Threat Level: green Handler on Duty: Johannes Ullrich

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
Content-Length
X-Frame-Options
Strict-Transport-Security
X-Content-Type-Options
Last-Modified
Accept-Ranges
Pragma
X-Powered-By
Link
ETag
CF-RAY
Expect-CT
Via
X-Cache
X-XSS-Protection
Age
Content-Security-Policy
Access-Control-Allow-Origin
Content-Language
X-UA-Compatible
X-Xss-Protection
X-Cache-Hits
X-Amz-Cf-Id
X-Served-By
Referrer-Policy
P3P
X-Varnish
X-Timer
X-Request-Id
CF-Cache-Status
Access-Control-Allow-Headers
Access-Control-Allow-Methods
X-AspNet-Version
P3p
X-Download-Options
X-Runtime
Access-Control-Allow-Credentials
CF-Ray
X-Drupal-Cache
X-Amz-Cf-Pop
X-Check
X-Adblock-Key
Alt-Svc
X-Cacheable
X-Generator
Content-Security-Policy-Report-Only
X-Cache-Status
X-DNS-Prefetch-Control
X-AspNetMvc-Version
Status
X-Template
X-Language
Timing-Allow-Origin
Content-Encoding
X-Permitted-Cross-Domain-Policies
X-Iinfo
X-Buckets
X-Content-Security-Policy
X-Request-ID
X-Turbo-Charged-By
X-Kinja-Server-Push
X-CDN
Upgrade
X-Type
Xkey
Keep-Alive
Access-Control-Expose-Headers
Access-Control-Max-Age
WPE-Backend
X-Pass-Why
X-AH-Environment
X-Backend
X-Cache-Group
X-Server
X-Age
X-Drupal-Dynamic-Cache
X-Pingback
X-Via
X-Nginx-Cache-Status
Grace
X-Amz-Id-2
X-Amz-Request-Id
X-Server-Powered-By
EagleId
X-Hacker
X-UA-Device
X-Robots-Tag
X-LiteSpeed-Cache
X-Varnish-Cache
X-Page-Speed
X-Proxy-Cache
X-Swift-CacheTime
X-Swift-SaveTime
Cf-Railgun
Request-Context
X-Envoy-Upstream-Service-Time
Ali-Swift-Global-Savetime
X-Ua-Compatible
X-Ac
X-Styx-Req-Id
X-Pantheon-Styx-Hostname
X-Device
X-WebKit-CSP
X-Cache-Lookup
Content-Location
X-Amz-Version-Id
X-Server-Id
Surrogate-Control
X-Cnection
X-Host
X-Readtime
Report-To
EagleEye-TraceId
X-Node
X-OneAgent-JS-Injection
X-Rq
X-Response-Time
Server-Timing
Feature-Policy
X-CST
X-Rack-Cache
X-Application-Context
X-Backend-Server
X-ORACLE-DMS-ECID
X-Iejgwucgyu
X-Cloud-Trace-Context
Request-Id
X-Instart-Request-ID
X-Clacks-Overhead
X-Url
Edge-Control
X-DynaTrace
NEL
Rating
Allow
X-Country
X-EdgeConnect-Origin-MEX-Latency
X-EdgeConnect-MidMile-RTT
X-Varnish-TTL
X-Origin-Cache
X-FTR-Request-ID
X-Country-Code
X-B3-TraceId
X-Px
X-Trace
X-DataDome
X-Vhost
X-Server-Name
X-ESI
X-GitHub-Request-Id
X-Server-ID
X-VARITI-CCR
X-MS-InvokeApp
Accept-CH
X-Cached
RTSS
X-Goog-Hash
X-Ruxit-JS-Agent
X-TTL
Charset
SPRequestGuid
