Threat Level: green Handler on Duty: Xavier Mertens

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
Content-Length
X-Frame-Options
Strict-Transport-Security
X-Content-Type-Options
Accept-Ranges
Last-Modified
CF-Cache-Status
Pragma
Link
CF-RAY
X-Powered-By
ETag
Expect-CT
X-XSS-Protection
Via
X-Cache
Age
Content-Security-Policy
Access-Control-Allow-Origin
Content-Language
P3P
X-UA-Compatible
X-Cache-Hits
X-Amz-Cf-Pop
X-Amz-Cf-Id
Referrer-Policy
X-Served-By
X-Xss-Protection
X-Varnish
X-Timer
Access-Control-Allow-Headers
Access-Control-Allow-Methods
Alt-Svc
X-Download-Options
X-Request-Id
X-AspNet-Version
Access-Control-Allow-Credentials
X-FRAME-OPTIONS
X-Runtime
X-Drupal-Cache
X-Adblock-Key
X-Request-ID
X-Check
X-Generator
Content-Security-Policy-Report-Only
X-Cache-Status
X-Cacheable
X-Permitted-Cross-Domain-Policies
X-DNS-Prefetch-Control
Timing-Allow-Origin
X-Iinfo
X-Template
X-Language
X-AspNetMvc-Version
Status
X-Content-Security-Policy
X-Buckets
Content-Encoding
Access-Control-Expose-Headers
Upgrade
X-CDN
Xkey
Access-Control-Max-Age
Keep-Alive
X-Kinja-Server-Push
X-Drupal-Dynamic-Cache
X-Turbo-Charged-By
X-Via
CF-Ray
X-AH-Environment
X-Ua-Compatible
X-Age
X-Cache-Group
X-Pass-Why
X-Backend
X-Envoy-Upstream-Service-Time
EagleId
X-Server
X-Amz-Id-2
X-Amz-Request-Id
X-Robots-Tag
X-Page-Speed
X-Server-Powered-By
X-Pingback
X-UA-Device
X-Proxy-Cache
X-Swift-CacheTime
X-Swift-SaveTime
X-Hacker
X-Nginx-Cache-Status
Ali-Swift-Global-Savetime
Request-Context
Grace
X-Varnish-Cache
Server-Timing
Feature-Policy
Cf-Railgun
X-Amz-Version-Id
X-Device
X-LiteSpeed-Cache
X-Pantheon-Styx-Hostname
X-Styx-Req-Id
X-WebKit-CSP
X-Rq
Report-To
EagleEye-TraceId
X-Ac
X-Server-Id
X-Response-Time
X-Host
X-OneAgent-JS-Injection
Request-Id
X-Cnection
X-Backend-Server
X-DataDome
X-Node
Content-Location
X-Origin-Cache
X-Cloud-Trace-Context
X-Readtime
X-Cache-Lookup
X-Cdn
NEL
X-Ws-Request-Id
X-Vhost
X-Application-Context
X-Dispatcher
X-ORACLE-DMS-ECID
X-HW
X-ORACLE-DMS-RID
P3p
Allow
X-Dns-Prefetch-Control
X-Clacks-Overhead
X-Rack-Cache
X-EdgeConnect-Origin-MEX-Latency
X-EdgeConnect-MidMile-RTT
X-Origin-Upstream-Status
X-DynaTrace
Surrogate-Control
Rating
X-FTR-Request-ID
X-Country
Fusion-Content-Id
Fusion-Component-Id
Fusion-Source
Fusion-Template-Id
Fusion-Content-Source
X-Country-Code
X-Akam-SW-Version
X-Goog-Hash
X-Varnish-TTL
