Threat Level: green Handler on Duty: Daniel Wesemann

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
Link
Last-Modified
Cf-Request-Id
CF-Cache-Status
ETag
Accept-Ranges
Expect-CT
X-XSS-Protection
Pragma
X-Powered-By
CF-RAY
X-Cache
Via
Age
Content-Security-Policy
Report-To
NEL
Access-Control-Allow-Origin
Referrer-Policy
Content-Language
X-Amz-Cf-Pop
X-Amz-Cf-Id
X-Cache-Hits
P3P
X-UA-Compatible
X-Xss-Protection
X-Served-By
CF-Ray
X-Download-Options
X-Timer
Access-Control-Allow-Headers
Access-Control-Allow-Methods
X-Varnish
X-Request-Id
X-Adblock-Key
Access-Control-Allow-Credentials
X-FRAME-OPTIONS
X-Permitted-Cross-Domain-Policies
X-AspNet-Version
Alt-Svc
X-Request-ID
X-Runtime
Content-Security-Policy-Report-Only
X-Drupal-Cache
X-DNS-Prefetch-Control
X-Generator
X-Cache-Status
X-Check
X-Cacheable
Timing-Allow-Origin
X-Envoy-Upstream-Service-Time
X-Iinfo
X-Content-Security-Policy
X-Drupal-Dynamic-Cache
Feature-Policy
Content-Encoding
Access-Control-Expose-Headers
Status
Upgrade
X-AspNetMvc-Version
X-CDN
Access-Control-Max-Age
X-Via
Server-Timing
Request-Context
X-Dns-Prefetch-Control
X-Robots-Tag
X-Turbo-Charged-By
X-Amz-Request-Id
X-UA-Device
X-Cache-Group
X-Amz-Id-2
EagleId
P3p
X-Backend
X-AH-Environment
X-Proxy-Cache
Keep-Alive
X-Server
X-Ws-Request-Id
X-Age
Cf-Edge-Cache
Host-Header
X-Hacker
X-Vhost
X-Server-Powered-By
X-Rq
X-Varnish-Cache
X-Dispatcher
X-Amz-Version-Id
Grace
Allow
X-Swift-SaveTime
X-Swift-CacheTime
Ali-Swift-Global-Savetime
X-OneAgent-JS-Injection
X-Ua-Compatible
X-LiteSpeed-Cache
X-Page-Speed
X-Styx-Req-Id
X-Pantheon-Styx-Hostname
X-Device
Cf-Apo-Via
Cf-Railgun
X-WebKit-CSP
Accept-CH
X-Aws-Lambda-Call-Status
X-Node
X-Pingback
EagleEye-TraceId
X-Host
X-Ruxit-JS-Agent
X-Server-Id
Surrogate-Control
X-Nginx-Cache-Status
X-Akam-SW-Version
X-Readtime
Request-Id
X-Backend-Server
Accept-Ch-Lifetime
X-Content-Security-Policy-Report-Only
X-Cache-Lookup
X-HW
X-Litespeed-Cache
X-Cloud-Trace-Context
X-Cache-Spec
X-EdgeConnect-MidMile-RTT
X-EdgeConnect-Origin-MEX-Latency
X-Application-Context
X-Response-Time
X-Trace
Permissions-Policy
X-Nginx-Upstream-Cache-Status
Fastly-Restarts
X-Edge
X-Mod-Pagespeed
X-WebKit-CSP-Report-Only
X-Country
Content-Location
X-Mcache
X-MS-InvokeApp
X-Content-Type
X-Url
X-Clacks-Overhead
X-Midtier
X-TtlSet
X-Vname
X-PC
X-Amz-Server-Side-Encryption
X-CST
Accept-CH-Lifetime
Rating
RTSS
X-ECACHE
Cache-Tag
X-ESI
X-Vcap-Request-Id
X-D2id
X-Rack-Cache
X-Element-Page-Cache
Verso
X-GoogleNews-Bot
X-Exp-Variant
X-Cdn-Fetch