Pinterest-Generated-By
X-ORACLE-DMS-RID
X-Mod-Pagespeed
X-TtlSet
X-Vname
X-PC
X-F-Cache
X-D2id
X-Kinja-Server
X-Kinja-Build
Verso
X-Use-Magma
X-Exp-Id
X-Cdn-Fetch
X-Exp-Variant
X-GoogleNews-Bot
X-Kinja
X-Kinja-Revision
Public-Key-Pins
PB-PID
X-Mobile-Rewrite
PB-RID
Arc-Version
X-Dispatcher
X-Version
X-T
X-SharePointHealthScore
X-Cdn
X-Powered-By-Plesk
Accept-CH-Lifetime
X-Abt-Application-Version
X-DIS-Request-ID
X-Powered-CMS
X-Fastly-Request-ID
X-Ser
X-Origin-Upstream-Status
Pinterest-Version
X-Pinterest-Rid
X-Navigation-Version
X-Upstream-Env
X-DynaTrace-JS-Agent
X-B
X-Forwarded-Proto
X-Shield-Request-Id
X-SRCache-Store-Status
X-SRCache-Fetch-Status
X-Amz-Rid
MS-Author-Via
Realpath
DynaTrace
X-Client-IP
X-Recruiting
X-HW
SPIisLatency
SPRequestDuration
X-TEC-API-VERSION
X-TEC-API-ROOT
X-TEC-API-ORIGIN
X-Oracle-Dms-Rid
X-Upstream
X-Vcap-Request-Id
X-Goog-Generation
X-Goog-Metageneration
X-Goog-Stored-Content-Length
X-Goog-Stored-Content-Encoding
Nginx-Cache
Content-MD5
X-Wix-Server-Artifact-Id
X-Accel-Buffering
AR-CACHE
AR-ATIME
AR-PoweredBy
X-Amz-Meta-S3cmd-Attrs
Arr-Disable-Session-Affinity
Edge-Cache-Tag
X-Hits
X-Debug
X-Varnish-Age
X-N
X-Ttl
X-Mrf-Item-Lastmod
X-Mrf-Section-Lastmod
X-B3-TraceId-Primal
MRF-Tech
Mrf-Cache-Status
X-Goog-Storage-Class
X-Oneagent-Js-Injection
X-MSEdge-Ref
X-Dw-Request-Base-Id
X-NF-Request-ID
TCN
Access-Control-Request-Method
X-Via-JSL
X-Id
X-Acc-Meta-Resource-Type
X-Aspnet-Version
X-NewRelic-App-Data
S
X-ATG-Version
X-FTR-Backend-Server
X-Country-Code-Real
X-FTR-Realm
X-FTR-Balancer
X-FTR-Backend
X-FTR-Cache-Status
X-FTR-DC
X-FTR-Expires
Service-Worker-Allowed
X-Logged-In
Alternate-Protocol
X-Cache-Key
X-HS-Hub-Id
X-XRDS-Location
X-HS-Content-Id
X-Forwarded-For
Rt-Fastcgi-Cache
Surrogate-Key
Tracecode
X-Kinsta-Cache
X-Frontend
X-PressLabs-Stats
AMP-Access-Control-Allow-Source-Origin
X-Content-Digest
X-FastCGI-Cache
X-Pad
X-Ruxit-Js-Agent
X-Grace
MicrosoftSharePointTeamServices
X-FTR-Cache-Host
Fastly-Restarts
Fastcgi-Cache
Ar-Sid
X-CF-Powered-By
X-RateLimit-Remaining
X-Amzn-Trace-Id
X-Edge-Location
Server-Name
X-Content-Options
Backend-Timing
X-Analytics
FilterID
Host
TP-Cache
TP-L2-Cache
X-Cache-2
X-Rid
X-User-Agent
X-Magnolia-Registration
ServerID
X-Whom
X-B3-Sampled
X-IPLB-Instance
X-Debug-Info
X-Revision
Eomportal-Instance
X-Page-Id
X-Hostname
X-Mobile
X-Request-Processing-Time
X-Request-Received
X-Srv
