Threat Level: green Handler on Duty: Johannes Ullrich

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