Pinterest-Generated-By
X-Instart-Request-ID
X-PC
X-TtlSet
X-Vname
X-Ruxit-JS-Agent
Edge-Control
X-MS-InvokeApp
X-B3-TraceId
X-Url
X-Mod-Pagespeed
SPRequestGuid
Verso
X-Powered-By-Plesk
X-D2id
X-Trace
Accept-Ch
Response
X-Sol
Pagespeed
X-Middleton-Response
X-SharePointHealthScore
X-VARITI-CCR
Display
X-Middleton-Display
X-Server-Name
X-Kinja
X-Kinja-Build
X-Exp-Variant
X-Exp-Id
Service-Worker-Allowed
X-Cdn-Fetch
RTSS
X-Use-Magma
X-Kinja-Revision
X-Kinja-Server
X-GoogleNews-Bot
X-GitHub-Request-Id
X-ESI
X-Server-ID
SPIisLatency
SPRequestDuration
Content-MD5
X-Navigation-Version
X-Powered-CMS
X-Abt-Application-Version
X-Debug
X-TTL
X-Vcache
X-Vcap-Request-Id
X-Amz-Server-Side-Encryption
X-CST
X-Forwarded-Proto
MS-Author-Via
X-Upstream
X-Cached
Public-Key-Pins
Charset
DynaTrace
Accept-Ch-Lifetime
X-NF-Request-ID
Realpath
X-Amz-Rid
X-Version
Edge-Cache-Tag
X-Px
MicrosoftSharePointTeamServices
X-Shard
TCN
Arr-Disable-Session-Affinity
X-Ezoic-Cdn
X-Pinterest-Rid
X-MSEdge-Ref
Pinterest-Version
Fastly-Restarts
X-XRDS-Location
X-Ser
X-Shield-Request-Id
X-DynaTrace-JS-Agent
X-SRCache-Store-Status
X-SRCache-Fetch-Status
X-Trafficlayer-App-Name
Access-Control-Request-Method
X-Trafficlayer-App-Scope
X-Fastly-Request-ID
S
X-TEC-API-ROOT
X-TEC-API-VERSION
X-TEC-API-ORIGIN
X-Accel-Expires
X-DIS-Request-ID
X-Goog-Generation
X-Goog-Metageneration
X-Goog-Stored-Content-Length
X-Goog-Stored-Content-Encoding
X-Recruiting
Front-End-Https
X-Client-IP
Nginx-Cache
X-Amz-Meta-S3cmd-Attrs
X-Goog-Storage-Class
X-T
X-Id
X-Element-Page-Cache
X-Varnish-Age
Mrf-Cache-Status
X-Mrf-Section-Lastmod
X-Mrf-Item-Lastmod
X-B3-TraceId-Primal
MRF-Tech
X-Country-Code-Real
X-FTR-Backend
X-FTR-Realm
X-FTR-DC
X-FTR-Cache-Status
X-FTR-Backend-Server
X-FTR-Balancer
X-FTR-Expires
X-Amzn-Trace-Id
X-Dw-Request-Base-Id
X-Ttl
Cache-Tag
X-Webapp-Samesite-None-Activated-N
Fastcgi-Cache
X-Content-Digest
NR-ENABLED
X-HS-Cache-Config
X-HS-Content-Id
X-HS-Hub-Id
X-Frontend
Powered
X-Correlation-Id
X-Hits
X-Kinsta-Cache
X-Fastcgi-Cache
X-FTR-Cache-Host
Alternate-Protocol
X-Hp-Webp
X-RateLimit-Remaining
X-Aspnetmvc-Version
X-Webkit-Csp
ServerID
X-Litespeed-Cache
X-N
X-Request-Received
X-Grace
X-Request-Processing-Time
TP-Cache
TP-L2-Cache
X-Node-Name
X-Cache-Hit
X-Microsite
X-Request-Handler-Origin-Region
PB-RID
PB-PID
Server-Name
X-HS-Combine-CSS
X-Content-Type
Accept-CH
