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