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
CF-RAY
Link
X-XSS-Protection
ETag
Expect-CT
Via
Age
X-Cache
Content-Security-Policy
Access-Control-Allow-Origin
Content-Language
P3P
X-Cache-Hits
X-Amz-Cf-Pop
X-UA-Compatible
X-Amz-Cf-Id
Referrer-Policy
X-Served-By
X-Varnish
CF-Cache-Status
X-Request-Id
X-Timer
X-FRAME-OPTIONS
Access-Control-Allow-Headers
Access-Control-Allow-Methods
X-AspNet-Version
X-Download-Options
Access-Control-Allow-Credentials
X-Runtime
X-Drupal-Cache
X-Adblock-Key
Alt-Svc
X-Check
X-Cacheable
X-Xss-Protection
X-Generator
Content-Security-Policy-Report-Only
X-Cache-Status
X-Permitted-Cross-Domain-Policies
X-Ua-Compatible
X-AspNetMvc-Version
Status
Timing-Allow-Origin
X-Template
X-Language
Content-Encoding
X-DNS-Prefetch-Control
X-Request-ID
X-Iinfo
X-Content-Security-Policy
Upgrade
X-Buckets
Xkey
P3p
X-Kinja-Server-Push
X-CDN
X-Turbo-Charged-By
Access-Control-Expose-Headers
X-Via
Keep-Alive
Access-Control-Max-Age
X-AH-Environment
CF-Ray
X-Pass-Why
X-Drupal-Dynamic-Cache
X-Cache-Group
X-Age
X-Backend
X-Server
X-Amz-Request-Id
X-Amz-Id-2
X-Robots-Tag
X-Page-Speed
X-Pingback
X-Envoy-Upstream-Service-Time
X-Hacker
X-Varnish-Cache
X-Server-Powered-By
EagleId
X-Nginx-Cache-Status
X-Proxy-Cache
Grace
X-UA-Device
WPE-Backend
Request-Context
Cf-Railgun
X-Swift-SaveTime
X-Swift-CacheTime
X-Amz-Version-Id
Ali-Swift-Global-Savetime
X-Server-Id
X-LiteSpeed-Cache
X-Device
X-Styx-Req-Id
X-Pantheon-Styx-Hostname
X-OneAgent-JS-Injection
X-WebKit-CSP
X-Node
X-Ac
Feature-Policy
X-Rq
Content-Location
X-Host
EagleEye-TraceId
Server-Timing
X-Cnection
Allow
Report-To
X-Backend-Server
X-Response-Time
X-Cache-Lookup
X-Dns-Prefetch-Control
X-Application-Context
Request-Id
Surrogate-Control
X-Readtime
X-ORACLE-DMS-ECID
X-Cloud-Trace-Context
X-Origin-Cache
Pinterest-Generated-By
X-CST
X-FTR-Request-ID
X-Rack-Cache
X-Ruxit-JS-Agent
NEL
X-Vhost
X-HW
X-Clacks-Overhead
X-Country
X-Country-Code
X-DynaTrace
Rating
X-Instart-Request-ID
X-EdgeConnect-MidMile-RTT
X-EdgeConnect-Origin-MEX-Latency
X-Goog-Hash
X-Mod-Pagespeed
X-Cdn
X-Dispatcher
X-Url
X-Origin-Upstream-Status
X-DataDome
Edge-Control
Accept-CH
X-VARITI-CCR
X-Px
X-PC
X-TtlSet
X-Vname
Service-Worker-Allowed
X-MS-InvokeApp
Verso
X-Server-Name
X-GoogleNews-Bot
X-Kinja
X-Kinja-Revision
X-Exp-Id
X-Kinja-Server
X-Use-Magma
X-Exp-Variant
