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
Content-Length
X-Frame-Options
Strict-Transport-Security
X-Content-Type-Options
Accept-Ranges
Last-Modified
X-Powered-By
Pragma
CF-Cache-Status
Link
ETag
Expect-CT
Via
Age
X-Cache
X-XSS-Protection
CF-RAY
Content-Security-Policy
Access-Control-Allow-Origin
Content-Language
X-Xss-Protection
P3P
X-Cache-Hits
X-Amz-Cf-Pop
Referrer-Policy
X-Amz-Cf-Id
CF-Ray
X-UA-Compatible
X-Served-By
Alt-Svc
X-Request-Id
X-Varnish
X-Timer
Access-Control-Allow-Headers
X-FRAME-OPTIONS
Access-Control-Allow-Methods
X-Download-Options
X-AspNet-Version
Access-Control-Allow-Credentials
X-Runtime
X-Drupal-Cache
X-Check
X-Adblock-Key
Content-Security-Policy-Report-Only
X-DNS-Prefetch-Control
X-Cacheable
X-Permitted-Cross-Domain-Policies
X-Cache-Status
X-Generator
Timing-Allow-Origin
X-Iinfo
X-Template
X-Language
X-AspNetMvc-Version
Status
Upgrade
X-Ua-Compatible
X-CDN
X-Content-Security-Policy
X-Buckets
Content-Encoding
Access-Control-Expose-Headers
P3p
Access-Control-Max-Age
X-Kinja-Server-Push
X-Via
Keep-Alive
X-Turbo-Charged-By
X-Drupal-Dynamic-Cache
X-AH-Environment
X-Envoy-Upstream-Service-Time
X-Pass-Why
X-Cache-Group
X-Server
X-Ws-Request-Id
X-Backend
X-Age
EagleId
X-Proxy-Cache
X-Amz-Request-Id
X-Amz-Id-2
X-Robots-Tag
Xkey
X-Page-Speed
X-Hacker
X-Request-ID
X-Pingback
Server-Timing
X-Server-Powered-By
Feature-Policy
X-Swift-CacheTime
X-Swift-SaveTime
Ali-Swift-Global-Savetime
Request-Context
X-Nginx-Cache-Status
X-Varnish-Cache
Grace
X-UA-Device
Cf-Railgun
X-Amz-Version-Id
Report-To
X-OneAgent-JS-Injection
X-LiteSpeed-Cache
X-Rq
X-Device
X-Server-Id
X-Origin-Cache
X-Styx-Req-Id
X-Pantheon-Styx-Hostname
EagleEye-TraceId
X-Backend-Server
X-Host
X-Node
X-Vhost
X-Response-Time
NEL
X-Dispatcher
X-Cache-Lookup
X-Ac
X-WebKit-CSP
X-Readtime
Surrogate-Control
X-Origin-Upstream-Status
Content-Location
Request-Id
X-Ruxit-JS-Agent
X-Application-Context
Fusion-Component-Id
Fusion-Content-Source
Fusion-Template-Id
Fusion-Content-Id
Fusion-Source
X-HW
X-ORACLE-DMS-ECID
X-Cnection
X-ORACLE-DMS-RID
X-Country
X-Cloud-Trace-Context
X-Mod-Pagespeed
X-DataDome
X-Akam-SW-Version
X-Url
Edge-Control
X-Rack-Cache
Rating
X-Clacks-Overhead
RTSS
X-EdgeConnect-Origin-MEX-Latency
X-EdgeConnect-MidMile-RTT
X-FTR-Request-ID
X-PC
X-Vname
X-TtlSet
X-Goog-Hash
X-Varnish-TTL
X-DynaTrace
X-Country-Code
X-Instart-Request-ID
Allow
X-ASPNET-VERSION
Content-MD5
Service-Worker-Allowed
Verso
X-GitHub-Request-Id