AR-Request-ID
X-NWS-LOG-UUID
X-XRDS-LOCATION
Paypal-Debug-Id
Front-End-Https
X-VCache
X-AOL-HN
X-Akam-SW-Version
Retry-After
X-Content-Powered-By
Refresh
X-Signature
X-Correlation-Id
X-B-Cache
X-Request-Guid
X-Cluster
X-Framework
X-Device-Type
X-LB-Cache
X-Handled-By
X-FB-Debug
X-Varnish-Hostname
Cleartype
X-SS-Set-Cookie
X-App-Environment
X-Cache-Hit
X-Tumblr-User
X-BCube-Filmed-By
Source
X-Tumblr-Pixel-0
X-Cache-Control
X-Cache-Action
X-Tumblr-Pixel
X-Akamai-Edgescape
X-Instance
X-WA-Info
X-Varnish-Grace
X-Litespeed-Cache
X-Platform-Server
X-HS-Cache-Config
X-GUploader-UploadID
X-Content-Security-Policy-Report-Only
Webserver
X-Activity-Id
X-AppVersion
X-Fastcgi-Cache
X-Az
X-TA-CDN-Provider
X-Middleton-Display
X-Sol
Display
X-Zen-Fury
X-Varnish-Backend
X-Content-Type
Healthy
X-Cache-Server
VIX-Pulpo-Node
VIX-Pulpo-Upstream-Status
X-Cache-Rule
Response
X-Middleton-Response
X-Varnish-Server
X-Drupal-Cache-Tags
X-Daa-Tunnel
X-Cache-Age
X-Seen-By
X-Wix-Request-Id
ViewerVersion
X-Webkit-CSP
X-TT
X-Cached-By
Upgrade-Insecure-Requests
X-App-Server
X-Drupal-Cache-Contexts
X-Geo-Country
X-URL
X-Generated-By
Cache-Status
X-Origin-Server
S-Cnection
Server-Node
X-Amz-Replication-Status
X-Accel-Expires
X-DataStream-Cache-Status
X-Amz-Apigw-Id
Accept-Charset
X-Amzn-RequestId
Payment
X-CACHE-GROUP
NGB
X-S
X-UA-Device-Type
X-Response-Served-From
Filters
X-Cacheable-TTL
X-Adobe-Loc
X-Adobe-Content
X-Edge-Cache-Key
X-Edge-Cache
X-Locale
X-Status
Actual-Object-TTL
X-UUID
X-Varnish-IP
Access-Control-Allow-Method
X-Servedby
X-RequestSource
X-Esi
X-Jobs
Viewport
X-Contextid
X-Cache-NE
GEO-INFO
X-FW-Type
X-FW-Static
X-FW-Server
X-FW-Serve
X-TT-TIMESTAMP
X-Tumblr-Pixel-1
X-Varnish-Hits
X-TX-ID
X-Tumblr-Pixel-2
ServedBy
X-FW-Hash
X-WPE-Loopback-Upstream-Addr
Server-Info
X-Storage
X-Amz-Server-Side-Encryption
AsisCache
X-GeoIP
X-WebKit-CSP-Report-Only
X-PHP-Backend
MS-CV
X-Node-Name
Cache-Tv-Group
HostName
Host-Header
X-Cache-Remote
X-Rendered-As
X-Cache-TTL-Remaining
X-Dns-Prefetch-Control
X-Croise-Owner
SRV
From-Origin
Cache
X-App-Version
X-Region
X-Dynatrace-Js-Agent
X-Cache-Operation
X-Hyper-Cache
X-APP-VERSION
X-Vg-Webcache
X-Redis-Cache
Served-By
Cache-Tag
Liferay-Portal
X-UA
X-HS-Combine-CSS
DC
Public-Key-Pins-Report-Only
X-Mode
X-Guploader-Uploadid
Pagespeed
X-TIME
X-Forwarded-Host
X-Human
X-Generated
X-Agile
X-Agile-Id
X-Agile-Age
Powered-By-ChinaCache
Xserver