X-Cdn-Fetch
X-Kinja-Build
X-Varnish-TTL
X-DataStream-Cache-Status
X-Powered-By-Plesk
AR-ATIME
AR-PoweredBy
AR-CACHE
X-GitHub-Request-Id
MS-Author-Via
X-Vcap-Request-Id
X-Recruiting
Public-Key-Pins
X-ESI
X-ORACLE-DMS-RID
X-Amz-Server-Side-Encryption
AR-Request-ID
SPRequestGuid
X-D2id
PB-PID
Arc-Version
Content-MD5
X-Version
X-Mobile-Rewrite
PB-RID
X-Cached
RTSS
X-Abt-Application-Version
Nginx-Cache
X-DynaTrace-JS-Agent
DynaTrace
Ar-Sid
X-Upstream-Proxy
Pinterest-Version
X-Pinterest-Rid
X-Navigation-Version
X-SharePointHealthScore
Display
X-Middleton-Display
Response
X-Middleton-Response
X-Sol
X-Goog-Stored-Content-Length
X-Goog-Stored-Content-Encoding
X-Goog-Metageneration
X-Goog-Generation
X-Amz-Rid
Realpath
X-Oracle-Dms-Rid
Charset
X-XRDS-Location
X-Akam-SW-Version
X-B3-TraceId
X-Powered-CMS
X-Ttl
X-Forwarded-Proto
X-Client-IP
X-VCache
X-FTR-Balancer
X-FTR-DC
X-FTR-Realm
X-FTR-Cache-Status
X-FTR-Backend-Server
X-Country-Code-Real
X-FTR-Backend
ServerID
X-FTR-Expires
X-SRCache-Store-Status
X-SRCache-Fetch-Status
X-Ser
X-Shield-Request-Id
TCN
X-Amz-Meta-S3cmd-Attrs
X-Trace
X-Goog-Storage-Class
X-Debug
X-Id
Fusion-Template-Id
Fusion-Source
Fusion-Component-Id
Fusion-Content-Id
Fusion-Content-Source
X-TTL
X-Fastly-Request-ID
SPRequestDuration
X-Dw-Request-Base-Id
SPIisLatency
X-FTR-Cache-Host
X-TEC-API-ORIGIN
X-TEC-API-ROOT
X-TEC-API-VERSION
Alternate-Protocol
X-Hits
S
X-RateLimit-Remaining
Fastcgi-Cache
Paypal-Debug-Id
X-Litespeed-Cache
X-T
X-Upstream
X-Acc-Meta-Resource-Type
X-Varnish-Age
X-MSEdge-Ref
Host
X-Shard
X-NF-Request-ID
Accept-CH-Lifetime
MRF-Tech
Mrf-Cache-Status
X-B3-TraceId-Primal
X-Mrf-Item-Lastmod
X-Mrf-Section-Lastmod
X-Ezoic-Cdn
Access-Control-Request-Method
X-Logged-In
Front-End-Https
MicrosoftSharePointTeamServices
X-Content-Digest
Arr-Disable-Session-Affinity
X-Frontend
X-HS-Content-Id
X-HS-Hub-Id
X-DataStream-MidMile-RTT
X-DataStream-Origin-MEX-Latency
X-Amzn-Trace-Id
X-Fastcgi-Cache
X-Webkit-CSP
X-Iejgwucgyu
X-N
Server-Name
X-DIS-Request-ID
X-Kinsta-Cache
X-Pad
Tracecode
X-IPLB-Instance
X-Srv
X-Forwarded-For
X-Content-Type
X-B3-Sampled
X-Request-Handler-Origin-Region
X-Microsite
FilterID
X-Accel-Expires
Surrogate-Key
X-Type
X-Rid
X-Debug-Info
X-LB-Cache
TP-Cache
TP-L2-Cache
AMP-Access-Control-Allow-Source-Origin
X-Request-Received
X-Request-Processing-Time
