Threat Level: green Handler on Duty: Russell Eubanks

SANS ISC: HTTP Header Usage Statistics - SANS Internet Storm Center 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
Pragma
Last-Modified
Accept-Ranges
Strict-Transport-Security
X-Content-Type-Options
X-Powered-By
CF-RAY
ETag
Link
Expect-CT
Via
X-XSS-Protection
X-Cache
Age
Content-Security-Policy
Access-Control-Allow-Origin
Content-Language
X-UA-Compatible
P3P
X-Cache-Hits
X-Served-By
X-Varnish
X-Amz-Cf-Id
X-Xss-Protection
Referrer-Policy
X-Request-Id
X-Timer
X-AspNet-Version
CF-Cache-Status
Access-Control-Allow-Headers
Access-Control-Allow-Methods
X-Runtime
Access-Control-Allow-Credentials
X-Download-Options
X-Drupal-Cache
X-Cacheable
Content-Security-Policy-Report-Only
X-Generator
Alt-Svc
Status
X-AspNetMvc-Version
X-Cache-Status
X-DNS-Prefetch-Control
X-Check
P3p
X-Iinfo
X-FRAME-OPTIONS
X-Adblock-Key
X-CDN
Timing-Allow-Origin
X-Content-Security-Policy
X-Permitted-Cross-Domain-Policies
X-Turbo-Charged-By
Content-Encoding
X-Template
Keep-Alive
X-Language
X-Type
X-AH-Environment
X-Request-ID
X-Via
X-Cache-Group
X-Backend
WPE-Backend
X-Pass-Why
X-Buckets
X-Age
X-Server
X-Nginx-Cache-Status
Access-Control-Max-Age
X-Server-Powered-By
X-Pingback
Xkey
X-Varnish-Cache
Grace
X-Drupal-Dynamic-Cache
Upgrade
Access-Control-Expose-Headers
X-Hacker
X-UA-Device
X-Amz-Request-Id
Cf-Railgun
X-Page-Speed
X-Amz-Id-2
X-Proxy-Cache
X-Robots-Tag
X-Envoy-Upstream-Service-Time
EagleId
Request-Context
X-Node
X-LiteSpeed-Cache
X-Ac
X-Device
X-Swift-CacheTime
X-Swift-SaveTime
X-Cnection
X-Host
Ali-Swift-Global-Savetime
Content-Location
X-Amz-Version-Id
X-Pantheon-Styx-Hostname
X-Styx-Req-Id
X-WebKit-CSP
Surrogate-Control
X-Backend-Server
X-Server-Id
X-OneAgent-JS-Injection
X-Cache-Lookup
X-Rack-Cache
X-Response-Time
X-Px
X-Instart-Request-ID
Request-Id
Server-Timing
X-Readtime
X-CST
X-Rq
X-Url
X-Clacks-Overhead
X-Do-Not-Hack
Permitted-Cross-Domain-Policies
Pinterest-Generated-By
X-HeyJason
X-Ua-Compatible
EagleEye-TraceId
Edge-Control
X-Application-Context
X-Country
X-Cloud-Trace-Context
X-EdgeConnect-MidMile-RTT
X-EdgeConnect-Origin-MEX-Latency
X-MS-InvokeApp
Report-To
X-Server-Name
Charset
X-DynaTrace-JS-Agent
SPRequestGuid
X-ESI
X-Country-Code
Allow
X-DataDome
X-SharePointHealthScore
X-Ruxit-JS-Agent
Rating
X-Varnish-TTL
X-Vname
X-TtlSet
X-PC
X-Cached
X-Powered-CMS
X-Powered-By-Plesk
