Tt-Trace-Tag
On-Server
X-Worker
X-Via-Ucdn
X-HostName
X-ServedByHost
X-Aicache-OS
X-Cache-Tag
X-Cache-Miss-From
X-Sedo-Request-Id
Pragrma
CDN
X-WR-MODIFICATION
X-LiteSpeed-Cache-Control
SRV
FSS-Cache
X-GEO
Who
X-Tt-Trace-Host
X-HS-Status
X-Server-W
X-WA
FSS-Proxy
X-Fetched-On
X-Hp-Ccpa-Warning
AR-SID
X-Rebelmouse-Surrogate-Control
Fastly-SWR
UCS
X-BE
Fastly-SIE
X-Rebelmouse-Cache-Control
X-Wa
X-Upstream-HT
X-Upstream-CT
X-NYM-Debug-Backend
X-LB-ID
Processtime
X-Cache-Tags
X-Fpc
X-LAGOON
X-Varnish-URL
X-Varnish-Cacheable
X-Cf-Powered-By
Debug
X-Fastly-Backend-Reqs
X-Varnish-Beresp-TTL
X-Cache-ASPX
X-Contensis-Viewer-Groups
X-ServerName
X-Store
Server-Surrogate-Control
X-Varnish-Authentication
Server-Cache-Control
X-TT-LOGID
X-Ftr-Cache-Host
X-Ua
X-GDPR
X-Apw-Access-Action
X-Apw-Access-Object
X-Apw-Access-Token
X-Akamai-ERPolicy
Location
X-Apw-Hits
Fastly-Backend-Name
Server-Id
Country-Code
X-Protected-By
X-Akamai-ERRuleID
DataCenter
WP-Super-Cache
Xet-Cookie
X-VC
X-SB
X-Edge-Server
Cdn-Host
Cdn-Request-Time
SID
X-Li-Proto
Thinkindot-Cache-Type
X-Amzn-Remapped-Date
X-Amzn-Remapped-Connection
X-Dw-Trace-Id
X-Gen-Id
X-Fastly-Cache-Hits
NnCoection
X-Nananana
XxX-Cache-Status
X-SN
X-Request-Url
Application
Product
Cneonction