X-Node-Name
X-AOL-HN
Backend-Timing
X-Analytics
Edge-Cache-Tag
X-Hostname
X-Via-JSL
X-Grace
X-Server-ID
Accept-Charset
X-Page-Id
X-Revision
X-Content-Options
X-Whom
X-GUploader-UploadID
X-Webkit-Csp
X-User-Agent
X-Cache-2
X-Varnish-Backend
Pagespeed
X-Content-Powered-By
Healthy
X-Cache-Age
X-Mobile
X-Content-Security-Policy-Report-Only
X-Framework
X-Cache-Rule
X-TT
Host-Header
X-Varnish-Hostname
X-PHP-Backend
X-Amz-Replication-Status
X-FB-Debug
X-Cache-Control
Powered
X-NWS-LOG-UUID
X-Tumblr-User
X-Request-Guid
X-Akamai-Edgescape
X-App-Environment
X-Cluster
VIX-Pulpo-Upstream-Status
VIX-Pulpo-Node
X-Tumblr-Pixel
Source
Upgrade-Insecure-Requests
X-Tumblr-Pixel-0
X-Correlation-Id
Cache-Status
X-Instance
X-BCube-Filmed-By
X-Cached-By
X-Varnish-Grace
X-RateLimit-Limit
PageSpeed
Fastly-Restarts
X-Amz-Apigw-Id
X-FastCGI-Cache
X-Amzn-RequestId
X-Cache-Hit
X-Az
X-AppVersion
X-Activity-Id
Access-Control-Allow-Method
X-Cache-Key
X-Drupal-Cache-Tags
X-Platform-Server
Cleartype
Server-Info
Retry-After
X-Zen-Fury
X-Jobs
X-Cache-Remote
Cache-Tags
X-Cache-TTL
X-ATG-Version
X-CF-Powered-By
X-FW-Type
X-FW-Serve
X-FW-Hash
X-FW-Static
X-FW-Server
X-Esi
X-Cache-Action
X-Oneagent-Js-Injection
X-B3-Traceid
X-Forwarded-Host
MS-CV
X-F-Cache
X-TA-CDN-Provider
Server-Node
X-Geo-Country
Actual-Object-TTL
Payment
X-URL
X-Response-Served-From
X-UA-Device-Type
X-WebKit-CSP-Report-Only
X-Adobe-Loc
X-Adobe-Content
X-RemovedCookies
X-ProcessESI
X-Real-IP
X-Storage
X-Content-Age
X-Tumblr-Pixel-2
X-TT-TIMESTAMP
X-Tumblr-Pixel-1
X-Varnish-Hits
X-TX-ID
X-Cache-Operation
Cache
X-VG-WebCache
X-Yottaa-Optimizations
Eomportal-Instance
X-Handled-By
X-Yottaa-Metrics
X-Cacheable-TTL
Filters
X-B
X-GeoIP
X-RequestSource
X-Cache-NE
DC
Refresh
Cache-Tv-Group
X-Redis-Cache
X-PressLabs-Stats
From-Origin
X-Daa-Tunnel
Cache-Tag
Frame-Options
Accept-Ch-Lifetime
X-Host-Name
X-Origin-Server
X-Kong-Upstream-Latency
X-Kong-Proxy-Latency
X-WA-Info
X-Guploader-Uploadid
X-UUID
Viewport
X-Git-Hash
Webserver
X-Accel-Buffering
X-Rendered-As
X-App-Server
Datacenter
X-FW-Dynamic
X-Varnish-Server
Country
X-Magnolia-Registration
Xserver
X-Locale
X-Mode
X-Contextid
X-B-Cache
X-Signature
X-Cache-TTL-Remaining
X-FB-TRIP-ID
X-Cache-Enabled
X-Region
X-Routing-Service
X-Www-Served-By
X-Zipkin-Id
X-Cache-Var
X-Rule
X-Vcache
X-Path-Route
X-XRDS-LOCATION