X-ESI
X-Server-Name
Pinterest-Generated-By
X-D2id
X-Kinja-Build
X-Kinja-Revision
X-Kinja-Server
X-Kinja
X-Use-Magma
X-GoogleNews-Bot
X-Cdn-Fetch
X-Exp-Id
X-Exp-Variant
X-MS-InvokeApp
X-Webkit-Csp
SPRequestGuid
X-Cached
X-Vcache
Accept-Ch
X-Navigation-Version
X-Powered-By-Plesk
X-Forwarded-Proto
X-Debug
X-Amz-Server-Side-Encryption
X-Abt-Application-Version
X-B3-TraceId
X-Amz-Rid
X-Fastly-Request-ID
X-Trace
X-SharePointHealthScore
Public-Key-Pins
X-MSEdge-Ref
Nginx-Cache
X-Vcap-Request-Id
X-VARITI-CCR
X-TEC-API-VERSION
X-TEC-API-ORIGIN
X-TEC-API-ROOT
Accept-Ch-Lifetime
X-Server-ID
MS-Author-Via
TCN
Arr-Disable-Session-Affinity
Charset
X-Px
Fusion-Deployment-Id
X-Accel-Expires
X-NF-Request-ID
X-Cache-TTL
Edge-Cache-Tag
SPIisLatency
SPRequestDuration
Response
X-Middleton-Display
Realpath
Pagespeed
Display
X-Middleton-Response
X-Fastcgi-Cache
X-Sol
X-Content-Type
X-Ttl
X-Ser
X-Version
X-Client-IP
Cache-Tag
X-SRCache-Store-Status
X-SRCache-Fetch-Status
X-DynaTrace-JS-Agent
X-Pinterest-Rid
Pinterest-Version
X-Powered-CMS
Front-End-Https
AR-PoweredBy
AR-ATIME
AR-Request-ID
Access-Control-Request-Method
NR-ENABLED
X-Id
X-Grace
X-Jurisdiction
X-Hp-Webp
X-Upstream
X-Forwarded-For
X-Dns-Prefetch-Control
Accept-CH
MRF-Tech
Mrf-Cache-Status
X-Mrf-Item-Lastmod
S
X-B3-TraceId-Primal
X-Mrf-Section-Lastmod
X-T
X-Content-Digest
X-Hits
X-Element-Page-Cache
DynaTrace
AR-CACHE
Ar-Sid
X-Amz-Meta-S3cmd-Attrs
X-Dw-Request-Base-Id
Fastcgi-Cache
X-TTL
ServerID
X-Mobile-URL
Accept-CH-Lifetime
X-Node-Name
X-Cache-Hit
PB-PID
PB-RID
X-FTR-Balancer
X-FTR-Realm
X-FTR-Cache-Status
X-FTR-DC
X-FTR-Backend-Server
X-Country-Code-Real
X-FTR-Backend
X-Amzn-Trace-Id
X-Goog-Storage-Class
X-Goog-Stored-Content-Encoding
X-Goog-Metageneration
X-Goog-Generation
X-Goog-Stored-Content-Length
X-GUploader-UploadID
Arc-Version
Server-Node
Powered
X-Recruiting
X-Mobile-Rewrite
X-HS-Hub-Id
X-HS-Cache-Config
X-HS-Content-Id
X-Frontend
X-FTR-Expires
TP-L2-Cache
TP-Cache
X-Shield-Request-Id
X-Ezoic-Cdn
X-Shard
AMP-Access-Control-Allow-Source-Origin
X-DIS-Request-ID
Upgrade-Insecure-Requests
X-XRDS-LOCATION
X-Request-Received
X-NWS-LOG-UUID
Fastly-Restarts
X-Request-Processing-Time
X-HS-Combine-CSS
WPE-Backend
Alternate-Protocol
Refresh
X-Logged-In
X-Varnish-Age
X-Request-Handler-Origin-Region
X-Microsite
Server-Name
X-FTR-Cache-Host
X-Correlation-Id
X-B
X-Akamai-Edgescape
X-LB-Cache
X-Page-Id
X-F-Cache
MicrosoftSharePointTeamServices
X-Rid
