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