X-Path-Route
X-IP
X-Cache-Var-Map
X-RN-RSRV
X-Loop
X-NGENIX-Cache
Meta-Geo
X-Cache-Var
Machine
X-TNCMS
X-Timing-Wait
Selected-FE
X-Webstats-RespID
X-Site-Version
X-Is-Bot
X-Detected-As
X-Proxy-Build
X-Hosted-By
X-Grey
X-BYPASS-REASON
X-Akamai-Transformed
X-CDN-Cache
X-Endurance-Cache-Level
X-Cache-Category-Id
X-Internal-Host
Cache-Name
Origin-Cache-Control
Origin-Edge-Control
X-Via-Fastly
Now
X-Vgn-Hpd-Reason
X-Request-Time
X-NCache
X-ProxyCache-Key
X-Upstream-HT
X-JoinUs
X-Upgrade-Enabled
X-Upstream-CT
X-Web-Node
X-Original-Request
X-ProxyCache-Status
X-B3-Spanid
X-Birta-Served
DB-Nickname
X-Akamai-Request-ID
X-Birta-Cache-Post
X-Proxy
X-Labrador-Cache-Channel
X-ServerID
X-L-Path
X-Time-Microsecs
X-Origin
X-Origin-Response-Time
X-Origin-Host
X-Pc-Appver
X-RemovedCookies
X-VG-TLSProxy
X-FC-Vary-Parameters
X-Tumblr-Pixel-3
X-Pc-Hit
X-ProcessESI
X-Pc-Key
X-Environment-Context
S-Rt
X-BACKEND-TTL
X-Www-Served-By
X-Xfnlog-Site
Fastcgi-X-Cache-Version
Fastcgi-X-Cache
Fastcgi-Useragent
X-Yottaa-Metrics
X-Yottaa-Optimizations
X-Backend-Name
X-PCL
X-CCM
Mn-Server-Ip
X-Format
X-Via-CDN
X-Viewer-Country
X-OCL
Azure-InstanceId
X-Rule
X-Tb
X-Pubstack
Azure-RegionName
X-Origin-CC
Azure-SiteName
Azure-SlotName
Azure-Version
TWC-GeoIP-LatLong
Webcakes-Region
Webcakes-App-Version
Webcakes-App-Name
X-Access
TWC-Privacy
TWC-Locale-Group
X-Origin-Hint
TWC-GeoIP-Country
Datacenter
X-Zipkin-Id
X-Ocache
X-Cache-Config
X-Section
X-App-Name
TWC-Device-Class
X-Proxied
Cache-Tags
Property-Id
HitType
X-Routing-Service
TWC-Connection-Speed
Content-Style-Type
X-Kong-Proxy-Latency
X-Kong-Upstream-Latency
Content-Script-Type
Cache-Key
X-Protected-By
X-Edge-IP
X-Parent-Response-Time
User-Cache-Control
X-Nginx-Cache
OT-Force-Account-Verify
X-NODE
X-Ezoic-Cdn
X-Real-Ip
X-Cache-TTL
X-Sorting-Hat-ShopId
X-ShardId
X-Sorting-Hat-PodId
Vix-Hermes-Req-Id
X-ShopId
X-Alternate-Cache-Key
X-Shopify-Stage
X-Akamai-Request-ID2
NtCoent-Length
X-RTag
Ms-Operation-Id
X-CACHE-KEY
X-OVcl-Cache
Time
X-OVcl
X-ApacheServer
X-Cdn-Forward
X-PERF
X-Pc-Date
X-Pc-Host
X-Cache-Backend
X-FB-TRIP-ID
X-RateLimit-Limit
L5d-Success-Class
Accept-Language
X-Mrs-Age
X-Mrs-Cache-Hits
X-Mshield-Cache-Status
X-Unique-Id-Primal
X-Mrs-Cache
X-Newrelic-App-Data
X-Ratelimit-Limit
LB
Country
X-Front
X-Webkit-Csp
AR-SID
X-Content-Age
X-Proto
X-Correlation-ID
X-Nc
X-Amz-Meta-Surrogate-Control
X-Real-IP
X-Varnish-Cacheable