X-DynaTrace
X-Recruiting
X-CF-Powered-By
X-FTR-Request-ID
X-Vhost
NEL
X-D2id
X-TTL
X-Exp-Variant
Public-Key-Pins
X-Cdn-Fetch
X-Exp-Id
X-Kinja-Build
X-Geo-Segment
X-Kinja-Server
X-Kinja
X-Kinja-Revision
X-Pinterest-Rid
X-Upstream-Env
Pinterest-Version
X-F-Cache
X-Version
Cartoon
X-T
X-GoogleNews-Bot
X-VARITI-CCR
X-ORACLE-DMS-RID
X-ORACLE-DMS-ECID
X-N
X-Dw-Request-Base-Id
SPIisLatency
SPRequestDuration
X-Mod-Pagespeed
Content-MD5
X-Abt-Application-Version
RTSS
MS-Author-Via
Verso
Nginx-Cache
Feature-Policy
X-GitHub-Request-Id
X-Ttl
X-Dispatcher
X-Server-ID
X-Goog-Hash
X-Navigation-Version
X-SRCache-Store-Status
X-SRCache-Fetch-Status
X-Amz-Rid
X-Client-IP
MicrosoftSharePointTeamServices
Realpath
X-Hits
X-Forwarded-Proto
AR-PoweredBy
AR-ATIME
AR-CACHE
X-Cdn
X-Shield-Request-Id
X-Origin-Cache
X-Trace
Paypal-Debug-Id
DynaTrace
X-TEC-API-ORIGIN
X-TEC-API-ROOT
X-TEC-API-VERSION
X-Content-Options
X-Id
X-Grace
X-Zen-Fury
X-Content-Digest
X-Kinsta-Cache
TCN
X-B
Arr-Disable-Session-Affinity
Alternate-Protocol
AR-SID
X-Varnish-Age
X-Cache-Key
X-Sol
X-Upstream
MRF-Tech
X-Mrf-Section-Lastmod
X-Mrf-Item-Lastmod
Mrf-Cache-Status
Fastcgi-Cache
Access-Control-Request-Method
X-Acc-Meta-Resource-Type
X-Middleton-Display
Display
X-Pad
X-FastCGI-Cache
X-Ser
X-Fastly-Request-ID
X-Mobile-Rewrite
PB-RID
PB-PID
X-NF-Request-ID
X-Nf-Srv-Version
X-Via-JSL
X-Middleton-Response
Response
X-User-Agent
X-DIS-Request-ID
X-Vcap-Request-Id
X-Forwarded-For
X-MSEdge-Ref
Rt-Fastcgi-Cache
Eomportal-Instance
Front-End-Https
X-Cache-Rule
Pagespeed
X-Frontend
X-PressLabs-Stats
Arc-Version
X-Cache-Hit
X-SS-Set-Cookie
X-Logged-In
X-IPLB-Instance
X-Goog-Stored-Content-Encoding
X-Goog-Metageneration
X-Goog-Stored-Content-Length
X-Goog-Storage-Class
X-Goog-Generation
X-VCache
Server-Name
X-XRDS-LOCATION
X-Whom
X-Hostname
Host
Surrogate-Key
S
Tracecode
X-FTR-Cache-Status
X-FTR-Realm
X-FTR-DC
X-FTR-Backend-Server
X-FTR-Expires
X-FTR-Balancer
X-FTR-Backend
X-Country-Code-Real
X-Request-Received
X-Request-Processing-Time
X-Analytics
X-Litespeed-Cache
Backend-Timing
Cache-Status
X-Debug
X-HS-Content-Id
X-Magnolia-Registration
X-Instance
TP-L2-Cache
TP-Cache
X-AOL-HN
Refresh
X-Contextid
X-Rid
X-Activity-Id
X-Az
ServerID
X-Proxied
X-AppVersion
FilterID
X-Srv
X-HW
Public-Key-Pins-Report-Only
X-Wix-Server-Artifact-Id
X-B3-Traceid
X-XRDS-Location
HitType
Server-Info
