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