Origin-Trial
X-Exp-Id
X-Kinja
X-Kinja-Build
X-Kinja-Server
X-Use-Magma
X-Kinja-Revision
X-Server-Name
X-VARITI-CCR
Service-Worker-Allowed
X-Ac
X-Powered-By-Plesk
X-Amz-Rid
X-Cnection
X-Webkit-Csp
SPRequestGuid
X-SharePointHealthScore
X-GitHub-Request-Id
X-Navigation-Version
Xkey
X-Client-IP
Edge-Control
SPRequestDuration
SPIisLatency
X-Upstream
X-Abt-Application-Version
X-Cache-TTL
Arr-Disable-Session-Affinity
X-Ttl
X-B3-TraceId
X-Varnish-TTL
X-Cached
X-Dw-Request-Base-Id
X-Mg-S
X-Server-Lifecycle-Phase
X-Instrumentation
X-Browser-Type
X-Erf-Bev-Bev-Is-Generated
X-Kraken-Loop-Name
X-Erf-Bev-Bev
X-NWS-LOG-UUID
X-Px
Accept-Ch
Pagespeed
Display
X-Sol
X-Middleton-Display
X-Correlation-Id
X-NF-Request-ID
X-SRCache-Store-Status
X-SRCache-Fetch-Status
Access-Control-Request-Method
Edge-Cache-Tag
X-Forwarded-For
X-Cache-Key
X-Country-Code
X-Goog-Hash
X-Ser
X-Powered-CMS
X-FastCGI-Cache
AR-PoweredBy
AR-Request-ID
AR-CACHE
AR-ATIME
AR-SID
Content-MD5
TCN
Public-Key-Pins
Front-End-Https
X-Id
X-Version
X-Amzn-Trace-Id
X-HP-Trace-Id
X-HP-Webp
X-Jurisdiction
X-Content-Digest
X-MSEdge-Ref
X-Recruiting
Response
X-Middleton-Response
X-T
X-Ratelimit-Limit
X-Accel-Expires
X-Fastcgi-Cache
TP-L2-Cache
TP-Cache
X-RateLimit-Remaining
X-Shield-Request-Id
MicrosoftSharePointTeamServices
X-XRDS-Location
S
Cache-Status
Nginx-Cache
X-Fastly-Request-ID
X-HS-Hub-Id
X-HS-Content-Id
X-HS-Cache-Config
X-HS-Combine-CSS
Cross-Origin-Opener-Policy
Cache-Tags
X-Ratelimit-Remaining
Server-Node
Mrf-Cache-Status
MRF-Tech
X-B3-TraceId-Primal
X-Request-Processing-Time
X-Request-Received
X-Daa-Tunnel
X-Distributor
X-Hits
X-Kinsta-Cache
X-Edge-Location-Klb
X-LB-Cache
X-Origin-Server
X-Ua-Browser
X-PressLabs-Stats
X-Ezoic-Cdn
Fastcgi-Cache
X-TEC-API-ORIGIN
X-Ratelimit-Reset
X-TEC-API-ROOT
X-TEC-API-VERSION
Filterid
X-ORACLE-DMS-ECID
Alternate-Protocol
X-ORACLE-DMS-RID
X-Frontend
X-LLID
X-Hostname
X-Request-Handler-Origin-Region
X-Microsite
Realpath
X-Rid
Healthy
X-Grace
X-Logged-In
X-DIS-Request-ID
X-FB-Debug
Server-Name
X-TTL
X-Git-Hash
Cleartype
X-Geo-Country
X-Www-Served-By
X-NGENIX-Cache
X-Varnish-Backend
Payment
X-Cluster-Name
X-Page-Id
X-Debug-Info
X-Forwarded-Proto
MS-Author-Via
DC
X-Load-Cache
X-Protected-By
X-Origin-Cache
Access-Control-Allow-Method
Content-Disposition
X-B3-Sampled
X-Upgrade-Enabled
X-GUploader-UploadID
X-Goog-Metageneration
Charset
X-Kong-Proxy-Latency
X-Kong-Upstream-Latency
X-Proxy
X-Az
X-Activity-Id
X-AppVersion
X-Server-ID
X-Seen-By
X-DataDome
X-Times
Count-Hit