HitInfo
X-UUID
Cleartype
X-WPE-Loopback-Upstream-Addr
X-APP-VERSION
X-FTR-Cache-Host
AMP-Access-Control-Allow-Source-Origin
X-Content-Security-Policy-Report-Only
Liferay-Portal
X-Mobile
Service-Worker-Allowed
X-Varnish-Server
X-Varnish-Backend
X-Cache-Control
X-Newrelic-App-Data
Served-By
X-Origin-Upstream-Status
Accept-Charset
X-Revision
Source
X-Amzn-Trace-Id
X-TT
X-Cache-Server
X-Tumblr-User
X-PHP-Backend
X-Request-Guid
X-Tumblr-Pixel-0
X-Tumblr-Pixel
X-PC-Hit
X-App-Environment
X-Geo-Country
Host-Header
X-Hail-Hydra
X-BCube-Filmed-By
X-PC-AppVer
X-PC-Key
Server-Node
X-Device-Type
Retry-After
X-Framework
X-Handled-By
X-Page-Id
MS-CV
X-Cache-2
X-Cache-Config
X-Varnish-Hostname
DC
X-Cache-Operation
X-Correlation-Id
X-B-Cache
X-Signature
X-RateLimit-Remaining
X-FB-Debug
X-Origin
Powered-By-ChinaCache
X-ATG-Version
X-Origin-Server
S-Cnection
Edge-Cache-Tag
X-HS-Cache-Config
Viewport
X-NWS-LOG-UUID
Fastly-Restarts
X-Cache-Action
X-TT-TIMESTAMP
X-Debug-Info
X-Ocache
X-Sucuri-ID
X-NewRelic-App-Data
X-PC-Date
X-PC-Host
Actual-Object-TTL
X-B3-Sampled
X-Hyper-Cache
X-Cached-By
X-WA-Info
NGB
X-ADI-VCache
X-Shield-Cache-Expires
X-Akam-SW-Version
X-Content-Powered-By
X-Microcachable
X-LB-Cache
X-Drupal-Cache-Tags
X-Accel-Expires
Upgrade-Insecure-Requests
AsisCache
X-Generated-By
Filters
X-Cache-NE
SRV
X-URL
ServedBy
X-Yottaa-Optimizations
X-Tumblr-Pixel-2
X-Distil-CS
X-WebKit-CSP-Report-Only
X-Tumblr-Pixel-1
X-Cache-Age
X-Yottaa-Metrics
X-App-Server
X-RTag
X-RequestSource
X-Internal-Host
X-FW-Type
X-FW-Static
X-FW-Server
X-FW-Serve
X-Locale
X-FW-Hash
X-Cacheable-TTL
X-Wix-Request-Id
Content-Script-Type
Content-Style-Type
X-Cluster
X-Seen-By
X-GeoIP
X-S
X-Jobs
X-Accel-Buffering
X-Node-Name
X-Amz-Server-Side-Encryption
X-TX-ID
X-Varnish-Hits
X-Geo
Cache
X-ServedBy
From-Origin
Datacenter
X-GUploader-UploadID
X-Varnish-Grace
X-UA
X-Varnish-Cache-Hits
X-Dns-Prefetch-Control
X-Varnish-IP
X-Adobe-Content
X-Adobe-Loc
X-Platform-Server
X-RateLimit-Limit
X-CLOUD-TRACE-CONTEXT
X-Akamai-Edgescape
X-Sucuri-Cache
X-GZip
X-Vg-Webcache
X-CDN-Forward
X-HS-Combine-CSS
X-Cache-TTL-Remaining
Cache-Tag
X-Edge-Cache
X-Webkit-Csp
X-Edge-Cache-Key
X-Storage
X-Real-IP
X-Akamai-Transformed
X-Mode
X-Cache-Remote
X-Region
X-Drupal-Cache-Contexts
X-Oracle-Dms-Rid
X-Oracle-Dms-Ecid
X-Source
X-Amz-Replication-Status
X-Distributor
X-Webkit-CSP
X-Kinja-Server-Push
