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