X-Amz-Meta-S3cmd-Attrs
X-Cache-Age
X-B3-Traceid
X-Amz-Replication-Status
X-B
X-Fb-Rlafr
X-Whom
X-Azure-Ref
Paypal-Debug-Id
X-F-Cache
X-Revision
Surrogate-Key
Accept-Charset
Cross-Origin-Resource-Policy
X-Akamai-Edgescape
X-Type
X-Varnish-Server
Viewport
X-Contextid
X-App-Environment
X-Providence-Cookie
X-Route-Name
X-Is-Crawler
X-Request-Guid
X-Flags
X-Aspnet-Duration-Ms
Retry-After
X-Wix-Request-Id
X-TT
X-Hosted-By
X-Language
X-Envoy-Decorator-Operation
X-Cache-Control
X-DynaTrace
X-ECache
X-Signature
X-B-Cache
X-Oracle-Dms-Ecid
X-Oracle-Dms-Rid
X-Magnolia-Registration
X-Varnish-Grace
X-App-Server
X-Source
X-Mobile
Amp-Access-Control-Allow-Source-Origin
X-Goog-Stored-Content-Encoding
X-Goog-Storage-Class
X-Goog-Stored-Content-Length
X-Goog-Generation
Version
WPO-Cache-Status
WPO-Cache-Message
Host
X-VCache
X-Amzn-RequestId
Refresh
X-Amz-Apigw-Id
X-N
X-HTML-Minification-Powered-By
X-Cache-Rule
X-Tumblr-Pixel-1
Access-Control-Request-Headers
Referer-Policy
X-Cache-Time
X-Tumblr-User
X-Tumblr-Pixel-0
X-Original-Request-Id
X-EdgeConnect-Cache-Status
X-Response-Served-From
X-Tumblr-Pixel
X-Varnish-Age
X-Rule
SD-X-WS
X-Region
X-RTag
Protected
X-Cacheable-TTL
Ms-Operation-Id
MS-CV
X-Framework
X-G
X-Jobs
X-User-Agent
X-UUID
X-Environment-Context
X-L-Path
X-Content-Powered-By
X-FW-Version
X-Tt-Trace-Host
X-Status
X-Tt-Trace-Tag
Akamai-GRN
GEO-INFO
X-RemovedCookies
X-ProcessESI
X-FW-Serve
X-FW-Hash
X-FW-Server
X-FW-Static
X-FW-Type
X-FW-Dynamic
X-Cache-Grace
X-Oneagent-Js-Injection
X-Akamai-Request-ID2
X-Backend-Name
X-Device-Type
VIX-Pulpo-Upstream-Status
VIX-Pulpo-Node
X-Is-Bot
NGB
From-Origin
X-Http-Reason
Section-Io-Cache
Front
X-Trace-Id
X-Rendered-As
X-Drupal-Cache-Tags
X-Page-View
X-Cache-Expired-At
X-Cache-Status-Check
X-RateLimit-Limit
X-Adobe-Content
CDN-RequestId
X-Instance
X-Drupal-Cache-Contexts
X-NYM-Debug-Backend
X-Adobe-Loc
X-Nginx-Cache
X-Unique-Id
X-XRDS-LOCATION
Pinterest-Generated-By
Pinterest-Version
X-Pinterest-Rid
Url
X-Servername
Liferay-Portal
X-Ruxit-Js-Agent
X-Varnish-Ttl
X-Time
X-Content-Options
Accept-Language
X-CDN-Forward
X-Template
SRV
X-Fastly-Request-Id
Fastly-SWR
Fastly-SIE
X-Air-Hostname
X-Newrelic-App-Data
X-Zen-Fury
X-Air-Source
X-Air-Trace-Id
X-Debug-IsConnected
Backend
X-Debug-IsPreview
X-Cache-Hit
X-DynaTrace-JS-Agent
X-Mode
X-Yottaa-Optimizations
X-Yottaa-Metrics
Country
X-Uri
X-App-Version
Content-Secure-Policy
X-Rocket-Nginx-Serving-Static
X-COUNTRY
X-Edge-Location
X-Cache-Operation
Node
X-Proxy-Cache-Info