X-Mobile-Rewrite
Arc-Version
AMP-Access-Control-Allow-Source-Origin
X-Rid
Healthy
X-Zen-Fury
Accept-CH-Lifetime
X-User-Agent
Backend-Timing
X-Akamai-Edgescape
X-Analytics
X-Revision
Server-Node
X-Content-Security-Policy-Report-Only
X-Logged-In
X-LB-Cache
X-AppVersion
X-Forwarded-For
X-Az
X-Activity-Id
X-Pad
X-Amz-Apigw-Id
Cache-Status
X-Amzn-RequestId
X-FastCGI-Cache
X-Oneagent-Js-Injection
X-Cached-By
AR-PoweredBy
AR-ATIME
AR-CACHE
X-Mobile-URL
X-GUploader-UploadID
X-Varnish-Grace
X-IPLB-Instance
X-NWS-LOG-UUID
Retry-After
X-B3-Sampled
X-Type
X-Content-Options
X-Ruxit-Js-Agent
Ar-Sid
X-F-Cache
Refresh
Paypal-Debug-Id
X-Geo-Country
Upgrade-Insecure-Requests
FilterID
X-App-Environment
X-Tumblr-User
X-Srv
X-Instance
X-Varnish-Backend
X-FB-Debug
X-Tumblr-Pixel
X-Tumblr-Pixel-0
X-Jobs
X-Request-Guid
X-PHP-Backend
X-AOL-HN
Source
Accept-Charset
X-Debug-Info
DC
X-Cluster
Host
Actual-Object-TTL
X-Framework
X-Cache-Age
Access-Control-Allow-Method
X-B
X-Page-Id
X-Via-JSL
X-ATG-Version
X-WebKit-CSP-Report-Only
X-Seen-By
X-Erf-Bev-Bev-Is-Generated
X-Cache-Key
X-Erf-Bev-Bev
X-Cache-2
Fastcgi-Useragent
MS-CV
X-TT
X-Git-Hash
Cache
X-Content-Powered-By
X-Cache-TTL
AR-Request-ID
X-Whom
VIX-Pulpo-Node
VIX-Pulpo-Upstream-Status
X-PressLabs-Stats
X-Amz-Replication-Status
X-Cache-Control
X-Esi
X-UA
X-B-Cache
X-Signature
X-TA-CDN-Provider
Host-Header
X-Host-Name
X-Wix-Request-Id
Surrogate-Key
NGB
X-Response-Served-From
X-RequestSource
X-Cache-Enabled
X-Daa-Tunnel
X-Origin-Server
X-FW-Type
X-FW-Static
X-Mobile
Frame-Options
X-GeoIP
X-Drupal-Cache-Tags
X-FW-Server
Cache-Tv-Group
WPE-Backend
X-FW-Hash
X-FW-Serve
X-Tumblr-Pixel-1
X-Hyper-Cache
X-Region
X-Tumblr-Pixel-2
Eomportal-Instance
X-Handled-By
X-Cacheable-TTL
X-Cache-NE
Filters
X-Cache-Action
X-Cache-Operation
X-Cache-Rule
X-Kong-Upstream-Latency
X-Adobe-Loc
X-Adobe-Content
X-Kong-Proxy-Latency
Cleartype
X-EdgeConnect-Cache-Status
Payment
X-SERVER
X-TX-ID
Webserver
From-Origin
Xserver
X-RemovedCookies
X-ProcessESI
X-Forwarded-Host
X-Load-Cache
X-UA-Device-Type
Datacenter
X-Hostname
X-Akamai-Transformed
X-RTag
Ms-Operation-Id
X-Cache-TTL-Remaining
X-NewRelic-App-Data
X-Edge-Location
X-App-Server
X-Time
X-Cache-Server
X-ATS-Timestamp
Liferay-Portal
X-Status
X-Contextid
X-Yottaa-Optimizations
X-VCache
X-Yottaa-Metrics
X-Varnish-Hostname
X-Varnish-Server
Tracecode
X-Rule
