Technical Information
| HTTP Status Code | 200 |
| HTTP Version | HTTP/1.1 |
| HTTPS | ✔ Available |
| IP Address | 172.66.147.153 |
| Server Software | cloudflare |
| CDN | Cloudflare |
| Compression | gzip |
|
🔒 🟡 Mixed Content (1 HTTP resources) | The page is served over HTTPS but loads 1 resource(s) over HTTP. This may be blocked in modern browsers. |
|
ℹ 🔵 Missing X-Frame-Options | The site can be embedded in iframes by third parties (clickjacking risk). |
HTTP Status Code 200
HTTP Version HTTP/1.1
HTTPS ✔ Available
IP Address 172.66.147.153
Server Software cloudflare
CDN Cloudflare
Compression gzip
🔒 🟡 Mixed Content (1 HTTP resources) The page is served over HTTPS but loads 1 resource(s) over HTTP. This may be blocked in modern browsers.
ℹ 🔵 Missing X-Frame-Options The site can be embedded in iframes by third parties (clickjacking risk).
Performance
| DNS Lookup | 13.5 ms |
| TCP Connect | 15.2 ms |
| TLS Handshake | 9.2 ms |
| Time To First Byte (TTFB) | 582.2 ms |
| Content Download | 1.6 ms |
| Total Response Time | 583.8 ms |
DNS Lookup 13.5 ms
TCP Connect 15.2 ms
TLS Handshake 9.2 ms
Time To First Byte (TTFB) 582.2 ms
Content Download 1.6 ms
Total Response Time 583.8 ms
Security
| HTTPS | ✔ Enabled |
| HSTS | ✔ max-age=31536000 |
| CSP | ✔ Configured |
| X-Frame-Options | ⚠ Not configured |
| X-Content-Type-Options | ✔ nosniff |
| Referrer Policy | no-referrer-when-downgrade |
| HTTP/2 | ⚠ HTTP/1.1 |
HTTPS ✔ Enabled
HSTS ✔ max-age=31536000
CSP ✔ Configured
X-Frame-Options ⚠ Not configured
X-Content-Type-Options ✔ nosniff
Referrer Policy no-referrer-when-downgrade
HTTP/2 ⚠ HTTP/1.1
SEO Quick Check
| Title | Universidad Siglo 21 | Siglo 21 |
| Meta Description | La universidad privada más elegida del país. Inscripciones abiertas agosto 2026, descubrí nuestra oferta académica completa. |
| Canonical | https://21.edu.ar |
| Open Graph Title | Universidad Siglo 21 | Siglo 21 |
| Open Graph Description | La universidad privada más elegida del país. Inscripciones abiertas agosto 2026, descubrí nuestra oferta académica completa. |
| Twitter Card | summary |
| Twitter Title | Universidad Siglo 21 | Siglo 21 |
| Twitter Description | La universidad privada más elegida del país. Inscripciones abiertas agosto 2026, descubrí nuestra oferta académica completa. |
Title Universidad Siglo 21 | Siglo 21
Meta Description La universidad privada más elegida del país. Inscripciones abiertas agosto 2026, descubrí nuestra oferta académica completa.
Canonical https://21.edu.ar
Open Graph Title Universidad Siglo 21 | Siglo 21
Open Graph Description La universidad privada más elegida del país. Inscripciones abiertas agosto 2026, descubrí nuestra oferta académica completa.
Twitter Card summary
Twitter Title Universidad Siglo 21 | Siglo 21
Twitter Description La universidad privada más elegida del país. Inscripciones abiertas agosto 2026, descubrí nuestra oferta académica completa.
Detected Technologies
| Technology | jQuery Google Analytics Google Tag Manager Cloudflare HubSpot |
Technology jQuery Google Analytics Google Tag Manager Cloudflare HubSpot
HTTP Headers
| Date
| Wed, 19 Aug 2026 22:13:54 GMT |
| Content-type
| text/html;charset=utf-8 |
| Set-cookie
| _cfuvid=UC42fpKhoFKZeAoezIn4mpmAAuBvwzlanTGIU73459A-1787177634.2479036-1.0.1.1-6xhqHPxVusdcgJbS2TxFuqxTgL0it2qESfuNyTFk2L8; HttpOnly; SameSite=None; Secure; Path=/; Domain=21.edu.ar |
| Cf-ray
| a2dc821609359e67-CDG |
| Cf-cache-status
| BYPASS |
| Cache-control
| s-maxage=0,max-age=0 |
| Link
| ; rel=preload; as=script, ; rel=preload; as=style, ; rel=preload; as=style, ; rel=preload; as=style, ; rel=preload; as=style, ; rel=preload; as=style |
| Server
| cloudflare |
| X-hubspot-correlation-id
| 01a01c16-8a27-7127-8457-b5803a5ca1c5 |
| Strict-transport-security
| max-age=31536000 |
| Vary
| origin, accept-encoding |
| Access-control-allow-credentials
| false |
| Cache-tag
| CT-189725199780,CT-191141073777,P-44080364,W-184306006945,CW-184333897622,CW-184399191162,CW-185705492121,CW-189719901834,CW-189726865559,CW-189729076767,CW-189783956036,CW-189786901936,CW-189832657266,CW-189839436720,CW-215439055660,CW-217743895940,E-184027941905,E-184029772695,E-184029781328,E-185705492386,E-189667731872,E-189724523442,E-189724732534,MENU-184306006945,PGS-ALL,SW-1,GC-185707525817,GC-189723624592 |