Backend-Timing
X-ATS-Timestamp
X-Geo-Country
X-User-Agent
X-Content-Security-Policy-Report-Only
X-N
X-Via-JSL
Host
X-Kong-Proxy-Latency
X-Kong-Upstream-Latency
Host-Header
X-Zen-Fury
Cache-Status
X-XRDS-Location
X-Origin-Server
X-ORACLE-APMCS-TAG
X-ORACLE-APMCS-REQUEST-ID
X-Content-Options
X-Varnish-Grace
X-B3-Sampled
X-Kinsta-Cache
X-Revision
X-TT
X-AOL-HN
X-Amz-Apigw-Id
Actual-Object-TTL
X-Tumblr-User
X-Type
X-Amz-Replication-Status
X-Tumblr-Pixel-0
X-Tumblr-Pixel
Paypal-Debug-Id
X-B-Cache
X-App-Environment
X-FB-Debug
X-Request-Guid
X-ATG-Version
X-Jobs
X-Signature
X-Instance
Access-Control-Allow-Method
X-Git-Hash
X-Varnish-Backend
X-Cache-Action
Healthy
Fastcgi-Useragent
X-Content-Powered-By
X-Debug-Info
X-WebKit-CSP-Report-Only
Frame-Options
X-Whom
Section-Io-Cache
Liferay-Portal
X-Tt-Trace-Tag
X-Tt-Trace-Host
X-Cluster
X-Srv
X-Seen-By
X-Cache-Rule
X-Daa-Tunnel
X-Hostname
X-Cache-Operation
X-Activity-Id
X-AppVersion
X-Az
X-PHP-Backend
X-Cached-By
X-Erf-Bev-Bev
X-Erf-Bev-Bev-Is-Generated
X-FireWall-Port
X-Cache-Age
X-Endurance-Cache-Level
X-Cache-Key
Tracecode
X-Framework
X-WA-Info
X-Contextid
X-Mobile
X-Amzn-Requestid
Retry-After
X-FastCGI-Cache
Xserver
X-Host-Name
X-IPLB-Instance
X-Accel-Buffering
X-CST
NGB
Source
X-Response-Served-From
X-ProcessESI
X-Presslabs-Stats
X-Upgrade-Enabled
X-RemovedCookies
Accept-Charset
Eomportal-Instance
Surrogate-Key
Payment
Filters
DC
X-Cache-NE
X-GeoIP
X-FW-Type
X-Is-Bot
X-FW-Static
X-FW-Server
X-Adobe-Loc
X-FW-Hash
X-FW-Serve
X-Adobe-Content
X-RequestSource
X-Tumblr-Pixel-1
X-Tumblr-Pixel-2
X-Varnish-Hostname
X-Rendered-As
X-Environment-Context
X-Origin-Response-Time
X-Cacheable-TTL
X-UUID
X-Varnish-Server
X-L-Path
X-Handled-By
X-Region
Srv
Trailer
From-Origin
X-UA-Device-Type
X-RateLimit-Remaining
X-EdgeConnect-Cache-Status
X-Cache-TTL-Remaining
X-Proxy
Server-Info
X-Cache-2
X-Backend-Name
X-Time-Microsecs
X-Wix-Request-Id
X-Cache-Server
Cache-Tv-Group
VIX-Pulpo-Upstream-Status
MS-CV
VIX-Pulpo-Node
X-Oss-Hash-Crc64ecma
X-Oss-Request-Id
X-Oss-Storage-Class
X-APP-VERSION
X-Oss-Object-Type
X-Oss-Server-Time
X-NGENIX-Cache
X-Akamai-Transformed
Datacenter
X-Cache-Enabled
Version
X-Status
X-TIME
X-Dc
S-Cnection
X-Mode
X-Yottaa-Optimizations
X-Yottaa-Metrics
X-Path-Route
X-ES-SERVER
Meta-Geo
X-CCM
X-Unique-Id
X-Edge-O15-RID
X-IPS-LoggedIn
X-Cache-Var
X-Cache-Var-Map
X-Cache-Time
FilterID
X-RN-RSRV
X-Pad
X-Cache-Control
X-TX-ID
X-Via-Fastly
X-Cache-Status-Check