X-Hl-Ver
X-RN-RSRV
X-Cache-Var-Map
X-Proxied
Meta-Geo
GEO-INFO
X-Trace-Id
X-ES-SERVER
X-From
Load-Balancing
Machine
Cache-Key
X-Backend-Name
X-ProxyCache-Key
X-Is-Bot
NGX
X-ProxyCache-Status
X-Rocket-Nginx-Bypass
X-BYPASS-REASON
ServedBy
X-Goog-Meta-Goog-Reserved-File-Mtime
X-Detected-As
X-Cache-Config
X-ServerID
X-Upstream-HT
X-Ua
X-Upgrade-Enabled
X-Upstream-CT
X-Viewer-Country
X-Web-Node
X-NCache
X-Debug-Cache
L5d-Success-Class
X-EIG-Tracking-Id
X-Via-Fastly
X-OCL
X-FC-Vary-Parameters
X-Environment-Context
Mn-Server-Ip
Uber-Trace-Id
X-PCL
Vix-Hermes-Req-Id
X-VG-TLSProxy
Origin-Edge-Control
X-MP-GENERATED-AT
Now
Origin-Cache-Control
X-Proto
X-R9-Blue-Green-Version
X-Hosted-By
X-L-Path
X-JoinUs
X-Labrador-Cache-Channel
X-Human
X-Access
X-Section
X-Device-Type
X-Cache-Category-Id
X-Tumblr-Pixel-3
X-Origin-Response-Time
X-Varnish-Cache-Hits
X-Site-Version
X-CCM
X-TNCMS
X-S
X-Varnish-IP
X-Generated
X-LJ-Flow-ID
X-Akamai-Request-ID
X-Loop
X-Drupal-Cache-Contexts
X-VWS-Id
X-RCS-CacheZone
X-Hit
X-Grey
X-AWS-Id
We-Hiring
Mail-Subject
X-VCT
X-Vgn-Hpd-Reason
Release
X-Timing-Wait
Selected-FE
DSUID
X-Proxy-Build
X-Cache-Host
Nel
X-Xfnlog-Site
DB-Nickname
X-EdgeConnect-Cache-Status
X-Pubstack
OT-Force-Account-Verify
Cteonnt-Length
X-Cache-Backend
X-NGENIX-Cache
X-APP-VERSION
X-Tb
HitType
Ms-Operation-Id
X-RTag
X-BACKEND-TTL
SRV
X-Nginx-Cache
Cache-Name
X-Generated-By
X-GRACE
X-UnsetCookies
Powered-By-ChinaCache
X-Format
X-Mobile-URL
X-Hp-Webp
X-Source
X-Seen-By
Rt-Fastcgi-Cache
Served-By
X-B3-Spanid
X-Cache-Grace
X-Proxy
X-NewRelic-App-Data
X-Cache-Server
X-Ratelimit-Reset
X-Birta-Served
S-Cnection
X-Presslabs-Stats
X-Birta-Cache-Post
X-Time
X-OVcl-Cache
X-Cluster-Node
X-Geo
X-OVcl
X-Time-Microsecs
X-IP
Azure-SiteName
Azure-InstanceId
Azure-Version
X-Akamai-Transformed
Azure-SlotName
Azure-RegionName
X-Origin-Hint
X-PERF
X-Via-CDN
X-ApacheServer
Access-Control-Request-Headers
TWC-Locale-Group
TWC-GeoIP-LatLong
TWC-Privacy
Webcakes-App-Name
Webcakes-App-Version
TWC-GeoIP-Country
TWC-Device-Class
X-FW-Version
Webcakes-Region
Property-Id
TWC-Connection-Speed
Fastcgi-Useragent
S-Rt
X-Origin
X-SS-Set-Cookie
Hostname
X-B3-Parentspanid
X-App-Version
X-Request-Time
Cache-Hits
NGB
Version
X-Shopify-Stage
Decoy-Debug-Status
X-Sorting-Hat-ShopId
Origin
Decoy-Debug-Key
X-ShopId
X-Alternate-Cache-Key