X-BCube-Filmed-By
Odigeo-Trace-Id
X-TT-TIMESTAMP
Country
X-Cache-Var-Map
X-RN-RSRV
X-Path-Route
X-Upgrade-Enabled
X-ES-SERVER
Load-Balancing
Meta-Geo
X-Cache-Var
DSUID
Webcakes-App-Version
X-Debug-Cache
X-R9-Blue-Green-Version
X-VCT
Mn-Server-Ip
Version
X-Cache-Host
X-Varnish-Cache-Hits
X-EIG-Tracking-Id
Server-Info
TWC-Device-Class
X-UUID
TWC-Connection-Speed
X-Oss-Storage-Class
X-Oss-Server-Time
TWC-GeoIP-Country
TWC-GeoIP-LatLong
Webcakes-Region
Webcakes-App-Name
TWC-Privacy
TWC-Locale-Group
Release
X-Oss-Request-Id
X-ORACLE-APMCS-REQUEST-ID
X-FW-Dynamic
X-Oss-Object-Type
X-Oss-Hash-Crc64ecma
X-ORACLE-APMCS-TAG
X-Origin-Hint
Property-Id
Azure-RegionName
Cache-Tags
Azure-SiteName
Cache-Name
Azure-InstanceId
Azure-SlotName
DB-Nickname
Azure-Version
X-From
X-TNCMS
X-Origin-Response-Time
X-Hosted-By
X-Web-Node
X-Loop
X-PCL
X-Akamai-Request-ID
X-Rocket-Nginx-Bypass
X-CCM
X-OCL
Origin-Edge-Control
X-Via-Fastly
X-Drupal-Cache-Contexts
X-Soup
X-Pubstack
NGX
Origin-Cache-Control
X-IP
X-Human
Fastly-SSL
S-Rt
X-Redis-Cache
X-Cache-Config
Ec-Rule-Version
X-Locale
X-Access
X-Origin
L5d-Success-Class
X-Site-Version
X-Section
X-Viewer-Country
X-Www-Served-By
X-Xfnlog-Site
X-XRDS-LOCATION
X-Content-Age
X-Cache-Time
X-Proxy
X-Real-IP
X-ServerID
X-Akamai-Request-ID2
X-FC-Vary-Parameters
X-Proto
X-NWS-UUID-VERIFY
X-FireWall-Port
X-Labrador-Cache-Channel
X-Generated
X-Format
X-ApacheServer
X-Rendered-As
S-Cnection
X-PERF
Viewport
X-JoinUs
X-Vgn-Hpd-Reason
Decoy-Debug-Key
X-Goog-Meta-Goog-Reserved-File-Mtime
Decoy-Debug-TTL
Decoy-Debug-Status
X-Timing-Wait
X-Varnish-Hits
X-Proxy-Build
X-Is-Bot
X-Time-Microsecs
X-Info
Selected-Fe
Uber-Trace-Id
X-Backend-Name
X-Cluster-Name
X-Cache-Backend
X-Origin-CC
X-Generated-By
X-BYPASS-REASON
X-ProxyCache-Key
X-Origin-TTL
X-ProxyCache-Status
X-Storage
X-URL
X-RateLimit-Limit
Rt-Fastcgi-Cache
X-PHP-Host
X-Accel-Buffering
X-Amzn-Remapped-Content-Length
Akamai-GRN
Cteonnt-Length
X-Presslabs-Stats
Time
X-App-Version
X-WA-Info
GEO-INFO
Cache-Key
X-Guploader-Uploadid
X-Nginx-Cache-Key
X-SaId
Origin
Cache-Hits
X-Tec-Api-Root
X-Tec-Api-Version
X-Tec-Api-Origin
X-GoCache-CacheStatus
X-Cache-Remote
X-CF-Powered-By
X-NCache
X-SS-Set-Cookie
X-Hit
X-L-Path
X-No-Session
X-Backend-TTL
X-FB-TRIP-ID
X-Trace-Id
X-Environment-Context
X-MServer
Accept-Language
X-APP-VERSION
X-Geo
Vix-Hermes-Req-Id
X-Tb
X-Unique-Id
