Threat Level: green Handler on Duty: Xavier Mertens

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-Cache-Hits
X-Xss-Protection
X-Amz-Cf-Id
X-Served-By
P3P
Referrer-Policy
X-Varnish
X-Request-Id
X-Timer
CF-Cache-Status
Access-Control-Allow-Headers
Access-Control-Allow-Methods
X-AspNet-Version
X-Download-Options
X-Runtime
Access-Control-Allow-Credentials
P3p
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
X-Permitted-Cross-Domain-Policies
Content-Encoding
X-Iinfo
X-Buckets
X-Content-Security-Policy
X-Turbo-Charged-By
X-Kinja-Server-Push
Upgrade
X-CDN
X-Request-ID
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-Request-Id
X-Amz-Id-2
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
Request-Context
Cf-Railgun
X-Envoy-Upstream-Service-Time
Ali-Swift-Global-Savetime
X-Ua-Compatible
X-Ac
X-Styx-Req-Id
X-Pantheon-Styx-Hostname
X-WebKit-CSP
X-Device
X-Cache-Lookup
Content-Location
X-Amz-Version-Id
Surrogate-Control
X-Server-Id
X-Cnection
X-Node
X-Host
X-OneAgent-JS-Injection
X-Readtime
EagleEye-TraceId
Report-To
X-Rq
X-Response-Time
Server-Timing
Feature-Policy
X-Application-Context
X-CST
X-Rack-Cache
X-Backend-Server
X-ORACLE-DMS-ECID
X-Iejgwucgyu
X-Cloud-Trace-Context
Request-Id
X-Instart-Request-ID
X-Clacks-Overhead
NEL
Edge-Control
X-DynaTrace
X-Url
Rating
Allow
X-Country
X-EdgeConnect-MidMile-RTT
X-EdgeConnect-Origin-MEX-Latency
X-Varnish-TTL
X-Origin-Cache
X-FTR-Request-ID
X-Country-Code
X-B3-TraceId
X-Px
X-Trace
X-Server-ID
X-DataDome
X-Vhost
X-ESI
X-GitHub-Request-Id
X-Server-Name
X-ORACLE-DMS-RID
X-VARITI-CCR
Accept-CH
X-Ruxit-JS-Agent
RTSS
X-Cached
X-MS-InvokeApp
X-Goog-Hash
Charset
SPRequestGuid
X-Mod-Pagespeed
Pinterest-Generated-By
Public-Key-Pins
X-D2id
X-TtlSet
X-PC
X-F-Cache
X-Vname
X-Exp-Id
X-Kinja-Server
Verso
X-Exp-Variant
X-Use-Magma
X-Kinja-Build
X-Kinja-Revision
X-Kinja
X-Cdn-Fetch
X-GoogleNews-Bot
PB-RID
X-Mobile-Rewrite
PB-PID
Arc-Version
X-Version
X-Dispatcher
X-TTL
X-Cdn
X-T
X-SharePointHealthScore
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-DynaTrace-JS-Agent
X-Origin-Upstream-Status
Pinterest-Version
X-Upstream-Env
X-Pinterest-Rid
X-Navigation-Version
X-B
X-Forwarded-Proto
X-Shield-Request-Id
X-SRCache-Fetch-Status
X-Amz-Rid
X-SRCache-Store-Status
MS-Author-Via
X-Recruiting
Realpath
X-Client-IP
DynaTrace
X-HW
SPRequestDuration
SPIisLatency
X-TEC-API-VERSION
X-TEC-API-ORIGIN
X-TEC-API-ROOT
X-Upstream
X-Vcap-Request-Id
X-Ttl
X-Goog-Stored-Content-Encoding
X-Goog-Stored-Content-Length
X-Goog-Generation
X-Goog-Metageneration
Nginx-Cache
Content-MD5
X-Wix-Server-Artifact-Id
X-Accel-Buffering
X-Amz-Meta-S3cmd-Attrs
AR-PoweredBy
AR-ATIME
AR-CACHE