HostName
X-Proxy
X-MP-GENERATED-AT
X-Rendered-As
X-Cache-Var-Map
Load-Balancing
X-Cache-Var
X-RN-RSRV
X-Path-Route
X-RemovedCookies
X-Detected-As
X-ProcessESI
X-Is-Bot
Meta-Geo
Machine
X-NCache
Fastly-SSL
X-Amzn-RequestId
ServerName
X-Amz-Apigw-Id
X-Viewer-Country
X-FC-Vary-Parameters
X-Upgrade-Enabled
X-Time-Microsecs
X-TWH-CORRELATION-ID
X-Grey
X-Akamai-Request-ID
X-PCL
GEO-INFO
X-Agile-Age
X-PERF
X-ApacheServer
X-Agile-Id
X-OCL
X-Agile
X-Webstats-RespID
X-BB-IP
Ohc-File-Size
X-Backend-Name
X-CDN-Cache
X-Web-Node
Cache-Key
X-Cache-Category-Id
Mn-Server-Ip
X-Daa-Tunnel
X-NodeID
L5d-Success-Class
X-BYPASS-REASON
X-Original-Request
X-Edge-Location
X-OVcl-Cache
X-OVcl
X-Instance-Name
Azure-InstanceId
X-Cluster-Node
X-Debug-Cache
X-EIG-Tracking-Id
X-Human
Azure-Version
Azure-RegionName
Azure-SiteName
Azure-SlotName
X-ProxyCache-Status
X-ProxyCache-Key
X-Pubstack
X-Proto
X-Via-Fastly
S-Rt
Backend
Now
X-Varnish-Cacheable
X-ServerID
X-Amz-Meta-Surrogate-Control
X-AWS-Id
TWC-Privacy
X-App-Name
TWC-Locale-Group
TWC-GeoIP-LatLong
User-Cache-Control
TWC-GeoIP-Country
Webcakes-App-Version
Webcakes-Region
X-Cache-HT
X-CCM
X-CCM-LastModified
X-Access
X-Birta-Cache-Post
Webcakes-App-Name
X-IP
X-Www-Served-By
X-VWS-Id
X-Timing-Wait
X-SplitTest
X-Xfnlog-Site
X-Zipkin-Id
X-Hosted-By
X-JoinUs
Healthy
Access-Control-Allow-Method
X-Site-Version
X-Section
X-Meta-Tbi-Cache-Vertical
X-LJ-Flow-ID
TWC-Device-Class
X-Generation-Time
X-Optimization
X-Origin-Hint
X-Routing-Service
X-Proxy-Build
X-Port
X-Format
X-Birta-Served
DB-Nickname
User-Agent
Countrycode
Cache-Name
TWC-Connection-Speed
X-Dc
LB
Property-Id
Selected-FE
Cache-Hits
X-TNCMS
Fastcgi-Useragent
Country
X-Loop
X-Labrador-Cache-Channel
X-Guploader-Uploadid
X-Tb
X-Generated
RATING
Payment
X-Request-Time
X-Tumblr-Pixel-3
Ec-Rule-Version
X-Surge-Debug
X-Ezoic-Cdn
X-Newrelic-Synthetics
X-Origin-CC
X-Time
X-TA-CDN-Provider
X-Hit
X-Unique-ID
X-Cache-Bucket
X-Nc
X-Oneagent-Js-Injection
WP-Super-Cache
X-DataStream-Cache-Status
X-Cache-Enabled
X-Feature
X-Render-Type
X-Real-Ip
X-B3-Spanid
Origin-Edge-Control
Origin-Cache-Control
X-Nginx-Cache
X-UA-Device-Type
X-Correlation-ID
RequestId
NODE
X-Varnish-Beresp-Grace
X-L-Path
X-Varnish-Beresp-Status
Xserver
X-Environment-Context
X-Esi
X-B3-TraceId
X-NU-AKA-ACS-Version
X-Skip-Cache
X-Content-Type
X-Be
X-NGENIX-Cache
X-WR-MODIFICATION