Access-Control-Request-Headers
X-CS
X-B3-Traceid
X-CDN-Forward
X-Say-Cacheable
X-SayCDN-TTL
X-Say-TTL
X-Device-Type
Srv
X-Tumblr-Pixel-3
X-Cache-Grace
X-B3-SpanId
X-OVcl-Cache
X-OVcl
X-S
X-CSRF-TOKEN
X-Cluster-Node
X-CACHE-KEY
X-Alternate-Cache-Key
OT-Force-Account-Verify
X-Sorting-Hat-PodId
X-Shopify-Stage
X-ShopId
X-Shopify-Generated-Cart-Token
X-Uri
X-ShardId
X-Sorting-Hat-ShopId
ServedBy
X-Request-UUID
MD5-Digest
Content-Style-Type
Machine
X-Date
X-Rewrite-Enabled
Arc-Country
Content-Script-Type
X-G
BehaviorPad-Version
X-Destination
X-S-Cookie
AsisCache
X-Rojux
Apple-News-Services-Request-Url
Apple-News-Services-Parsed-Url
Apple-News-Services-Handled
X-Connection-Hash
X-Detected-As
X-PAYTM-SRV-ID
Cross-Origin-Window-Policy
X-DPWN-IS-SECURE
Fastcgi-X-Cache-Version
User-Cache-Control
X-Hl-Ver
Apple-News-Services-Host
X-Region-Sid
X-D
X-CF-Lambda-Fn
X-CF-Lambda-Version
X-Processor
IsBot
X-External-Request-Id
X-A-Dam
X-ARC
VivaBuild
X-Application
Viewtype
X-Transaction
Request-EU
X-A-Wwc
Meta-Geo-Continent
Rendered-Blocks
Request-Country
X-Svr
X-A-Dgt
X-Accel-Expires-Debug
X-Trv-Group
X-Vtex-Remote-Cache
X-Vtex-Processado-Em
X-EC-Lua
Xc-Version
X-Aed
T-Server
X-VG-WebServer
Rt-Proxy-Cache
X-Twitter-Response-Tags
X-AIR-PT
Server-Host
X-VG-WebCache
X-B-Cookie
X-SRCache-Key
X-Ah-Environment
X-Dc
X-A
X-Server-Time
Node
X-A-Ccd
X-ScT
Mobile-Detection-Method
X-Session-Fingerprint
X-Service
X-SIPLIST1
X-A-Dcw
ServerName
NtCoent-Length
X-Via-CDN
Server-Int
X-Varnish-Beresp-Status
X-Varnish-Beresp-Grace
Wxu-Next-Hostname
X-Instart-Isnd
X-Generated-On
Wxu-Next-Commit
X-Cache-Bucket
Thinkindot-Control
Thinkindot-CacheControl-Type
X-Varnish-Beresp-Ttl
X-Core-Value
Thinkindot-CacheControl
X-CUA
X-Location
X-Dispatch
X-Reboot
X-Webstats-RespID
X-Matched-Rule
X-Thinkindot-L3
X-Cache-Info
X-Parent-Response-Time
Served-By
X-Vdms-Version
Wxu-Next-Region
X-Hash
X-Level-Front-Cache
Mime-Version
X-SRV
X-FW-Version
X-B3-Parentspanid
X-Up
X-App-Name
X-Amz-Meta-Cache-Control
X-User
X-Swa-Ws
X-VG-TLSProxy
X-VC-Cache
X-Azure-Ref
X-Backend-State
X-BBXSRF
X-Server-IP
X-Azure-Ref-OriginShield
X-Skip-Cache
X-VServer
X-SVT-ORM-RULES
X-Sucuri-Cache
X-SVT-ORM-VERSION
X-Agile-Age
X-IN-APIGATEWAY
X-GeoIP-City
X-Debug-Log
X-IN-APIGATEWAYSSL
X-NX-Host
X-Origin-Expires
X-Origin-Date
X-Debug-Cookies
X-Core-Mission
X-We-Are-Hiring
X-WADP-Cache