X-Tumblr-Pixel-2
X-UPSTREAM-Address
S-Rt
X-Extlb
X-Tumblr-Pixel-3
X-ARC
X-Amzn-Remapped-Content-Length
Meta-Geo
X-Routing-Service
X-RN-RSRV
Webserver
X-Zipkin-Id
X-Rewrite-Enabled
X-Proxied
X-Cache-Server
Filters
X-Content-Age
Cache-Hits
X-Timing-Wait
Azure-InstanceId
X-Locale
X-Server-W
Azure-RegionName
Countrycode
Azure-SiteName
Selected-Fe
X-Generation-Time
Azure-SlotName
X-IPS-LoggedIn
X-PHP-Backend
X-Proxy-Build
Onion-Location
Uber-Trace-Id
Azure-Version
Webcakes-Region
X-Access
Mn-Server-Ip
TWC-GeoIP-LatLong
TWC-Locale-Group
TWC-GeoIP-Country
TWC-Device-Class
TWC-Connection-Speed
TWC-Privacy
Property-Id
Webcakes-App-Name
Cache-Name
CF-IPCountry
WP-Super-Cache
Webcakes-App-Version
X-Reqid
X-Section
X-LJ-Flow-ID
X-UA-Device-Type
X-Via-Fastly
X-Web-Node
X-AWS-Id
X-Ms-Request-Id
X-Soup
X-Sucuri-ID
X-Ms-Version
X-Tb
X-Skip-Cache
X-Site-Version
X-Cluster-Node
X-VWS-Id
X-Cms-Context
X-Cache-Action
X-BYPASS-REASON
X-Origin-Hint
X-Proxy-Cache-Status
X-Format
X-ProxyCache-Key
X-ProxyCache-Status
X-Sucuri-Cache
X-Origin-Date
X-Cluster
X-Cache-Host
Cache-Tv-Group
X-Proto
X-Say-TTL
X-Labrador-Cache-Channel
X-SayCDN-TTL
X-PHP-Host
X-Forwarded-Host
X-Say-Cacheable
Web-Mar-Node
X-Sql-Count
X-Sql-Duration-Ms
X-IPLB-Instance
X-Debug
X-Detected-As
X-No-Session
X-R9-Blue-Green-Version
X-SaId
X-Optimistic-Header
DB-Nickname
Cross-Origin-Window-Policy
X-Urbn-Context-Path
X-Urbn-Site-Id
X-IPLB-Request-ID
Apigw-Requestid
X-JoinUs
Locale
X-LAGOON
X-VC-Cache
X-Cache-TTL-Remaining
X-Xfnlog-Site
X-Handled-By
ServedBy
X-Ua
X-LSADC-Cache
X-Director
X-Varnish-Beresp-Grace
X-Adobe-Source
X-FB-TRIP-ID
X-Real-IP
X-Tec-Api-Root
Fastcgi-Useragent
X-Tec-Api-Origin
X-Tec-Api-Version
ServerID
X-WP-CF-Super-Cache-Cache-Control
X-Node-Name
X-WP-CF-Super-Cache
Frame-Options
X-GeoCode
X-GeoCountry
X-Tt-Logid
Upgrade-Insecure-Requests
X-Varnish-Hits
Fastly-Drupal-HTML
Mime-Version
Source
Load-Balancing
X-Api-Version
X-Aspnetmvc-Version
CDN-PullZone
X-Hl-Ver
CDN-RequestCountryCode
CDN-Cache
X-Generated-By
CDN-CachedAt
CDN-Uid
CDN-EdgeStorageId
X-GEO
X-Buckets
X-Varnish-Cache-Hits
X-Varnish-Hostname
Xet-Cookie
X-Request-Time
X-ServerID
X-Datadog-Sampling-Priority
X-Datadog-Sampled
X-Datadog-Trace-Id
X-Datadog-Parent-Id
X-Webkit-CSP-Report-Only
X-RM-Cache-TTL
X-URL
X-Origin-CC
X-FireWall-Port
X-Origin-TTL
X-Mg-Request-UUID
X-Redis-Cache
X-Akamai-Transformed
X-Cache-Debug
X-TIME
X-SRV
X-TA-CDN-Provider
CF-Cached-On
X-Served-From
Xserver
X-Storage
X-Loop
X-Provided-By
X-Sorting-Hat-ShopId
