Threat Level: green Handler on Duty: Didier Stevens

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