Load-Balancing
X-CDN-Forward
X-Debug-Cache
Section-Io-Cache
X-Varnish-Beresp-Grace
X-Varnish-Beresp-Status
Ohc-File-Size
WZWS-RAY
Fusion-Source
Fusion-Template-Id
Fusion-Content-Source
X-MP-GENERATED-AT
X-Hl-Ver
X-Sucuri-ID
Fusion-Component-Id
Fusion-Content-Id
Mail-Subject
X-Hit
X-Varnish-Beresp-Ttl
We-Hiring
Warning
X-Microcachable
X-EdgeConnect-Cache-Status
X-Dc
User-Agent
X-GRACE
X-Via-NSCOPI
X-Trace-Id
Version
X-C
X-Geo
Access-Control-Request-Headers
X-Unique-ID
X-A-Ccd
X-Fetched-On
X-A
X-From
X-A-Dam
Adler-Geo
Ajk
Arc-Country
Www
VivaBuild
Viewtype
Platform
BehaviorPad-Version
X-Passed-To
Meta-Geo-Continent
X-Qloud-Router
X-RCS-CacheZone
X-Li-Fabric
X-D
X-Crawler
Is-Eu
X-G
X-CUA
Release
X-FW-Version
X-A-Dgt
X-A-Dcw
X-Passed-To-BeforeDispatch
X-A-Wwc
Rendered-Blocks
X-Date
Cache-Prefix
V-Age
Fly-Cache
Fly-Request-Id
Server-ID
Powered-By
X-P-T
X-External-Request-Id
Frame-Options
Server-Host
RNT-Machine
Resin-Trace
RNT-Time
X-DPWN-IS-SECURE
SD-X-WS
Rt-Proxy-Cache
X-Dispatcher-Server
Fastly-Backend-Name
Thinkindot-Control
Thinkindot-CacheControl-Type
MD5-Digest
X-Connection-Hash
Memcached
X-Destination
X-Node-Id
X-Passed-To-PostProcessResponse
X-Device-Os
X-Died
SS
X-Developer
Thinkindot-CacheControl
Ec-Rule-Version
Request-Time
X-Region-Sid
X-Cache-Bucket
X-CLOUD-TRACE-CONTEXT
X-Bip
X-Server-Time
Mobile-Detection-Method
X-Cache-Enabled
X-Cache-Debug
X-NU-AKA-ACS-Version
X-BB-ID
X-Variation
X-Served-From
X-CF-Lambda-Fn
X-User
X-Server-By
X-LI-Proto
X-Li-Pop
X-Cache-Expires
X-Thinkindot-L3
X-Layer
X-PAYTM-SRV-ID
X-Thanos
X-Swa-Ws
X-Store
X-Cache-URL
X-Transaction
X-Trv-Group
X-SRCache-Key
X-Cache-FS-Status
X-UE-Client-Country
X-Twitter-Response-Tags
X-TT-LOGID
Node
X-Matched-Rule
X-Varnish-Action
X-Goog-Meta-Goog-Reserved-File-Mtime
X-Returned-From
X-Response-By
X-Returned-From-BeforeDispatch
X-Passed-To-DLL
X-Returned-From-PostProcessResponse
X-Returned-From-DLL
X-Request-UUID
X-Org
X-Actual-URL
X-Accel-Expires-Debug
X-Reboot
X-Release
X-Generated-In
X-Logtrace-Id
X-Aed
X-LI-UUID
X-Rewrite-Enabled
X-ScT
X-CF-Lambda-Version
X-We-Are-Hiring
X-Via-SSL
X-VG-WebServer
X-Via-Edge
X-Application
X-WebServer
X-Rojux
Xc-Version
X-B-Cookie
X-S-Cookie
X-Auto-Login
X-S-Maxage
Pramga
Origin
On-Server
X-Origin-Date
X-Block-Status
X-Backend-State
X-Cache-CFC
X-Cache-Host
X-Cache-Id
X-Amz-Meta-Cache-Control
X-Clientip
Server-Int
True-Client-Country-4JS