X-Servedby
X-Status
Apicache-Store
Apicache-Version
Access-Control-Request-Headers
Ws
X-ElasticPress-Search
X-HS-Hub-Id
X-EdgeConnect-Cache-Status
X-Cache-Backend
X-Vgn-Hpd-Reason
Warning
X-A
X-B-Cookie
Host-ID
X-ARC
Fastcgi-X-Cache-Version
X-GoCache-CacheStatus
GMS-Ver
IBM-Web2-Location
Fly-Request-Id
X-A-Dgt
X-A-Wwc
Fastly-Soc-X-Request-Id
X-A-Dcw
X-A-Dam
X-Application
Fastcgi-X-Cache
X-Accel-Expires-Debug
X-A-Ccd
X-BBXSRF
X-CF-Lambda-Version
Cache-Prefix
X-D
Apple-News-Services-Host
Apple-News-Services-Handled
T-Server
Apple-News-Services-Parsed-Url
Apple-News-Services-Request-Url
VivaBuild
Viewtype
BehaviorPad-Version
Sta2Tusw
Resin-Trace
X-Connection-Hash
X-BB-ID
MD5-Digest
Www
Memcached
Ajk
Meta-Geo-Continent
X-Date
X-CF-Lambda-Fn
AKAMAI
X-Destination
X-IN-SSL-APIGATEWAY
X-Server-By
X-S-Cookie
X-Server-Time
X-SRCache-Key
X-SVT-ORM-RULES
Time
X-Rojux
X-Planisys-CDN-TTL
X-Planisys-CDN-Rules
X-Public
X-Region-Sid
X-Developer
X-SVT-ORM-VERSION
X-Transaction
X-Via-Edge
X-Via-CDN
X-We-Are-Hiring
X-Wix-Route-ID
Xc-Version
X-VG-WebServer
X-User
X-Trv-Group
X-Twitter-Response-Tags
X-Upstream-CT
X-Upstream-HT
X-Planisys-CDN-Cache
X-Rewrite-Enabled
X-Haproxy-Ip
X-IN-APIGATEWAY
Fly-Cache
X-IN-WAF
X-Generated-In
X-G
X-Died
X-Fastly-Cache
X-From
X-Logtrace-Id
X-Haproxy-Hostname
X-ND-Cache
X-PAYTM-SRV-ID
X-No-Session
X-Cache-Ttl
Webserver
Release
Origin
Rendered-Blocks
Request-Time
X-Phone
X-Fstrz
X-Var-Ttl
NGX
X-Forwarded-Host
X-Wikidot-Backend
X-Wikidot-Static-Cache
X-DPWN-IS-SECURE
X-Cache-Id
X-F5-Cache
X-Via-NSCOPI
X-Debug-Log
X-Cache-Host
IsBot
X-Cache-Expires
X-Up
X-Rebelmouse-Cache-Control
X-ScT
X-CS
X-Rebelmouse-Surrogate-Control
X-Rocket-Nginx-Bypass
X-Request-URI
X-Core-Value
X-Amz-Meta-Cache-Control
X-SIPLIST1
X-Sn-Servicetimems
X-Auto-Login
V-Age
UCS
X-Debug-Cookies
X-Trace-Id
X-Hl-Ver
X-NX-Host
X-Cdn-Origin
Uber-Trace-Id
Server-Int
Fastly-SWR
X-CACHE-AGE
Fastly-SIE
X-C
X-Croise-Owner
X-UE-Client-Country
X-Eu-Site
X-Actual-URL
Who
X-Epic-Correlation-Id
X-Env
OT-Force-Account-Verify
X-Edge-IP
X-Server-IP
X-CGP
X-Server-Group
Cache-Cookie-Set-Lfrom
Thinkindot-CacheControl
X-FireWall-Port
X-Returned-From-PostProcessResponse
X-Clientip
Thinkindot-CacheControl-Type
Thinkindot-Control
Backend-Name
X-Served-From
Cache-Cookie-Set-From
Cache-Cookie-Set-Idcheck
Web-Mar-Node
X-Developers
X-Cache-Debug
X-Crawler
X-Cache-Control-Set-By
