Threat Level: green Handler on Duty: Renato Marinho

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