X-Endurance-Cache-Level
X-Ruxit-Js-Agent
Ec-Rule-Version
Proxy-Connection
Decoy-Debug-TTL
X-WPE-Loopback-Upstream-Addr
X-AssetVersion
X-ShardId
X-Sorting-Hat-PodId
X-Origin-TTL
User-Cache-Control
X-Origin-CC
X-A-Ccd
Cache-Cookie-Set-From
X-A-Dam
X-A
Web-Mar-Node
Www
X-A-Dcw
Cache-Cookie-Set-Idcheck
X-A-Wwc
AsisCache
X-ARC
X-B-Cookie
X-Application
X-Aed
VivaBuild
BehaviorPad-Version
X-Accel-Expires-Debug
X-A-Dgt
Viewtype
IsBot
FNAC-ModuleRouting
Fly-Request-Id
X-BBXSRF
MD5-Digest
Rendered-Blocks
Node
Meta-Geo-Continent
Server-Int
Fly-Cache
Thinkindot-CacheControl-Type
Thinkindot-Control
Rt-Proxy-Cache
Thinkindot-CacheControl
Cache-Prefix
Cross-Origin-Window-Policy
Content-Style-Type
Content-Script-Type
Cache-Cookie-Set-Lfrom
X-Connection-Hash
X-Served-From
X-ScT
X-Server-Time
X-ServiceProvider
X-SIPLIST1
X-S-Cookie
X-Rojux
X-Processor
X-Planisys-CDN-TTL
X-Region-Sid
X-Request-UUID
X-Rewrite-Enabled
X-Sn-Servicetimems
X-SRCache-Key
X-Vtex-Processado-Em
X-Via-NSCOPI
X-Vtex-Remote-Cache
X-Worker
Xc-Version
X-VG-WebServer
X-VC-Cache
X-Thinkindot-L3
X-Swa-Ws
X-Transaction
X-Trv-Group
X-Twitter-Response-Tags
X-Planisys-CDN-Rules
X-Planisys-CDN-Cache
X-D
X-Core-Value
X-Date
X-Destination
X-DPWN-IS-SECURE
X-Core-Mission
Arc-Country
X-Cache-Info
X-Cache-Bucket
X-Cdn-Origin
X-CF-Lambda-Fn
X-CF-Lambda-Version
X-External-Request-Id
X-G
X-NU-AKA-ACS-Version
X-ND-Cache
X-Org
X-PAYTM-SRV-ID
X-Phone
X-Matched-Rule
X-Irp-Debug
X-Hnp-Log
X-Gen-Mode
X-IN-APIGATEWAY
X-IN-WAF
X-Instart-Info
X-Block-Status
X-Developer
Apple-News-Services-Handled
X-Cdn-Forward
Apple-News-Services-Host
Apple-News-Services-Request-Url
Apple-News-Services-Parsed-Url
IBM-Web2-Location
X-Varnish-Cacheable
WZWS-RAY
X-ElasticPress-Search
X-Distil-CS
X-Gannett-Site-Version
X-Distributor
X-Generated-On
X-Fetched-On
X-GeoIP-City
X-Key
X-Level-Front-Cache
X-Instart-Isnd
X-Hash
X-Developers
X-Geo-Header
X-Debug-Cookies
X-Amz-Meta-Cache-Control
X-App-Name
X-Microcachable
V-Age
UCS
X-Bip
X-Cache-Debug
X-Cdn-Srv
X-Nginx-Cache-Key
X-Cache-Id
X-Cache-FS-Status
X-Cache-Expires
X-Debug-Log
X-NX-Host
X-Fastly-Cache
X-Thanos
X-Status
X-Sf
X-Secret
X-Server-IP
X-Var-Ttl
X-Via-Edge
X-Wikidot-Static-Cache
X-Cluster-Name
X-Wikidot-Backend
X-Webstats-RespID
X-Via-SSL
X-S-Maxage
X-Request-URI
X-UA
X-PHP-Host
X-Page-Type
X-Owner
X-Origin-Date
