Technical Information
| HTTP Status Code | 200 |
| HTTP Version | HTTP/1.1 |
| HTTPS | ✔ Available |
| IP Address | 35.227.194.161 |
| Server Software | Google Frontend |
|
ℹ 🔵 Missing Content Security Policy | CSP is not configured. It helps prevent XSS attacks and content injection. |
|
ℹ 🔵 No Compression | The server does not use Gzip or Brotli. Enable compression to reduce bandwidth usage. |
HTTP Status Code 200
HTTP Version HTTP/1.1
HTTPS ✔ Available
IP Address 35.227.194.161
Server Software Google Frontend
ℹ 🔵 Missing Content Security Policy CSP is not configured. It helps prevent XSS attacks and content injection.
ℹ 🔵 No Compression The server does not use Gzip or Brotli. Enable compression to reduce bandwidth usage.
Redirect Chain
| # | URL | HTTP Status Code | Status |
| 1 | https://papercall.io:443 | 301 | HTTP/2 301 |
| 2 | https://www.papercall.io/ | 200 | HTTP/2 200 |
#1 URL https://papercall.io:443
HTTP Status Code 301
Status HTTP/2 301
#2 URL https://www.papercall.io/
HTTP Status Code 200
Status HTTP/2 200
Performance
| DNS Lookup | 21.8 ms |
| TCP Connect | 23.6 ms |
| TLS Handshake | 5.9 ms |
| Time To First Byte (TTFB) | 191.9 ms |
| Content Download | 0.6 ms |
| Total Response Time | 192.4 ms |
DNS Lookup 21.8 ms
TCP Connect 23.6 ms
TLS Handshake 5.9 ms
Time To First Byte (TTFB) 191.9 ms
Content Download 0.6 ms
Total Response Time 192.4 ms
Security
| HTTPS | ✔ Enabled |
| HSTS | ✔ max-age=15552000; includeSubDomains |
| CSP | ⚠ Not configured |
| X-Frame-Options | ✔ SAMEORIGIN |
| X-Content-Type-Options | ✔ nosniff |
| HTTP/2 | ⚠ HTTP/1.1 |
HTTPS ✔ Enabled
HSTS ✔ max-age=15552000; includeSubDomains
CSP ⚠ Not configured
X-Frame-Options ✔ SAMEORIGIN
X-Content-Type-Options ✔ nosniff
HTTP/2 ⚠ HTTP/1.1
SEO Quick Check
| Title | PaperCall.io |
| Twitter Card | summary |
| Twitter Title | PaperCall.io - The easy way to manage your call for papers |
| Twitter Description | PaperCall enables event organizers to easily manage their call for papers and talk submissions, without relying on tools such as Google Forms, WuFoo Forms, and other less than perfect systems. |
| Twitter Image | https://www.papercall.io/assets/just_papercall_logo-0f1c5... |
Title PaperCall.io Twitter Card summary Twitter Title PaperCall.io - The easy way to manage your call for papers Twitter Description PaperCall enables event organizers to easily manage their call for papers and talk submissions, without relying on tools such as Google Forms, WuFoo Forms, and other less than perfect systems. Twitter Image https://www.papercall.io/assets/just_papercall_logo-0f1c5... Detected Technologies
| Technology | Google Analytics Google Tag Manager Cloudflare Stripe |
Technology Google Analytics Google Tag Manager Cloudflare Stripe
HTTP Headers
| X-frame-options
| SAMEORIGIN |
| X-xss-protection
| 1; mode=block |
| X-content-type-options
| nosniff |
| Content-type
| text/html; charset=utf-8 |
| Etag
| W/"3e266daa992bb50fa90c5762a4e433f6" |
| Cache-control
| max-age=0, private, must-revalidate |
| Set-cookie
| _the_papercall_session=NklsUGpnMytQZlVKaUc3ako0L21PSUt6djNMTXBmZUc4Q1VWRTQ5VjVIOFhBbGJOb2RXWmVESDFRbTRINGxjRU9aOGVlSXpkcUM3TTdGNmcrMkIyODJBZ2hCQ3hiNTV6SEFwZGdLYjgwMmlTSmk5aVUxN2J2eGYzcU5tZ1E2aE9STnRJQ1JGd0dqcGs3cTJnUjFEU3J3PT0tLTkweHcvdGduZVM2OTAwUGhsNEphMEE9PQ%3D%3D--8ee366acd3a6839eccb960111b8f822d2d412a9f; domain=papercall.io; path=/; secure; HttpOnly |
| X-request-id
| dffd357a-184a-486c-9b05-782d4596806c |
| X-runtime
| 0.042280 |
| X-rack-cache
| miss |
| Strict-transport-security
| max-age=15552000; includeSubDomains |
| Date
| Tue, 28 Jul 2026 22:14:46 GMT |
| Server
| Google Frontend |
| Via
| 1.1 google |
| Alt-svc
| h3=":443"; ma=2592000 |
Meta Tags
| X-UA-Compatible | IE=Edge |
| Viewport | width=device-width, initial-scale=1.0, user-scalable=no |
| Csrf-param | authenticity_token |
| Csrf-token | Yi6upfkBQEBPefbsraXJhsjC/n23CFGt/8xtNezULQmLkOdgTUEde7D7hnnD54qtneLZbJEX+sIedzv1Z4ubTg== |
X-frame-options SAMEORIGIN
X-xss-protection 1; mode=block
X-content-type-options nosniff
Content-type text/html; charset=utf-8
Etag W/"3e266daa992bb50fa90c5762a4e433f6"
Cache-control max-age=0, private, must-revalidate
Set-cookie _the_papercall_session=NklsUGpnMytQZlVKaUc3ako0L21PSUt6djNMTXBmZUc4Q1VWRTQ5VjVIOFhBbGJOb2RXWmVESDFRbTRINGxjRU9aOGVlSXpkcUM3TTdGNmcrMkIyODJBZ2hCQ3hiNTV6SEFwZGdLYjgwMmlTSmk5aVUxN2J2eGYzcU5tZ1E2aE9STnRJQ1JGd0dqcGs3cTJnUjFEU3J3PT0tLTkweHcvdGduZVM2OTAwUGhsNEphMEE9PQ%3D%3D--8ee366acd3a6839eccb960111b8f822d2d412a9f; domain=papercall.io; path=/; secure; HttpOnly
X-request-id dffd357a-184a-486c-9b05-782d4596806c
X-runtime 0.042280
X-rack-cache miss
Strict-transport-security max-age=15552000; includeSubDomains
Date Tue, 28 Jul 2026 22:14:46 GMT
Server Google Frontend
Via 1.1 google
Alt-svc h3=":443"; ma=2592000