Arr-Disable-Session-Affinity
Edge-Cache-Tag
X-Debug
X-Hits
X-Varnish-Age
X-Mrf-Item-Lastmod
X-B3-TraceId-Primal
X-Mrf-Section-Lastmod
MRF-Tech
Mrf-Cache-Status
X-Oracle-Dms-Rid
X-N
X-Aspnet-Version
X-Goog-Storage-Class
X-MSEdge-Ref
X-NF-Request-ID
X-Dw-Request-Base-Id
X-Acc-Meta-Resource-Type
X-Via-JSL
Access-Control-Request-Method
TCN
X-Id
X-XRDS-Location
S
X-NewRelic-App-Data
X-ATG-Version
X-FTR-Realm
X-FTR-DC
X-FTR-Backend
X-FTR-Cache-Status
X-Country-Code-Real
X-FTR-Balancer
X-FTR-Backend-Server
Service-Worker-Allowed
X-FTR-Expires
X-Logged-In
X-Oneagent-Js-Injection
Alternate-Protocol
X-FastCGI-Cache
X-Forwarded-For
X-HS-Content-Id
X-HS-Hub-Id
X-PressLabs-Stats
Tracecode
X-Kinsta-Cache
X-Frontend
Surrogate-Key
Rt-Fastcgi-Cache
AMP-Access-Control-Allow-Source-Origin
X-Content-Digest
X-Cache-Key
X-Pad
X-FTR-Cache-Host
X-Grace
MicrosoftSharePointTeamServices
X-RateLimit-Remaining
Fastly-Restarts
X-Edge-Location
X-Amzn-Trace-Id
Server-Name
X-CF-Powered-By
X-Analytics
Backend-Timing
Fastcgi-Cache
X-Ruxit-Js-Agent
Ar-Sid
FilterID
TP-L2-Cache
Host
TP-Cache
X-Content-Options
X-Cache-2
X-User-Agent
X-Rid
X-Magnolia-Registration
X-Whom
ServerID
X-B3-Sampled
X-Debug-Info
X-IPLB-Instance
X-Revision
Eomportal-Instance
X-Page-Id
X-Mobile
X-Hostname
X-Request-Received
X-Request-Processing-Time
X-Srv
AR-Request-ID
X-NWS-LOG-UUID
X-VCache
X-Akam-SW-Version
Paypal-Debug-Id
X-AOL-HN
Front-End-Https
Retry-After
X-Litespeed-Cache
Refresh
X-URL
X-B-Cache
X-Signature
X-Content-Powered-By
X-Device-Type
X-LB-Cache
X-Cache-Action
X-Framework
Source
Cleartype
X-SS-Set-Cookie
X-FB-Debug
X-Request-Guid
X-Handled-By
X-Cluster
X-WA-Info
X-Instance
X-App-Environment
X-Varnish-Hostname
X-BCube-Filmed-By
X-Tumblr-Pixel-0
X-Akamai-Edgescape
X-Tumblr-Pixel
X-Tumblr-User
X-Varnish-Grace
X-Cache-Control
X-Correlation-Id
X-Platform-Server
X-Cache-Hit
X-Content-Security-Policy-Report-Only
X-HS-Cache-Config
X-GUploader-UploadID
Webserver
X-Az
X-AppVersion
X-Activity-Id
X-Zen-Fury
X-XRDS-LOCATION
X-Sol
Display
X-Middleton-Display
X-Varnish-Backend
X-Content-Type
VIX-Pulpo-Node
VIX-Pulpo-Upstream-Status
Healthy
X-Fastcgi-Cache
X-Cache-Rule
X-Cache-Server
X-TA-CDN-Provider
X-Daa-Tunnel
X-Seen-By
ViewerVersion
Response
X-Cache-Age
X-Wix-Request-Id
X-Middleton-Response
X-Drupal-Cache-Tags
X-Varnish-Server
X-TT
Upgrade-Insecure-Requests
X-App-Server
X-Drupal-Cache-Contexts
X-Generated-By
X-Cached-By
X-Geo-Country
X-Origin-Server
Cache-Status
X-CACHE-GROUP
Accept-Charset
S-Cnection
Server-Node
X-DataStream-Cache-Status
X-Amz-Apigw-Id
X-Amzn-RequestId
X-Amz-Replication-Status
X-Accel-Expires
X-Esi
Payment
X-UA-Device-Type
X-Response-Served-From