True-Client-Country-4JS
X-Protected-By
X-Qloud-Router
X-Release
X-Reqid
X-Reboot
X-Rebelmouse-Surrogate-Control
X-Rebelmouse-Cache-Control
X-No-Session
X-Origin-Expires
AKAMAI
CDCHOST
Request-Country
Request-Time
Backend
RNT-Time
RNT-Machine
REQUESTUUID
Pramga
Country-Code
Fastly-SWR
Memcached
Gh-Request-Id
Fastly-SSL
On-Server
Esi-Enabled
Fastly-SIE
Server-Host
Request-EU
ServerName
X-Info
X-FireWall-Port
X-Nc
X-Li-Fabric
X-Crawler
Ha-Gx-Prefs
Content-Disposition
Adler-Geo
X-WebServer
Is-Eu
Wxu-Next-Region
X-CGP
X-Li-Pop
Backend-Name
Wxu-Next-Commit
Wxu-Next-Hostname
ProcessTime
X-Skip-Cache
X-SN
X-Refresh
Fastly-Soc-X-Request-Id
X-Generation-Time
X-GeoIP-Country-Code
X-TH-Server
X-Eu-Site
X-Device-Os
Resin-Trace
X-Dispatcher-Server
Platform
X-Epic-Correlation-Id
X-Variation
X-Cms-Context
X-LI-UUID
X-C
HA-Ipaddr
X-Agile-Id
SD-X-WS
X-Agile-Age
X-Auto-Login
HTTPS
X-Backend-State
X-Agile
X-Location
X-CACHE-GROUP
X-TIME
X-LAGOON
Server-ID
GEO-REGION-INFO
Heartbleed
X-Policy
X-Varnish-Action
Fastcgi-X-Cache-Version
Epwk-Cache
X-CDN-Cache
X-FPC
X-Load-Cache
X-Micro-Cache
Memory
X-IPS-LoggedIn
X-HS-Combine-CSS
X-HS-Cache-Config
X-Dc
X-LI-Proto
Who
Time
X-Real-Ip
X-Internal-Host
NtCoent-Length
X-SVT-ORM-VERSION
X-NC
X-Servername
X-SVT-ORM-RULES
Group
X-Gdpr
Amp-Access-Control-Allow-Source-Origin
CF-IPCountry
Cache-Provider
Mime-Version
Cdn
X-AIR-PT
X-ZONE
X-CLOUD-TRACE-CONTEXT
X-Parent-Response-Time
HostName
Mobile-Detection-Method
X-Be
X-DC
X-Wix-Request-Id
X-Logtrace-Id
Ajk
X-RateLimit-Limit-Second
X-RateLimit-Remaining-Second
X-Apm-App-Name
X-Apm-Inst-Hash
X-Apm-Svc-Key
SS
AR-SID
X-CDN-Forward
X-NWS-UUID-VERIFY
X-Cache-URL
Countrycode
X-Clientip
X-Tb-Optimization-Total-Bytes-Saved
MIME-Version
X-We-Are-Hiring
Akamai-GRN
X-Servedbyhost
RequestId
Fastcgi-X-Cache
X-GEO
X-CACHE-KEY
X-Edge-Location
X-APP
X-UPSTREAM-Address
GW-Server
X-Ratelimit-Remaining
X-Varnish-Beresp-Ttl
Geoip-City
PICS-Label
GeoIp-Country-Code
Geoip-Latitude
X-NodeID
X-Dynatrace-Js-Agent
X-Newrelic-App-Data
Cf-Ipcountry
LB
X-Server-Group
X-VCL-Version
X-Zone
X-Amzn-Remapped-Date
A
X-Amzn-Remapped-Connection
X-Unique-ID
X-SD-PageType
CF-Cached-On
X-Vcl-Version
X-SERVER-NAME
X-Varnish-Beresp-TTL
WebServer
CDN
SN
X-Datadome
Liferay-Portal
X-Fastly-Country-Code
X-Pjax-Url
Ohc-File-Size
X-Response-By
Ohc-Cache-HIT
X-Varnish-Beresp-Grace