Decoy-Debug-TTL
Cleartype
X-Hl-Ver
Decoy-Debug-Status
X-R9-Blue-Green-Version
Decoy-Debug-Key
GEO-INFO
X-Forwarded-Host
Country
Cache-Tags
X-AWS-Id
X-Sorting-Hat-PodId
X-Shopify-Stage
X-Shopify-Generated-Cart-Token
X-Sorting-Hat-ShopId
X-Varnish-Hits
X-FC-Vary-Parameters
X-VWS-Id
X-Vgn-Hpd-Reason
X-FW-Dynamic
X-ShopId
X-Proto
X-PERF
X-Origin-Hint
X-Redis-Cache
X-Origin
X-ShardId
X-ServerID
X-LJ-Flow-ID
X-EIG-Tracking-Id
X-Device-Type
TWC-Connection-Speed
TWC-Device-Class
TWC-GeoIP-Country
ServedBy
Property-Id
Now
Origin-Cache-Control
OT-Force-Account-Verify
TWC-GeoIP-LatLong
TWC-Locale-Group
X-Alternate-Cache-Key
X-ApacheServer
X-Debug-Cache
X-Akamai-Request-ID2
Webcakes-Region
TWC-Privacy
Webcakes-App-Name
Webcakes-App-Version
DB-Nickname
Origin-Edge-Control
X-B3-Traceid
Ec-Rule-Version
X-Proxied
X-NCache
X-Loop
Mn-Server-Ip
X-Proxy-Build
X-Proxy-Cache-Status
X-ProxyCache-Status
X-Pubstack
Webserver
X-ProxyCache-Key
Cross-Origin-Window-Policy
X-Locale
X-JoinUs
X-Content-Age
X-Detected-As
X-BYPASS-REASON
X-Amzn-Remapped-Content-Length
X-Access
Selected-Fe
X-Format
X-Human
X-IP
X-Hosted-By
X-Goog-Meta-Goog-Reserved-File-Mtime
X-Generated
NGX
Content-Disposition
X-Tb
X-Soup
X-Site-Version
X-SaId
X-Timing-Wait
X-TNCMS
X-Zipkin-Id
X-Xfnlog-Site
X-Www-Served-By
X-Routing-Service
X-Section
Azure-RegionName
Azure-SlotName
Akamai-GRN
Azure-SiteName
Azure-Version
Azure-InstanceId
X-RCS-CacheZone
X-Web-Node
Filterid
X-Akamai-Request-ID
X-Cache-Config
X-FB-TRIP-ID
X-Ua-Device
X-Say-TTL
X-Say-Cacheable
X-SayCDN-TTL
Cache-Key
S-Rt
X-MP-GENERATED-AT
X-NYM-Debug-Backend
Access-Control-Request-Headers
X-Request-Time
X-Viewer-Country
X-Generated-By
X-Cache-Remote
X-NewRelic-App-Data
X-BCube-Filmed-By
X-PressLabs-Stats
X-Real-IP
X-HTML-Minification-Powered-By
Section-Io-Origin-Status
Section-Io-Id
Section-Io-Origin-Time-Seconds
Section-Origin-Responded
Node
X-Cdn
Cache-Hits
X-CACHE-KEY
X-SS-Set-Cookie
X-Amzn-RequestId
X-EC-Lua
X-Adobe-Source
X-Geo
X-Rule
Odigeo-Trace-Id
Accept-Language
X-Microcachable
X-Drupal-Cache-Tags
Nel
X-No-Session
X-App-Server
X-Uri
X-PCL
X-RTag
X-Qloud-Router
X-OCL
Ms-Operation-Id
X-NWS-UUID-VERIFY
Cf-Ipcountry
X-From
X-Azure-Ref
X-Source
Time
X-Varnish-Cache-Hits
User-Agent
X-Esi
X-UA
X-Hyper-Cache
X-Cache-NGX
X-CF-Powered-By
X-RateLimit-Limit
X-Labrador-Cache-Channel
X-PHP-Host
X-Info
Proxy-Connection
X-Storage
X-Time
X-Backend-TTL
X-Nc
X-Old-Content-Length
X-Newrelic-Synthetics