NGB
Filters
X-S
Access-Control-Allow-Method
GEO-INFO
X-Cacheable-TTL
X-Servedby
X-Contextid
X-Edge-Cache
X-Edge-Cache-Key
X-Adobe-Loc
X-Adobe-Content
X-Locale
Viewport
X-Jobs
X-Status
X-Varnish-IP
X-UUID
X-RequestSource
X-Cache-NE
ServedBy
X-FW-Server
X-FW-Serve
X-FW-Static
X-FW-Type
X-TT-TIMESTAMP
X-FW-Hash
X-Varnish-Hits
Actual-Object-TTL
X-TX-ID
X-Tumblr-Pixel-1
Cache-Tv-Group
X-Storage
X-Tumblr-Pixel-2
Server-Info
X-Amz-Server-Side-Encryption
X-WebKit-CSP-Report-Only
AsisCache
X-GeoIP
X-PHP-Backend
X-WPE-Loopback-Upstream-Addr
MS-CV
X-Dns-Prefetch-Control
HostName
X-Node-Name
X-Cache-Remote
X-Cache-TTL-Remaining
X-Rendered-As
X-Croise-Owner
Cache
X-App-Version
From-Origin
Host-Header
SRV
X-Region
X-Cache-Operation
X-Vg-Webcache
X-Hyper-Cache
X-Webkit-CSP
X-Redis-Cache
X-APP-VERSION
Served-By
X-Dynatrace-Js-Agent
X-Guploader-Uploadid
Liferay-Portal
Public-Key-Pins-Report-Only
Cache-Tag
DC
X-HS-Combine-CSS
X-BACKEND-TTL
X-CACHE-KEY
X-Akamai-Transformed
X-Is-Bot
X-Timing-Wait
X-TNCMS
X-IP
X-Site-Version
X-RN-RSRV
X-Human
X-Forwarded-Host
X-Agile
X-Agile-Age
X-Agile-Id
X-Cache-Var
Selected-FE
X-Upgrade-Enabled
Machine
X-Path-Route
Meta-Geo
X-Cache-Var-Map
X-NGENIX-Cache
X-Mode
X-Generated
X-Proxy-Build
X-Loop
X-Detected-As
X-Grey
X-Environment-Context
X-Web-Node
Cache-Name
X-Cache-Category-Id
Xserver
Now
X-Internal-Host
X-BYPASS-REASON
X-CDN-Cache
X-Endurance-Cache-Level
X-Hosted-By
X-Request-Time
X-Vgn-Hpd-Reason
X-Upstream-CT
X-Webstats-RespID
X-Labrador-Cache-Channel
X-Via-Fastly
X-Pc-Key
X-Original-Request
X-Pc-Appver
X-Pc-Hit
Pagespeed
X-Upstream-HT
X-ProxyCache-Key
X-L-Path
X-ProxyCache-Status
Powered-By-ChinaCache
X-JoinUs
S-Rt
X-ProcessESI
X-VG-TLSProxy
X-NCache
X-Origin-Response-Time
X-Birta-Cache-Post
X-UA
X-Birta-Served
X-RemovedCookies
Origin-Cache-Control
X-Origin-Host
X-Akamai-Request-ID
DB-Nickname
X-Time-Microsecs
Origin-Edge-Control
X-Pubstack
X-Origin
X-ServerID
X-Via-CDN
Fastcgi-X-Cache-Version
Mn-Server-Ip
Fastcgi-X-Cache
X-Origin-CC
X-Www-Served-By
X-FC-Vary-Parameters
X-Viewer-Country
X-Tumblr-Pixel-3
X-Xfnlog-Site
Azure-InstanceId
Azure-RegionName
X-Proxy
X-Backend-Name
Azure-Version
X-Cache-Config
X-CCM
Azure-SiteName
Azure-SlotName
X-Ocache
X-B3-Spanid
Fastcgi-Useragent
X-Format
Cache-Tags
Webcakes-Region
X-Access
Webcakes-App-Version
Content-Script-Type
TWC-Locale-Group
TWC-Privacy
Content-Style-Type
Webcakes-App-Name
X-Yottaa-Optimizations
X-PCL
X-Parent-Response-Time
X-Tb
X-OCL
X-Kong-Proxy-Latency
X-App-Name
X-Yottaa-Metrics
X-Section
X-Origin-Hint
X-Kong-Upstream-Latency
TWC-Device-Class
TWC-GeoIP-LatLong
TWC-GeoIP-Country
Property-Id
TWC-Connection-Speed
HitType
