Threat Level: green Handler on Duty: Manuel Humberto Santander Pelaez

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