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