X-Proxied
X-Protected-By
X-Routing-Service
X-Zipkin-Id
Cache-Key
X-Rule
X-TIME
X-Edge-IP
Datacenter
Vix-Hermes-Req-Id
X-Nginx-Cache
X-Cache-TTL
OT-Force-Account-Verify
User-Cache-Control
X-ShopId
X-ShardId
Ms-Operation-Id
X-Alternate-Cache-Key
X-RTag
X-Sorting-Hat-ShopId
X-Shopify-Stage
X-Sorting-Hat-PodId
X-Ezoic-Cdn
X-Akamai-Request-ID2
X-PERF
X-RateLimit-Limit
X-Cache-Backend
X-Cdn-Forward
X-ApacheServer
X-FB-TRIP-ID
X-Real-IP
Time
NtCoent-Length
X-Pc-Date
X-Pc-Host
X-Newrelic-App-Data
X-OVcl
X-OVcl-Cache
Accept-Language
X-Mshield-Cache-Status
X-Mrs-Cache-Hits
X-Unique-Id-Primal
L5d-Success-Class
X-Mrs-Age
X-Mrs-Cache
X-Front
AR-SID
X-Webkit-Csp
X-Content-Age
X-Real-Ip
Country
X-Correlation-ID
Load-Balancing
LB
X-Proto
X-Varnish-Cacheable
X-Ratelimit-Limit
X-Debug-Cache
Section-Io-Cache
X-Nc
X-Varnish-Beresp-Ttl
X-Varnish-Beresp-Grace
X-Varnish-Beresp-Status
Ohc-File-Size
X-CDN-Forward
X-Amz-Meta-Surrogate-Control
Fusion-Component-Id
Fusion-Content-Source
Fusion-Content-Id
Fusion-Source
Fusion-Template-Id
X-Unique-ID
X-Sucuri-ID
X-Hit
WZWS-RAY
X-MP-GENERATED-AT
X-Hl-Ver
X-GRACE
Mail-Subject
X-Trace-Id
We-Hiring
Version
Warning
X-CLOUD-TRACE-CONTEXT
User-Agent
X-Microcachable
X-Time
X-Geo
X-C
X-Accel-Expires-Debug
X-Actual-URL
X-Aed
X-Store
Www
X-A-Wwc
X-A-Dam
X-A-Ccd
X-A-Dcw
X-SRCache-Key
X-A-Dgt
X-A
X-Application
X-Cache-Host
X-Cache-FS-Status
X-Cache-Id
X-Cache-URL
X-CF-Lambda-Fn
X-Cache-Expires
X-Cache-Debug
X-Auto-Login
X-B-Cookie
X-BB-ID
X-Bip
VivaBuild
V-Age
Platform
PFcat
Powered-By
X-Thanos
Rendered-Blocks
Release
X-Thinkindot-L3
Node
Is-Eu
IBM-Web2-Location
MD5-Digest
Meta-Geo-Continent
Mobile-Detection-Method
Request-Time
Resin-Trace
Thinkindot-CacheControl
SS
Thinkindot-CacheControl-Type
Thinkindot-Control
X-CF-Lambda-Version
X-Swa-Ws
Server-ID
RNT-Time
RNT-Machine
Rt-Proxy-Cache
X-Response-By
Server-Host
Viewtype
X-Crawler
X-Returned-From-DLL
X-Returned-From-PostProcessResponse
X-Returned-From-BeforeDispatch
X-P-T
X-Passed-To
X-Rewrite-Enabled
X-Rojux
X-Node-Id
X-S-Maxage
X-S-Cookie
X-NU-AKA-ACS-Version
X-Org
X-Passed-To-BeforeDispatch
X-Passed-To-DLL
X-Reboot
X-Rebelmouse-Surrogate-Control
X-Region-Sid
X-Release
X-Request-UUID
X-Rebelmouse-Cache-Control
X-RCS-CacheZone
X-PAYTM-SRV-ID
X-Passed-To-PostProcessResponse
X-PHP-Host
X-Returned-From
X-Qloud-Router
X-ScT
X-Served-From
X-Dispatcher-Server
X-Died
X-DPWN-IS-SECURE
X-External-Request-Id
X-Fetched-On
X-Device-Os
X-Developer
X-CUA
X-Transaction
X-D
X-Date
X-Destination
X-From
X-FW-Version
X-LI-UUID
X-LI-Proto
X-Logtrace-Id
X-Matched-Rule
X-Server-By
X-Li-Pop
X-Li-Fabric
X-G
X-Server-Time
X-Generated-In
X-Goog-Meta-Goog-Reserved-File-Mtime