X-Origin-Expires
Web-Mar-Node
Proxy-Connection
Decoy-Debug-Status
X-Gen-Mode
X-Rebelmouse-Surrogate-Control
X-Request-Start
X-GeoIP-Country-Code
X-Rocket-Nginx-Bypass
PFcat
X-Fstrz
X-Rebelmouse-Cache-Control
MI-Cache-Age
Cache-Cookie-Set-Lfrom
Cache-Cookie-Set-From
Backend
AKAMAI
X-MI-In-Market
X-Location
X-Hash
X-Sf
X-ServiceProvider
X-UnsetCookies
X-Stale
X-SVT-ORM-VERSION
X-Key
X-Info
X-Server-IP
X-Hnp-Log
X-Var-Ttl
X-IN-APIGATEWAY
X-Server-Group
X-IN-WAF
X-IN-SSL-APIGATEWAY
X-F5-Cache
Cache-Cookie-Set-Idcheck
GMS-Ver
GW-Server
X-Proxy-Upstream
X-PHP-Host
Magicmarker
X-Distributor
Kp-EeAlive
X-No-Session
X-Nginx-Cache-Key
Heartbleed
IBM-Web2-Location
X-SVT-ORM-RULES
Fastly-SWR
Countrycode
MI-API
MI-Cache
Country-Code
X-Proxy-Cache-Status
Content-Disposition
X-Phone
Decoy-Debug-Key
Fastly-SSL
Decoy-Debug-TTL
Fastly-SIE
Esi-Enabled
Pagetype
X-Be
X-Irp-Debug
X-CGP
X-Gannett-Site-Version
X-MSEdge-Features
X-Fastly-Cache
X-Eu-Site
X-Epic-Correlation-Id
X-Core-Value
X-Core-Mission
X-MSEdge-Flight
X-Distil-CS
HA-Urlpath
HA-Cloudapp
X-Policy
HA-Geocity
HA-Geocountry
HA-Geolon
HA-Geolat
X-Backend-Url
X-ElasticPress-Search
X-SIPLIST1
X-Time
X-Up
X-V
X-Secret
HA-Georegion
Backend-Name
REQUESTUUID
IsBot
Who
HA-Servedtime
X-Backend-Host
HA-Ipaddr
Ha-Gx-Prefs
HA-Host
X-Refresh
X-Svr
X-Developers
X-Request-URI
X-Wikidot-Backend
X-Origin-TTL
X-Page-Type
X-Wikidot-Static-Cache
X-Micro-Cache
Apple-News-Services-Host
CDCHOST
Fastly-Soc-X-Request-Id
X-Platform
Pragrma
Apple-News-Services-Request-Url
Apple-News-Services-Handled
Apple-News-Services-Parsed-Url
X-Ua
Nel
X-Sn-Servicetimems
X-Servername
X-NX-Host
X-Urbn-Context-Path
X-Generated-On
X-Planisys-CDN-TTL
X-Planisys-CDN-Rules
X-Planisys-CDN-Cache
X-Level-Front-Cache
X-Debug-Cache-Store
X-Debug-Cache-Expiry
X-Debug-Cache-Fetch
X-Urbn-Site-Id
Uber-Trace-Id
Request-EU
UCS
Locale
X-Instance-Name
X-Debug-Log
RequestId
X-Cdn-Origin
X-Debug-Cookies
Request-Country
X-Pjax-Url
ServerName
X-Instart-Info
Lfy
X-NWS-UUID-VERIFY
X-COUNTRY
X-DC
Group
V-Cache
Ohc-Response-Time
X-GeoIP-City
X-VarnPar1
X-PARISIEN-Cache-Rendered
X-VarnCache
X-Cdn-Srv
X-Server-Cache
X-VCT
Host-ID
X-Newrelic-Synthetics
PageSpeed
X-CACHE-AGE
X-NC
HitInfo
X-Req
X-ARC
X-Cache-Info
Cdn
Mime-Version
Memory
X-Datadome
X-Ratelimit-Remaining
MIME-Version
Cteonnt-Length
PICS-Label
X-BBXSRF
Cache-Provider
X-Powered-By-ANYU
X-Gdpr
