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