X-Connection-Hash
SD-X-WS
Fastly-SWR
X-User
Fastly-SIE
Fastly-Backend-Name
Fly-Cache
Fly-Request-Id
X-Trv-Group
X-TT-LOGID
Frame-Options
Access-Control-Request-Headers
Adler-Geo
X-UE-Client-Country
Cache-Prefix
X-Ua
X-Twitter-Response-Tags
BehaviorPad-Version
Ec-Rule-Version
Ajk
Arc-Country
X-Variation
X-Var-Ttl
X-Via-NSCOPI
X-WebServer
X-VG-WebServer
X-We-Are-Hiring
X-Via-SSL
X-Via-Edge
X-EdgeConnect-Cache-Status
X-Varnish-Action
Xc-Version
Pagetype
X-Dc
Cache-Cookie-Set-From
X-Layer
AKAMAI
X-Distributor
X-SVT-ORM-RULES
X-ServiceProvider
X-Key
Web-Mar-Node
X-Clientip
X-Sf
X-IN-WAF
X-Hash
X-SVT-ORM-VERSION
X-Cache-Bucket
X-GeoIP-Country-Code
X-Backend-State
X-Server-IP
X-Server-Group
X-Cache-CFC
X-Fstrz
X-Info
X-IN-SSL-APIGATEWAY
X-Cache-Enabled
X-IN-APIGATEWAY
X-Stale
X-UnsetCookies
Cache-Cookie-Set-Lfrom
GMS-Ver
X-No-Session
Memcached
MI-API
True-Client-Country-4JS
Origin
On-Server
MI-Cache-Age
GW-Server
Kp-EeAlive
X-Proxy-Cache-Status
X-Proxy-Upstream
X-Request-Start
Heartbleed
X-Rocket-Nginx-Bypass
X-Origin-Date
X-Origin-Expires
X-Nginx-Cache-Key
MI-Cache
Decoy-Debug-Status
Decoy-Debug-TTL
X-Location
Countrycode
Country-Code
Cache-Cookie-Set-Idcheck
Server-Int
Content-Disposition
Esi-Enabled
Decoy-Debug-Key
Proxy-Connection
Fastly-SSL
X-MI-In-Market
X-Be
X-NODE
X-ElasticPress-Search
X-Secret
Backend-Name
X-Hnp-Log
X-F5-Cache
X-Request-URI
X-Policy
X-Eu-Site
X-SIPLIST1
X-Epic-Correlation-Id
X-Page-Type
X-Gannett-Site-Version
X-MSEdge-Features
X-Gen-Mode
X-Svr
X-Distil-CS
X-MSEdge-Flight
Who
X-Phone
X-Core-Mission
X-V
X-Amz-Meta-Cache-Control
Pramga
X-Backend-Host
X-Backend-Url
HA-Host
HA-Ipaddr
Magicmarker
HA-Servedtime
X-Up
REQUESTUUID
HA-Cloudapp
IsBot
HA-Geocity
HA-Geocountry
HA-Urlpath
Backend
Ha-Gx-Prefs
X-Block-Status
X-CGP
HA-Geolat
X-Core-Value
HA-Geolon
HA-Georegion
Apple-News-Services-Request-Url
Apple-News-Services-Parsed-Url
X-Irp-Debug
Apple-News-Services-Host
X-Debug-Log
X-Debug-Cookies
X-Debug-Cache-Store
Apple-News-Services-Handled
X-Origin-TTL
X-Refresh
X-Developers
CDCHOST
Fastly-Soc-X-Request-Id
X-Micro-Cache
X-NX-Host
X-Debug-Cache-Expiry
X-Cdn-Origin
X-Debug-Cache-Fetch
X-Platform
X-Generated-On
X-Sn-Servicetimems
Pragrma
X-Level-Front-Cache
X-Fastly-Cache
Locale
X-Planisys-CDN-TTL
ServerName
X-Instart-Info
X-Planisys-CDN-Rules
X-Planisys-CDN-Cache
X-DC
Request-Country
UCS
Uber-Trace-Id
X-Instance-Name
X-Urbn-Site-Id
X-Servername
X-COUNTRY
RequestId
X-Urbn-Context-Path
X-Wikidot-Static-Cache
X-Wikidot-Backend
Request-EU
X-VarnPar1
Lfy
X-Pjax-Url
Host-ID
X-Server-Cache
Ohc-Response-Time
X-NWS-UUID-VERIFY
X-VarnCache
X-PARISIEN-Cache-Rendered
Group
PageSpeed