X-GoCache-CacheStatus
Cache-Name
X-Cluster-Node
X-Cache-Grace
X-Nginx-Cache
AsisCache
X-DPWN-IS-SECURE
Xc-Version
BehaviorPad-Version
X-Vtex-Remote-Cache
Arc-Country
X-ARC
Content-Script-Type
X-Vtex-Processado-Em
X-Application
X-Accel-Expires-Debug
X-CF-Lambda-Fn
X-Developer
A
Apple-News-Services-Handled
Uber-Trace-Id
X-Connection-Hash
X-D
X-Drupal-Cache-Contexts
Apple-News-Services-Host
X-CF-Lambda-Version
X-Cdn-Srv
X-B-Cookie
X-Date
X-Destination
Content-Style-Type
Apple-News-Services-Parsed-Url
Apple-News-Services-Request-Url
GEO-REGION-INFO
X-ScT
X-S-Cookie
X-S
X-Rojux
X-OVcl-Cache
X-A-Dam
X-GeoIP-Country-Code
X-Session-Fingerprint
X-OVcl
T-Server
True-Client-Country-4JS
X-Request-UUID
X-Region-Sid
X-Processor
X-Rewrite-Enabled
X-A
X-PAYTM-SRV-ID
Viewtype
VivaBuild
ServerName
X-SRCache-Key
Machine
MD5-Digest
X-Vdms-Version
Meta-Geo-Continent
X-A-Wwc
X-External-Request-Id
X-VG-WebServer
X-VG-WebCache
X-A-Ccd
Mobile-Detection-Method
Rendered-Blocks
X-Trv-Group
X-Transaction
X-A-Dcw
X-A-Dgt
X-Twitter-Response-Tags
Request-Country
Request-EU
X-G
Fastcgi-X-Cache-Version
X-Aed
X-Load-Cache
X-Varnish-Beresp-Grace
X-Varnish-Beresp-Status
X-Magnolia-Registration
X-Cluster-Name
X-CS
X-Rocket-Nginx-Bypass
X-Request-URI
Server-Host
X-Sn-Servicetimems
X-Cache-Expired-At
X-Reboot
X-Cdn-Origin
PFcat
X-GeoIP-City
X-Geo-Header
X-Generated-On
Rt-Fastcgi-Cache
X-IN-APIGATEWAY
Powered-By-ChinaCache
X-Level-Front-Cache
X-IN-APIGATEWAYSSL
X-Core-Value
X-Served-From
X-Trafficlayer-App-Scope
X-VG-TLSProxy
X-Edge-Location
X-Trafficlayer-App-Name
X-Trafficlayer-App-Version
Viewport
X-S-Maxage
X-UnsetCookies
Geo-Info
User-Cache-Control
X-Dispatch
X-Auto-Login
X-Distributor
X-Distil-CS
X-Device-Os
X-Dispatcher-Server
X-Eu-Site
X-App-Name
X-Agile-Age
X-Agile
X-Gen-Mode
Wxu-Next-Region
X-Gamma-Serve
X-Agile-Id
X-Fetched-On
X-Developers
X-FW-Version
X-Fastly-Cache
X-Debug-Cache-Expiry
X-CGP
X-Generated-In
X-Bip
X-Clara-WADP
X-Block-Status
X-Cache-URL
X-Cache-ASPX
X-C
X-Cache-FS-Status
X-Bc-Bl
X-Cms-Context
X-Backend-Host
X-Cache-Bucket
X-Debug-Cache-Fetch
X-CUA
X-Backend-State
X-Contensis-Viewer-Groups
X-BBXSRF
X-Core-Mission
X-Debug-Cache-Store
X-LAGOON
X-Thanos
X-Slack-Backend
X-Thinkindot-L3
X-TrackingId
X-TT-TIMESTAMP
X-SIPLIST1
X-Sigma-Backend
X-Rocket-Build-Number
X-Server-W
X-ServiceProvider
X-Sigma
X-Tumblr-Pixel-3
X-Urbn-Context-Path
X-WebServer
X-Webstats-RespID
X-Wikidot-Backend
X-Wikidot-Static-Cache