X-LiteSpeed-Cache-Control
X-Varnish-Beresp-Status
X-Fastly-Backend-Reqs
GeoIP-Country-Code
X-Up
GeoIP-Latitude
X-RequestId
X-Aicache-OS
GeoIP-City
X-Lb-Id
X-Pf-Uncompressing
X-Cache-Ttl
X-Newrelic-Synthetics
X-HS-Status
X-B3-SpanId
X-Amzn-Remapped-Content-Length
X-CSRF-TOKEN
Get-Access-Time
Is-Session-Tracking
XServer
X-Server-W
X-Akamai-Request-ID2
X-FORWARDED-FOR
X-Ratelimit-Limit
X-Wa
X-MSEdge-Features
X-Web-Server
Server-Surrogate-Control
X-Contensis-Viewer-Groups
Server-Cache-Control
Requestid
X-Cache-ASPX
X-Backend-Url
X-Backend-Host
X-Varnish-Authentication
X-MSEdge-Flight
X-ECACHE
Proxy-Firewall
Accept-Language
X-Fstrz
X-Hyper-Cache
Odigeo-Trace-Id
X-ServedByHost
X-SRV
X-Check-Cacheable
X-Oss-Storage-Class
X-Debug-Cache-Store
X-F5-Cache
X-Oss-Server-Time
X-Request-Start
X-Oss-Object-Type
X-Oss-Hash-Crc64ecma
X-User
X-Gateway-Cache-Key
X-Backend-TTL
X-Debug-Cache-Expiry
X-Gateway-Skip-Cache
X-Oss-Request-Id
X-Gateway-Cache-Status
X-COUNTRY
X-Debug-Cache-Fetch
X-LB-ID
X-Nananana
Section-Io-Cache
X-Generated-In
X-WA
X-Correlation-ID
X-Dispatch
X-Sedo-Request-Id
286prxHost
352pxline
225prxHost
X-Method
189phosttRef
Locale
219prxHost
355prline
Pagetype
409pxxline
X-Cache-Miss-From
178proxuri
X-Urbn-Site-Id
Xxline
X-Urbn-Context-Path
188prxHost
X-WR-MODIFICATION
PFcat
Sid
Cdn-Host
X-Hello
Cdn-Request-Time
X-Exp-Se
X-Edge-Server
X-Flog
X-PF-Uncompressing
X-ABtesting
X-MServer
X-Platform
Correlation-Id
X-CS
TTL
Lfy
X-EC-Lua
Dnion-Transfer-Encoding
X-Got-Non-Ke-Cookie
X-LiteSpeed-Tag
X-PJAX-URL
Warning
X-VServer
X-Compress-Hint
CACHE
Kp-EeAlive
X-Dw-Trace-Id
X-ServerName
X-NGINX-Cache
Lb
Host-ID
X-Fpc
X-Svr
X-HTML-Minification-Powered-By
X-Html-Edge-Cache
X-BC
Powered-By
Pragrma
X-HTML-Edge-Cache
X-Li-Proto
X-Cdn-Cache
X-Swift-Error
X-Fastly-Cache-Hits
Pics-Label
X-Requestid
X-TrackingId
X-Test
X-Bc
Https
X-Azure-Ref-OriginShield
X-CUA
X-Azure-Ref
X-Bug-Bounty
X-BB-ID
X-CSRF-Token
Ttl
WP-Super-Cache
X-Proxy-Upstream
Cneonction
X-Unique-Id
X-TT-LOGID
X-Request-Url
X-Proxy-Cache-Status
X-Akamai-SSL-Client-Sid
X-Sucuri-Cache
Magicmarker
X-Alicdn-Da-Ups-Status
Fastly-Backend-Name
V-Cache
X-WADP-Cache
X-Powered-By-Defense
X-Clara-WADP
X-Cache-Detail
X-App
X-Sucuri-ID
FSS-Proxy
FSS-Cache
N-Cache
X-Via-Ucdn
Server-Id
X-GDPR
X-Gen-Id
X-From-Cache
X-Varnish-Url
X-Cache-Tag
X-Edge-IP
URI