X-Block-Status
X-Wikidot-Backend
X-Wikidot-Static-Cache
X-Cache-Debug
PFcat
X-Agile-Id
X-SD-PageType
X-Dispatcher-Server
X-Distributor
X-Li-Pop
X-LI-UUID
X-Developers
X-Ms-Request-Id
X-Method
X-Logging-Id
X-Li-Fabric
X-JWT-State
X-Fastly-Cache
X-Geo-Header
X-Gen-Mode
X-Has-Esi
X-Epic-Correlation-Id
X-Is-Gdpr
X-Hnp-Log
X-Endurance-Cache-Level
X-Ms-Version
X-Old-Content-Length
X-Reqid
X-Release
X-Cache-URL
X-Cache-FS-Status
X-Request-URI
X-Scheme
X-C
X-S-Maxage
X-Cdn-Srv
X-RateLimit-Remaining-Second
X-Compress-Hint
X-Platform-Server
X-Owner
X-Cms-Context
X-Clara-WADP
X-RateLimit-Limit-Second
X-Qloud-Router
X-Generation-Time
X-Agile
Fastly-Soc-X-Request-Id
RNT-Machine
RNT-Time
We-Hiring
Esi-Enabled
Pramga
Content-Disposition
Cache-Host
Memcached
Magicmarker
SD-X-WS
L
IBM-Web2-Location
Heartbleed
Mail-Subject
W
X-RCS-CacheZone
CDCHOST
Section-Io-Cache
Kp-EeAlive
AKAMAI
Proxy-Connection
Web-Mar-Node
X-Magnolia-Registration
X-Nc
X-NC
Cache-Provider
Hostname
X-UnsetCookies
X-Source
X-CGP
X-Proxy-Cache-Status
X-Planisys-CDN-TTL
Adler-Geo
X-Upstream-Ht
X-Planisys-CDN-Rules
X-Proxy-Upstream
X-TrackingId
X-Upstream-Ct
X-Auto-Login
X-Sigma-Backend
X-Sigma
X-Thanos
X-Bip
X-Rocket-Build-Number
X-Request-Start
Ha-Gx-Prefs
X-Debug-Cache-Fetch
X-Debug-Cache-Expiry
Platform
X-Clientip
X-Eu-Site
X-Debug-Cache-Store
X-MSEdge-Flight
X-MSEdge-Features
True-Client-Country-4JS
X-Distil-CS
X-LI-Proto
X-Irp-Debug
X-Planisys-CDN-Cache
HA-Ipaddr
Is-Eu
X-Via-NSCOPI
X-Key
X-Variation
Countrycode
Gh-Request-Id
X-Cache-Id
X-Internal-Host
Now
X-Generated-In
X-WebServer
Locale
X-AK-Request-ID
X-Urbn-Site-Id
X-Policy
X-ServiceProvider
X-Urbn-Context-Path
X-B3-Spanid
Powered-By-ChinaCache
X-ND-Cache
X-7Graus-Varnish-Cache-Control
Cdnsip
Cdncip
X-NodeID
V-Age
X-7Graus-Varnish-XKeys
X-TIME
Server-ID
X-Servername
CF-IPCountry
X-COUNTRY
X-Cdn-Forward
Environment
X-GRACE
X-Be
X-Developer
GEO-REGION-INFO
A
X-Trafficlayer-App-Version
X-Sucuri-Id
X-Sn-Servicetimems
X-Lb-Id
X-FPC
X-Cdn-Origin
X-Device-Os
X-Newrelic-Synthetics
X-Served-From
X-Nginx-Cache
X-VHOST
Locid
X-Gamma-Serve
X-Req
X-Node-Id
Tcn
X-Refresh
X-Sucuri-ID
X-FORWARDED-FOR
FNAC-ModuleRouting
X-Servedbyhost
X-Microcachable
Geo-Info
X-Zone
X-Webkit-CSP
X-HTML-Minification-Powered-By
ProcessTime
X-Tb-Optimization-Total-Bytes-Saved
Memory
Request-Time
X-Render-Time
X-Ratelimit-Remaining
X-IPS-LoggedIn