X-WADP-Cache
X-VC-Cache
X-Urbn-Site-Id
X-Var-Ttl
X-Varnish-Authentication
X-Varnish-Cacheable
X-Request-Host
X-Req
Wxu-Next-Hostname
X-Li-Fabric
X-Li-Pop
X-LI-Proto
X-JWT-State
X-Irp-Debug
X-Has-Esi
X-Hash
X-Hnp-Log
X-Instart-Isnd
X-LI-UUID
X-Logging-Id
X-Owner
X-Proxy-Upstream
X-RateLimit-Limit-Second
X-RateLimit-Remaining-Second
X-Origin-Expires
X-Origin-Date
X-Matched-Rule
X-Micro-Cache
X-Ms-Request-Id
X-Ms-Version
X-Generation-Time
X-Is-Gdpr
N-Cache
Pramga
Memcached
Mail-Subject
Locid
RNT-Machine
RNT-Time
Thinkindot-CacheControl
Thinkindot-CacheControl-Type
Server-Surrogate-Control
Server-ID
Server-Cache-Control
Locale
L5d-Success-Class
CDCHOST
FNAC-ModuleRouting
Cache-Host
Wxu-Next-Commit
X-Varnish-Beresp-Ttl
Gh-Request-Id
Group
IsBot
Heartbleed
HA-Ipaddr
Ha-Gx-Prefs
Thinkindot-Control
AKAMAI
V-Age
Web-Mar-Node
W
We-Hiring
Mime-Version
Fastly-SIE
X-Lb-Id
X-Nginx-Cache-Key
Country-Code
Fastly-Drupal-HTML
Countrycode
X-Hit
X-DevSite-Last-Modified
On-Server
X-Epic-Correlation-Id
Kp-EeAlive
X-NodeID
Is-Eu
Fastly-SWR
Cloudfront-Viewer-Country
Cache-Cookie-Set-From
X-Swa-Ws
Cache-Cookie-Set-Idcheck
X-Trace-Id
X-Variation
X-We-Are-Hiring
X-VServer
Cache-Cookie-Set-Lfrom
X-Skip-Cache
X-Rebelmouse-Cache-Control
X-Platform-Server
X-Debug-Log
X-Rebelmouse-Surrogate-Control
X-Servername
Adler-Geo
X-Service
X-NX-Host
X-ND-Cache
X-Clientip
X-Debug-Cookies
X-Cache-Info
Platform
X-Cache-Tags
X-VCT
X-NC
X-Node-Id
X-TA-CDN-Provider
X-Fmm-Version
HitType
X-BACKEND-TTL
X-VHOST
X-Sucuri-ID
X-Response-By
Environment
X-Scheme
X-RESPONSE-TIME
X-Refresh
X-Correlation-ID
X-CLOUD-TRACE-CONTEXT
X-Parent-Response-Time
Hostname
X-Ratelimit-Remaining
X-SN
X-Pjax-Url
X-Cdn-Forward
X-Instart-Info
X-B3-Spanid
Cache
X-App-Version
X-MCACHE
X-Edge
X-Varnish-URL
X-CSRF-Token
X-VCache
X-APP
Proxy-Firewall
SD-X-WS
X-Origin-CC
X-Origin-TTL
X-CDN-Forward
Fastly-Backend-Name
X-Varnish-Ttl
X-MSEdge-Features
X-MSEdge-Flight
X-Up
Geoip-City
M-TraceId
X-Cache-PHP
Vix-Hermes-Req-Id
X-FPC
Origin
Geoip-Latitude
X-Server-Time
Request-Time
Cdn-Request-Time
TTL
X-Vdms-Path
Cdn-Host
X-TT-LOGID
Pragrma
X-Edge-Server
X-ECACHE
X-Wa
NM-Fastcgi-Cache
GeoIp-Country-Code
PICS-Label
CF-Cached-On
X-Mid
X-CSRF-TOKEN
X-Be
X-Vcl-Version
CACHE
NtCoent-Length
X-HS-Status
X-AK-Request-ID
Pagetype
X-Wix-Viewer-Type
Cdnsip
Cdncip
Sever-Int
Cdn
X-Cache-Host
X-Ua
X-ECache
X-SVT-ORM-VERSION
X-SVT-ORM-RULES
Server-Ext
Server-Hostname
Ohc-File-Size
HostName
X-URL