X-Cache-CFC
X-Bug-Bounty
X-WebServer
X-VServer
X-Varnish-HitMiss
X-V
X-Thanos
X-Cache-Time
X-Content-Age
X-Block-Status
X-Bip
X-ServiceProvider
X-TT-LOGID
X-Servername
X-Amz-Meta-S3cmd-Attrs
Server-Host
X-UnsetCookies
X-Backend-Host
X-Stale
X-Worker
X-Backend-Url
X-Backend-TTL
X-Backend-State
X-Device-Os
X-Frame-Option
HA-Servedtime
HA-Urlpath
HA-Ipaddr
HA-Host
Ha-Gx-Prefs
Heartbleed
Fastly-Backend-Name
X-Matched-Rule
X-Location
X-Passed-To-DLL
HTTPS
Httpd-Identifier
HA-Georegion
HA-Geolon
X-Ckpd-Fst-Backend
X-Thinkindot-L3
X-Passed-To-BeforeDispatch
X-Node-Id
X-Passed-To
X-MI-In-Market
GW-Server
HA-Geolat
HA-Geocountry
HA-Geocity
HA-Cloudapp
Esi-Enabled
X-Passed-To-PostProcessResponse
Powered-By
X-Returned-From
X-GeoIP-City
X-GeoIP-Country-Code
Decoy-Debug-Key
Pramga
X-Gen-Mode
X-Returned-From-DLL
X-Cdn-Srv
X-Returned-From-BeforeDispatch
Content-Disposition
Proxy-Connection
On-Server
Ohc-Response-Time
X-Info
Decoy-Debug-TTL
X-Reboot
X-RCS-CacheZone
X-Platform
X-Hnp-Log
MI-Cache
Odigeo-Trace-Id
X-HCF
Decoy-Debug-Status
MI-Cache-Age
CDCHOST
Cneonction
Mime-Version
X-MSEdge-Flight
X-MSEdge-Features
X-Dispatcher-Server
X-TIME
PFcat
X-Origin-Date
X-Varnish-Id
Pragrma
Platform
X-Alternate-Cache-Key
REQUESTUUID
Request-Country
Request-EU
X-Sorting-Hat-PodId
X-Origin-Expires
X-Sorting-Hat-Section
X-Sorting-Hat-FeatureSet
Is-Eu
Kp-EeAlive
X-Shopify-Stage
X-ShopId
X-Sorting-Hat-PrivacyLevel
X-Sorting-Hat-PodId-Cached
X-ShardId
X-Ver
Server-ID
X-Fetched-On
Adler-Geo
X-Core-Mission
X-Cache-Srv
X-Hash
X-Release
X-Response-By
Country-Code
X-Sorting-Hat-ShopId-Cached
X-Sorting-Hat-ShopId
NnCoection
X-Refresh
NtCoent-Length
Cache-Provider
X-Cache-URL
X-S-Maxage
X-Fastcgi-Cache
X-Svr
X-Varnish-Beresp-Ttl
Drupal-Pagecache-Memcache
X-Pjax-Url
X-P-T
X-Req
X-StackifyID
X-Secret
X-Gannett-Site-Version
MI-API
X-Page-Type
Dnion-Transfer-Encoding
X-Cache-ASPX
Processtime
X-Pf-Uncompressing
X-Amz-Meta-S3b-Last-Modified
X-Oss-Request-Id
X-Origin-TTL
X-Oss-Object-Type
X-Oss-Hash-Crc64ecma
X-Oss-Storage-Class
X-Oss-Server-Time
Version
X-Amz-Meta-Sha256
X-EC-Security-Audit
Ar-Sid
Accept-Ch
X-Varnish-Url
SN
X-App-Version
WebServer
Memory
Pagetype
X-Wix-Petri-Ex
X-Csrf-Token
Geoip-City
X-RateLimit-Limit-Second
Geoip-Latitude
X-RateLimit-Remaining-Second
X-CSRF-Token
GeoIp-Country-Code
X-Kong-Proxy-Latency
X-Kong-Upstream-Latency