X-Storefront-Renderer-Rendered
X-Pubstack
X-Sorting-Hat-PodId
X-Shopify-Stage
X-ShardId
X-Tx-Id
X-ShopId
X-Alternate-Cache-Key
X-Endurance-Cache-Level
X-Pass-Why
X-Newrelic-Synthetics
X-Restarts
X-Request-Host
X-CSRF-Token
X-Location
X-Aed
X-B-Cookie
X-Bc-Bl
X-A-Wwc
X-Application
X-A-Dgt
X-A-Dam
X-Sigma-Backend
X-A-Dcw
X-BCube-Filmed-By
X-A-Ccd
X-Cache-Info
X-Core-Mission
X-Conf
X-CUA
X-Rojux
X-Destination
X-D
X-CMSURLCustom
X-S-Cookie
X-A
X-ScT
X-Cache-NE
X-Scale
X-S-Maxage
X-Bip
WWW-Authenticate
DCR-Decision-By
DCR-Processing-Time-Ms
NM-Fastcgi-Cache
Odigeo-Trace-Id
Redirect-Candidate
Origin
Ngx.Var.Host
Meta-Geo-Continent
Host-ID
Gannett-Cam-Experience-Id
Lang
MD5-Digest
Memcached
DSUID
Release
Rendered-Blocks
Thinkindot-CacheControl
TDXMobile
Thinkindot-CacheControl-Type
Thinkindot-Control
X-Fetched-On
A
T-Server
Surrogated-Key
Server-Host
Candidate-Md5Url
Sslversion
Cache-Host
BehaviorPad-Version
C-Via
X-SRCache-Key
X-S
X-Level-Front-Cache
X-Vdms-Path
X-SVT-ORM-VERSION
X-Epic-Correlation-Id
X-Sigma
X-Mid
X-Men
X-INCAP-ABP
X-Processor
X-Origin
X-Test
X-Developer
X-Generated-On
X-External-Request-Id
X-Hash
X-Ec-GeoHdr
Xc-Version
X-Ec-Fail
X-Thinkindot-L3
X-SVT-ORM-RULES
X-Rocket-Build-Number
X-Mobile-URL
X-Thanos
X-TIM-N
X-We-Are-Hiring
X-Vdms-Version
X-Service
HostName
Server-Info
X-Httpd
X-Varnish-Beresp-Ttl
X-Via-CDN
Locid
X-Varnishpool
X-Gzip
X-Geo-Header
X-Gdpr
Tube-Got-Eval
Tube-Get-Contents
X-Nginx-Cache-Key
X-Origin-Response-Time
X-Org
X-HS-Content-Campaign-Id
Origin-CC
Origin-EX
X-Mvc-Supplant-Cachable
On-Server
X-Loc
Tube-Got-Results
X-Instance-Name
X-Nyt-Route
Mail-Subject
Srvid
X-Human
Req-Svc-Chain
X-Var-Ttl
X-FL-EDGE
X-Cdn-Origin
X-Slack-Backend
X-Node-Id
X-CacheTTL
X-Req
X-Cache-Bucket
X-Cache-Date
X-Cache-Id
X-Slack-Shared-Secret-Outcome
X-Cdn-Srv
X-Developers
Magicmarker
X-Date
X-Sn-Servicetimems
X-Dispatcher-Number
X-Response-By
X-Ec-Custom-Error
X-Dispatcher-Server
X-Esi-Check
X-SD-PageType
X-Gamma-Serve
X-FL-QIT-DEBUG
X-Platform-Processor
X-Platform-Cluster
X-Platform
Tube-Return
We-Hiring
Fastly-GeoIP-CountryCode
X-Platform-Router
X-Fastly-Cache
X-Auto-Login
X-Region-Sid
X-BBC-Edge-Cache-Status
X-Server-IP
X-Akamai-Device-Characteristics
X-Fastly-Backend
X-Accel-Expires-Debug
X-Pool
X-Origin-Time
Fastly-Backend-Name
AKAMAI
CacheControlHeader
Cmsid
Edge-Cache
Cache-Key
Click-Count-Error
Cmstype
Country-Code
CloudFront-Viewer-Country
Click-Count-Action-Start
X-Via-Edge
X-Via-SSL
Edge-Copy-Time
Section-Io-Origin-Time-Seconds
X-WP-CF-Super-Cache-Active