V-Cache
X-Cache-Info
X-VCT
X-GeoIP-City
X-CACHE-AGE
X-NC
X-Cdn-Srv
X-Req
X-ARC
X-Newrelic-Synthetics
HitInfo
X-Datadome
MIME-Version
Cache-Provider
Cdn
Mime-Version
Cteonnt-Length
Memory
X-CMS-Context
X-BBXSRF
X-Powered-By-ANYU
PICS-Label
X-Servedbyhost
X-Gdpr
X-Ratelimit-Remaining
X-EIG-Tracking-Id
X-TWH-CORRELATION-ID
X-LAGOON
Nel
X-WR-MODIFICATION
X-Aicache-OS
X-Wa
X-StackifyID
NGX
CF-IPCountry
GeoIP-Country-Code
GeoIP-Latitude
X-HTML-Minification-Powered-By
X-Load-Cache
X-B3-Traceid
CDN
X-Fastly-Country-Code
Cf-Ipcountry
X-UPSTREAM-Address
XServer
X-Cluster-Node
X-CSRF-TOKEN
X-FireWall-Port
X-Fastly-Backend-Reqs
X-Varnish-Cache-Hits
FSS-Cache
FSS-Proxy
X-RateLimit-Limit-Second
X-WA
X-NodeID
X-Generation-Time
X-RateLimit-Remaining-Second
X-Sentry-ID
X-Flog
Amp-Access-Control-Allow-Source-Origin
X-Cache-Miss-From
X-Check-Cacheable
X-Sedo-Request-Id
X-Hello
X-VServer
Geoip-Latitude
GeoIp-Country-Code
X-ABtesting
Processtime
X-Csrf-Token
X-Unique-Id
SN
X-Cache-Grace
X-Source
X-HOST
X-Varnish-Beresp-TTL
CACHE
WP-Super-Cache
X-APP
X-Oss-Server-Time
X-Oss-Storage-Class
Server-Cache-Control
X-CDN-Pop-IP
X-CDN-Pop
X-ServedByHost
X-Oss-Request-Id
X-Oss-Object-Type
X-GZip
X-Varnish-Authentication
X-Cache-ASPX
Server-Surrogate-Control
X-Oss-Hash-Crc64ecma
X-DataStream-MidMile-RTT
X-Nananana
X-DataStream-Origin-MEX-Latency
X-IPS-LoggedIn
X-GDPR
TSSecure
X-RCS-Backend
X-CSRF-Token
URI
X-Dynatrace
Pics-Label
X-SRV
X-VC-Cache
X-Worker
X-FORWARDED-FOR
Cdn-Host
Cdn-Request-Time
X-MServer
X-Edge-Server
X-Varnish-Url
X-Skip-Cache
X-ID
DataCenter
A
X-VG-WebCache
X-HS-Status
X-ND-Cache
X-Instart-Isnd
X-Fastly-Cache-Hits
Is-Session-Tracking
Get-Access-Time
X-GoCache-CacheStatus
X-B3-SpanId
X-From-Cache
PageType
X-Sucuri-Cache
X-BE
X-Swift-Error
Proxy-Firewall
Hostname
Dynatrace
HTTPS
X-PJAX-URL
X-Port
X-LJ-Flow-ID
X-SplitTest
X-VWS-Id
X-AWS-Id
X-Bug-Bounty
X-Server-W
Powered
X-Gen-Id
X-Amzn-Remapped-Connection
X-Backend-TTL
X-Pf-Uncompressing
X-GZIP
Odigeo-Trace-Id
X-Amzn-Remapped-Date
X-ORIG-AKA-EDGE
X-NGINX-Cache
X-SN
X-Fe
Requestid
X-Cache-Ttl
X-VarnPar2
X-Owner
X-Pc-Subdomain
X-Amz-Meta-S3b-Last-Modified
Serverid
Cache-Hits
X-RequestId
X-PF-Uncompressing
X-LiteSpeed-Cache-Control
X-Alicdn-Da-Ups-Status
X-PAGE-TYPE
X-Varnish-URL
X-ServerName
X-RAMCache
X-SB
X-Serial
X-Dw-Trace-Id
WebServer
X-VC
X-HostName
RequestUuid
T-Server
X-ORIG-AKA-COUNTRY-CODE
X-GEO
X-Ms-Lease-Status
Xet-Cookie
X-Ms-Blob-Type
Correlation-Id
X-R9-Blue-Green-Version
X-FW-Dynamic
X-Ms-Version
X-Ms-Request-Id
X-Akamai-SSL-Client-Sid
X-HTML-Edge-Cache
X-Akamai-ERPolicy
X-Akamai-ERRuleID
Location
NnCoection
X-CS
X-LiteSpeed-Tag
X-Developed-By
SID