X-Pf-Uncompressing
X-NU-AKA-ACS-Version
Resin-Trace
X-Edge-O15-RID
X-Pjax-Url
XServer
X-AWS-Id
X-LJ-Flow-ID
X-GeoIP-Country-Code
X-VWS-Id
X-VCL-Version
Gannett-Cam-Experience-Id
CF-Cached-On
X-Correlation-ID
X-MP-GENERATED-AT
Amp-Access-Control-Allow-Source-Origin
X-DC
X-ECACHE
Geoip-City
X-Instart-Info
GeoIp-Country-Code
Geoip-Latitude
Group
X-ElasticPress-Search
X-Mode
MIME-Version
TTL
X-Pod
Pics-Label
X-Var-Ttl
X-Backend-Url
Cf-Ipcountry
PICS-Label
X-Backend-Host
X-NGENIX-Cache
Backend-Name
X-Via-SSL
M-TraceId
X-CSRF-Token
X-Via-Edge
GeoIP-Country-Code
GeoIP-Latitude
GeoIP-City
X-Unique-ID
X-ZONE
X-APP
Lfy
X-Proxied
X-Zipkin-Id
X-Routing-Service
N-Cache
Host-ID
Ttl
REQUESTUUID
Pagetype
Cdn
X-Bc
X-Check-Cacheable
X-CLOUD-TRACE-CONTEXT
X-Vcl-Version
Fly-Request-Id
Cache-Cookie-Set-From
Cache-Cookie-Set-Idcheck
X-Fstrz
Cache-Prefix
Cache-Cookie-Set-Lfrom
Fly-Cache
X-Ratelimit-Limit
HostName
Ohc-Cache-HIT
Ohc-File-Size
X-BC
X-PF-Uncompressing
X-Worker
X-GEO
X-Via-Ucdn
HitType
X-Cdn-Request-ID
X-Cache-Miss-From
X-TH-Server
X-Fastly-Country-Code
X-PJAX-URL
X-Sedo-Request-Id
X-Dynatrace-Js-Agent
X-NGINX-Cache
X-Swift-Error
X-LiteSpeed-Cache-Control
X-Fetched-On
Pragrma
X-Server-W
User-Agent
On-Server
URI
X-Request-Time
X-HS-Status
X-Upstream-HT
X-HostName
X-Upstream-CT
Fastly-SIE
Fastly-SWR
X-Wa
Powered-By
X-Cache-Tag
X-ServedByHost
X-Rebelmouse-Cache-Control
X-WR-MODIFICATION
X-Rebelmouse-Surrogate-Control
X-UPSTREAM-Address
X-Tt-Trace-Tag
SRV
Who
Media-Length
X-WA
X-Aicache-OS
CDN
X-TT-LOGID
X-BE
X-LB-ID
X-Fpc
X-Varnish-Cacheable
X-Varnish-URL
X-LAGOON
X-GDPR
X-Fastly-Backend-Reqs
AR-SID
X-Cf-Powered-By
DataCenter
X-ServerName
FSS-Cache
Debug
CACHE
X-Tt-Trace-Host
Server-Id
Cdn-Request-Time
X-Akamai-ERPolicy
X-Edge-Server
Cdn-Host
X-Akamai-ERRuleID
FSS-Proxy
X-Ua
X-RateLimit-Reset
X-Ftr-Cache-Host
X-Hello
X-SN
X-ABtesting
X-Protected-By
X-Varnish-Beresp-TTL
Is-Session-Tracking
X-Flog
UCS
Get-Access-Time
X-Gen-Id
LB
SS
X-Hp-Ccpa-Warning
X-Cache-Tags
X-Store
NnCoection
Xet-Cookie
X-SB
XxX-Cache-Status
Cneonction
X-VC
Processtime
X-DB
X-Nananana
WP-Super-Cache
SN
X-Amzn-Remapped-Connection
X-Amzn-Remapped-Date
X-Dw-Trace-Id
X-Action
X-LiteSpeed-Tag
Warning
Requestid
X-RPM
X-RPS
X-RSL
X-Response-By
Thinkindot-Cache-Type
Application
Product
X-DI
X-Request-Url
X-Fastly-Cache-Hits
SID
X-DW
X-Li-Proto
X-DSS
X-Org