Environment
Section-Origin-Responded
Section-Io-Id
Section-Io-Origin-Status
X-Azure-Ref-OriginShield
X-Block-Status
X-SB
X-Owner
Cache-Provider
X-Ad-Defer-Variation
X-VServer
Wxu-Next-Region
Wxu-Next-Hostname
Wxu-Next-Commit
X-Fmm-Version
X-JWT-State
X-Irp-Debug
X-Planisys-CDN-Cache
X-Is-Gdpr
X-Vmg-Version
X-Has-Esi
X-DefElseHash
X-DefHash
X-Core-Value
X-VC
X-Gen-Mode
X-Device-Os
X-Zone
X-Forwarded-Site
X-FC-Vary-Parameters
L
X-Frame-Option
X-Clara-WADP
X-Ckpd-Fst-Backend
Web-Mar-Region
X-Cache-FS-Status
X-NodeID
X-Planisys-CDN-Rules
X-Planisys-CDN-TTL
PFcat
X-GeoIP
X-GeoIP-City
X-GeoIP-Country-Code
X-GeoIP-Region-Code
X-Hnp-Log
X-Worker
Server-Hostname
Canary
Server-Ext
X-Varnish-CookieHashed-On
X-Variation
Sever-Int
X-Origin-Expires
Ssr
Is-Eu
Platform
Kp-EeAlive
Datacenter
X-Varnish-CookieINHashed-On
X-NCache
Machine
X-WADP-Cache
X-WA-Info
X-VarnishDD-TTL
X-Op-Id-All
Apple-News-Services-Request-Url
State
Gh-Request-Id
X-Mly-Id
Adler-Geo
X-Minions-Version
X-HN
Vix-Hermes-Req-Id
User-Cache-Control
X-Varnish-Remaining-TTL
Apple-News-Services-Handled
Expect-Staple
X-V-Cache
Apple-News-Services-Host
Apple-News-Services-Parsed-Url
X-TNCMS
L5d-Success-Class
Ha-Gx-Prefs
X-VG-TLSProxy
X-Ua-Device
HA-Ipaddr
CDCHOST
X-From
X-Old-Content-Length
X-Qloud-Router
X-DPWN-IS-SECURE
X-Release
X-CGP
Producers
X-Vcl-Version
X-Microcachable
X-Accel-Buffering
X-Aicache-OS
X-App
X-Cache-Remote
X-RCS-CacheZone
X-Eu-Site
NGX
X-Cache-Tags
X-Wix-Viewer-Type
X-Csrf-Jwt
X-CACHE-AGE
X-Air-Pt
X-Platform-Server
X-LB-NoCache
X-Debug-Cache-Store
X-Lambda-Id
X-Debug-Cache-Fetch
Fastly-SSL
X-Mvc-Supplant-OutputCached
X-Request-Start
X-Nananana
X-Cache-Enabled
X-Varnish-Beresp-Status
X-VCT
X-B3-SpanId
X-Parent-Response-Time
X-Client-Ip
Pics-Label
X-Up
X-DC
CPC-Age
CPC-Cache
VNS-Age
X-Upstream-Ht
X-Tb-Optimization-Total-Bytes-Saved
X-Generated-In
X-Presslabs-Stats
X-AIR-PT
X-Upstream-Ct
X-Via-Poph
X-Via-Popv
X-Vtex-Remote-Cache
VNS-Cache
X-Via-Popn
X-Render-Time
X-B3-Spanid
X-Trace-ID
X-Cs
X-Dc
X-Refresh
Env
GeoIP-Latitude
X-HA-Backend
X-Cached-By
X-Cache-Backend
AMP-Access-Control-Allow-Source-Origin
X-Cache-Type
SID
Decoy-Debug-Key
X-TH-Server
Cluster
Time
Decoy-Debug-Status
Memory
X-Hcs-Proxy-Type
X-ND-Cache
Decoy-Debug-TTL
X-CCDN-CacheTTL
Cache
Sid
X-CCDN-Origin-Time
NtCoent-Length
X-Webkit-CSP
X-Servedbyhost
X-LB-ID
X-Correlation-ID
X-ATG-Version
X-Tid
X-Srv
X-Edge-Pop
X-Esi
Server-ID
X-DataCenter
X-Wa
X-HS-Status
X-Nc
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