Threat Level: green Handler on Duty: Guy Bruneau

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