X-CMS-Context
X-EIG-Tracking-Id
X-TWH-CORRELATION-ID
X-WR-MODIFICATION
X-Servedbyhost
X-LAGOON
X-StackifyID
X-Aicache-OS
CF-IPCountry
NGX
X-Load-Cache
X-Wa
X-HTML-Minification-Powered-By
X-Cluster-Node
X-B3-Traceid
GeoIP-Latitude
CDN
X-Fastly-Country-Code
GeoIP-Country-Code
X-WA
Cf-Ipcountry
X-FireWall-Port
X-Fastly-Backend-Reqs
X-Unique-Id
FSS-Cache
X-NodeID
GeoIp-Country-Code
XServer
FSS-Proxy
X-Sentry-ID
Geoip-Latitude
X-Varnish-Beresp-TTL
X-Check-Cacheable
X-Varnish-Cache-Hits
X-Hello
X-RateLimit-Limit-Second
X-VServer
X-RateLimit-Remaining-Second
X-UPSTREAM-Address
X-Flog
X-CSRF-TOKEN
X-ABtesting
X-Generation-Time
CACHE
Processtime
Amp-Access-Control-Allow-Source-Origin
X-Source
X-ServedByHost
SN
X-Sedo-Request-Id
X-Cache-Miss-From
X-Csrf-Token
X-CSRF-Token
X-Oss-Request-Id
X-HOST
X-Oss-Server-Time
X-Oss-Storage-Class
X-GZip
X-Cache-Grace
X-Oss-Object-Type
X-APP
X-Oss-Hash-Crc64ecma
WP-Super-Cache
X-CDN-Pop-IP
X-DataStream-Origin-MEX-Latency
TSSecure
Server-Surrogate-Control
X-Varnish-Authentication
X-CDN-Pop
X-DataStream-MidMile-RTT
Server-Cache-Control
X-Cache-ASPX
X-HS-Status
X-Worker
Cdn-Request-Time
Cdn-Host
X-Dynatrace
X-Nananana
X-RCS-Backend
X-VG-WebCache
X-MServer
X-Edge-Server
X-IPS-LoggedIn
X-SRV
X-Varnish-Url
Pics-Label
A
URI
X-VC-Cache
X-FORWARDED-FOR
X-Skip-Cache
X-GDPR
PageType
X-ID
DataCenter
X-Sucuri-Cache
X-ND-Cache
X-Instart-Isnd
X-B3-SpanId
X-SplitTest
X-LJ-Flow-ID
X-Fastly-Cache-Hits
X-VWS-Id
HTTPS
X-AWS-Id
X-GoCache-CacheStatus
X-Port
X-BE
X-Swift-Error
X-PJAX-URL
X-Server-W
Is-Session-Tracking
X-Pf-Uncompressing
Dynatrace
X-Backend-TTL
Get-Access-Time
X-From-Cache
Odigeo-Trace-Id
Hostname
X-Owner
Proxy-Firewall
Powered
X-Gen-Id
X-SN
X-GZIP
Cache-Hits
X-Bug-Bounty
X-Amzn-Remapped-Connection
X-Amzn-Remapped-Date
X-VarnPar2
X-ORIG-AKA-EDGE
X-Cache-Ttl
X-NGINX-Cache
X-PAGE-TYPE
Requestid
X-Akamai-SSL-Client-Sid
X-Ms-Version
Serverid
X-Ms-Lease-Status
X-Ms-Blob-Type
X-Amz-Meta-S3b-Last-Modified
X-Ms-Request-Id
X-ServerName
X-HostName
X-LiteSpeed-Cache-Control
WebServer
X-Alicdn-Da-Ups-Status
X-Varnish-URL
X-Serial
X-VC
X-SB
RequestUuid
T-Server
X-ORIG-AKA-COUNTRY-CODE
X-RequestId
X-Fe
X-RAMCache
X-Pc-Subdomain
ProcessTime
X-GEO
Correlation-Id
NodeID
X-PF-Uncompressing
X-Ms-Lease-State
Xet-Cookie
SID
X-Dw-Trace-Id
X-Developed-By
Location
X-Akamai-ERRuleID
X-Akamai-ERPolicy
X-CS
X-HTML-Edge-Cache
NnCoection
X-LiteSpeed-Tag