| Content-security-policy
| upgrade-insecure-requests |
| Edge-cache-tag
| CT-189725199780,CT-191141073777,P-44080364,W-184306006945,CW-184333897622,CW-184399191162,CW-185705492121,CW-189719901834,CW-189726865559,CW-189729076767,CW-189783956036,CW-189786901936,CW-189832657266,CW-189839436720,CW-215439055660,CW-217743895940,E-184027941905,E-184029772695,E-184029781328,E-185705492386,E-189667731872,E-189724523442,E-189724732534,MENU-184306006945,PGS-ALL,SW-1,GC-185707525817,GC-189723624592 |
| Referrer-policy
| no-referrer-when-downgrade |
| Server-timing
| hcid;desc="01a01c16-8a27-7127-8457-b5803a5ca1c5", cfr;desc="a2dc82164fca9e67-IAD" |
| X-content-type-options
| nosniff |
| X-hs-cache-config
| BrowserCache-0s-EdgeCache-0s |
| X-hs-cfworker-meta
| {"contentType":"SITE_PAGE","resolver":"OriginResolver"} |
| X-hs-content-id
| 189725199780 |
| X-hs-hub-id
| 44080364 |
| X-hs-portal-id
| 44080364 |
| Report-to
| {"group":"cf-nel","max_age":604800,"endpoints":[{"url":"https://a.nel.cloudflare.com/report/v4?s=Oa6HYHw%2B%2FL9oiTRZoD7nelYcB%2B%2BGnXfOsdYZHZtDApKrzUtB4cvmBloRgHPQ6pcVWYynbVedBx1qsKJZtz%2Fn5Sd0lA1APPPNBbYZ1F1sRzG27amV1jDYeQEdmw%3D%3D"}]} |
| Nel
| {"report_to":"cf-nel","success_fraction":0.01,"max_age":604800} |
| Content-encoding
| gzip |
| Alt-svc
| h3=":443"; ma=86400 |
Meta Tags
| Description | La universidad privada más elegida del país. Inscripciones abiertas agosto 2026, descubrí nuestra oferta académica completa. |
| Viewport | width=device-width, initial-scale=1 |
| Google-site-verification | t1t86nkxs8XhtO7JYfEkgaQvzK1fhwPPN9dqERSVCXg |
| Content-language | es |
| Generator | HubSpot |
Date Wed, 19 Aug 2026 22:13:54 GMT
Content-type text/html;charset=utf-8
Set-cookie _cfuvid=UC42fpKhoFKZeAoezIn4mpmAAuBvwzlanTGIU73459A-1787177634.2479036-1.0.1.1-6xhqHPxVusdcgJbS2TxFuqxTgL0it2qESfuNyTFk2L8; HttpOnly; SameSite=None; Secure; Path=/; Domain=21.edu.ar
Cf-ray a2dc821609359e67-CDG
Cf-cache-status BYPASS
Cache-control s-maxage=0,max-age=0
Link ; rel=preload; as=script, ; rel=preload; as=style, ; rel=preload; as=style, ; rel=preload; as=style, ; rel=preload; as=style, ; rel=preload; as=style
Server cloudflare
X-hubspot-correlation-id 01a01c16-8a27-7127-8457-b5803a5ca1c5
Strict-transport-security max-age=31536000
Vary origin, accept-encoding
Access-control-allow-credentials false
Cache-tag CT-189725199780,CT-191141073777,P-44080364,W-184306006945,CW-184333897622,CW-184399191162,CW-185705492121,CW-189719901834,CW-189726865559,CW-189729076767,CW-189783956036,CW-189786901936,CW-189832657266,CW-189839436720,CW-215439055660,CW-217743895940,E-184027941905,E-184029772695,E-184029781328,E-185705492386,E-189667731872,E-189724523442,E-189724732534,MENU-184306006945,PGS-ALL,SW-1,GC-185707525817,GC-189723624592
Content-security-policy upgrade-insecure-requests
Edge-cache-tag CT-189725199780,CT-191141073777,P-44080364,W-184306006945,CW-184333897622,CW-184399191162,CW-185705492121,CW-189719901834,CW-189726865559,CW-189729076767,CW-189783956036,CW-189786901936,CW-189832657266,CW-189839436720,CW-215439055660,CW-217743895940,E-184027941905,E-184029772695,E-184029781328,E-185705492386,E-189667731872,E-189724523442,E-189724732534,MENU-184306006945,PGS-ALL,SW-1,GC-185707525817,GC-189723624592
Referrer-policy no-referrer-when-downgrade
Server-timing hcid;desc="01a01c16-8a27-7127-8457-b5803a5ca1c5", cfr;desc="a2dc82164fca9e67-IAD"
X-content-type-options nosniff
X-hs-cache-config BrowserCache-0s-EdgeCache-0s
X-hs-cfworker-meta {"contentType":"SITE_PAGE","resolver":"OriginResolver"}
X-hs-content-id 189725199780
X-hs-hub-id 44080364
X-hs-portal-id 44080364
Report-to {"group":"cf-nel","max_age":604800,"endpoints":[{"url":"https://a.nel.cloudflare.com/report/v4?s=Oa6HYHw%2B%2FL9oiTRZoD7nelYcB%2B%2BGnXfOsdYZHZtDApKrzUtB4cvmBloRgHPQ6pcVWYynbVedBx1qsKJZtz%2Fn5Sd0lA1APPPNBbYZ1F1sRzG27amV1jDYeQEdmw%3D%3D"}]}
Nel {"report_to":"cf-nel","success_fraction":0.01,"max_age":604800}
Content-encoding gzip
Alt-svc h3=":443"; ma=86400