X-Myra-Origin2
X-Air-Hostname
X-NU-AKA-ACS-Version
X-Method
X-Newrelic-App-Data
SRV
Cteonnt-Length
X-Protected-By
X-Via-PopV
X-Tec-Api-Origin
Resin-Trace
X-Via-PopH
Magicmarker
X-Ratelimit-Limit
X-BC
X-ServedByHost
X-Tec-Api-Version
X-Litespeed-Cache
Memory
X-Worker
X-Tec-Api-Root
X-ZONE
X-Cache-Metadata
X-Pf-Uncompressing
X-GEO
X-Cache-Debug
X-Envoy-Upstream-Healthchecked-Cluster
X-Zone
Tcn
X-Bc
X-Request-Start
RequestId
X-Referer
X-Branch-Name
X-Dynatrace-Js-Agent
X-Unique-ID
X-NGINX-Cache
Dt-Cache-Category
X-TH-Server
Release
X-Azure-Ref-OriginShield
X-Servedbyhost
Ohc-Cache-HIT
X-Oneagent-Js-Injection
X-FORWARDED-FOR
X-Policy
X-Swift-Error
Load-Balancing
X-Planisys-CDN-Rules
IBM-Web2-Location
X-Planisys-CDN-Cache
X-Planisys-CDN-TTL
X-DC
X-C-Key
XServer
X-C-Zone
Esi-Enabled
Lb
Server-Int
Dnion-Transfer-Encoding
X-Reqid
X-Cache-Id
X-Esi-Check
X-VCL-Version
X-AIR-PT
X-Configured-By
Who
X-Tb-Optimization-Total-Bytes-Saved
Pics-Label
X-Fastly-Country-Code
X-Ocache
Powered-By
X-Ruxit-Js-Agent
GeoIP-Country-Code
X-Node-ID
X-COUNTRY
Ttl
X-Gzip
X-Via-Ucdn
X-WA
X-Datadome
X-B3-SpanId
X-VarnishDD-TTL
UCS
X-Country-IP
GeoIP-Latitude
GeoIP-City
Fastly-Soc-X-Request-Id
X-SRV
Fastly-SSL
X-Pinterest-Direct
MIME-Version
Product
X-Action
FSS-Cache
X-Fpc
X-HostName
X-ABtesting
X-Hello
X-SERVER-NAME
X-DSS
LB
X-Varnish-Url
X-DB
X-DI
X-RAMCache
X-Svr
X-DW
X-Powered-Y
X-Flog
X-RPS
X-PF-Uncompressing
X-RPM
X-RSL
X-Fastly-Request-Id
X-Fastly-Backend-Reqs
Lfy
Host-ID
X-PJAX-URL
X-WPE-Loopback-Upstream-Addr
X-Cache-Backend
X-MID
X-Via-CDN
CF-IPCountry
X-Server-IP
FSS-Proxy
X-Varnish-Beresp-TTL
X-Amzn-Remapped-Date
ProcessTime
X-Amzn-Remapped-Connection
X-SD-PageType
X-Render-Time
Sid
X-User
Amp-Access-Control-Allow-Source-Origin
Xet-Cookie
X-UPSTREAM-Address
X-Page-Impression-Id
X-Flow-Id
X-Zalando-Child-Request-Id
Requestid
X-Apw-Access-Token
X-Apw-Access-Object
X-Apw-Access-Action
X-LiteSpeed-Cache-Control
X-Agile-Brick-Ok
X-Apw-Hits
X-Beluga-Response-Time
X-Key
WZWS-RAY
X-Aicache-OS
X-Internal-Host
C-Via
X-Beluga-Trace
X-Beluga-Node
X-ElasticPress-Search
X-B3-Parentspanid
X-Compress-Hint
X-Beluga-Cache-Status
X-Debug-Controller
X-Debug-Revision
Cneonction
SN
X-Beluga-Record
X-Beluga-Status
L
X-BE
CDN
X-Check-Cacheable
X-Sucuri-Id
X-Litespeed-Cache-Control
X-LB-ID
X-Nananana
X-App
X-Sucuri-Cache
X-Tid
CloudFront-Viewer-Country
X-MiniProfiler-Ids
X-Fastly-Cache-Hits
X-Request-Url
DataCenter
X-Dw-Trace-Id
X-Request-URL