X-LiteSpeed-Cache-Control
X-Ruxit-Js-Agent
X-Rule
Dont-Set-Cookie
FSS-Proxy
X-Yottaa-Sig
Arc-Country
X-From-Cache
FSS-Cache
Cteonnt-Length
X-Cache-Handler
PageType
X-Varnish-Beresp-TTL
X-NC
PICS-Label
Brightspot-Id
X-Ua
X-Irp-Debug
Cdn
X-Load-Cache
CF-IPCountry
X-Request-Start
X-LB-CacheStatus
X-LB-Node
X-Ratelimit-Remaining
Sid
X-Redis-Cache
Edgecast
X-ROOTCache
COMMERCE-SERVER-SOFTWARE
X-SERVER-NAME
X-COUNTRY
X-GRACE
X-Fastly-Backend-Reqs
X-Sf
PROCESSING-IP
X-Endurance-Cache-Level
MIME-Version
If-Modified-Since
BORDER-IP
X-Cdn-Forward
X-Request-UUID
X-DC
X-Tid
X-ServedByHost
RNT-Time
X-GDPR
RNT-Machine
X-Ratelimit-Limit
X-Requestid
X-Varnish-Action
X-RequestId
XServer
X-TId
X-Servedbyhost
X-Layer
X-Nananana
X-Rocket-Nginx-Serving-Static
Powered
X-B3-SpanId
X-Resolver-IP
PageSpeed
Cache-Tags
Frame-Options
X-BE
NodeID
X-Cache-TTL
Pics-Label
X-Fastly-Cache-Hits
Cf-Ipcountry
Amp-Access-Control-Allow-Source-Origin
X-DataStream-MidMile-RTT
X-DataStream-Origin-MEX-Latency
CACHE
X-Atg-Version
CDN
X-Tec-Api-Version
X-Tec-Api-Root
X-Tec-Api-Origin
Node
X-Owner
X-Gdpr
X-Key
We-Hiring
Mail-Subject
X-Dynatrace-Js-Agent
X-VG-WebCache
X-Varnish-Ttl
GeoIP-Country-Code
X-UPSTREAM-Address
GeoIP-City
X-Shard
X-Server-W
X-HTML-Minification-Powered-By
GeoIP-Latitude
X-Use-Magma
X-Dynatrace
Lfy
X-Sentry-ID
Hostname
X-Varnish-URL
Web-Mar-Region
ProcessTime
X-GZIP
X-Ms-Blob-Type
X-Ms-Request-Id
X-Ms-Version
X-Ms-Lease-Status
X-Aicache-OS
Accept-CH
X-ABtesting
X-Flog
X-Alicdn-Da-Ups-Status
WZWS-RAY
Dynatrace
True-Client-Country-4JS
X-GEO
FastCGI-Cache
URI
X-PF-Uncompressing
X-VG-TLSProxy
X-Powered-By-ANYU
DataCenter
X-Dw-Trace-Id
X-NGINX-Cache
Xet-Cookie
X-Policy
Is-Session-Tracking
X-Swa-Ws
Cdn-Host
X-PJAX-URL
X-NWS-UUID-VERIFY
X-Front
Max-Age
Get-Access-Time
X-Edge-Server
Cdn-Request-Time
X-Cookie
X-Oa-Upstreams
X-CDN-Pop
X-CDN-Pop-IP
X-PAGE-TYPE
X-Check-Cacheable
X-Unique-Id
X-Mem
RequestUuid
X-Ms-Lease-State
X-Varnish-ID
Requestid
X-Trv-Request-Id
Rt-Proxy-Cache
GEO-REGION-INFO
X-Org
V-Cache
Group
X-RSL
X-RPS
X-RPM
N-Cache
X-M-Reqid
X-Qnm-Cache
X-VID
X-Varnish-Info
X-M-Log
X-SB
X-VC
X-RAMCache
X-Hello
CF-Cached-On
X-Cache-FS-Status
X-Proxy-Server
X-Akamai-ERRuleID
X-Acquia-Application-UUID
X-Acquia-Application-Trace
X-Akamai-ERPolicy
X-Litespeed-Tag
SID
X-DB
X-DI
X-DSS
X-Litespeed-Cache-Control
X-Fe
X-Remote-IP
X-Powered-By-Defense
WS
X-DW