Tools & Wizards About Us
carlosslim.com screenshot

Report Summary

  • 46

    Performance

    Renders faster than
    65% of other websites

  • 54

    Accessibility

    Visual factors better than
    that of 23% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    20% of websites

  • 58

    SEO

    Google-friendlier than
    21% of websites

carlosslim.com

Carlos Slim Helú

Page Load Speed

9.5 sec in total

First Response

227 ms

Resources Loaded

9.1 sec

Page Rendered

92 ms

carlosslim.com screenshot

About Website

Visit carlosslim.com now to see the best up-to-date Carlos Slim content for Mexico and also check out these interesting facts you probably never knew about carlosslim.com

Sitio oficial de Carlos Slim Helú. Biografía, semblanza, actividad empresarial, actividad social, preguntas y respuestas.

Visit carlosslim.com

Key Findings

We analyzed Carlosslim.com page load time and found that the first response time was 227 ms and then it took 9.2 sec to load all DOM resources and completely render a web page. This is a poor result, as 85% of websites can load faster.

Performance Metrics

carlosslim.com performance score

46

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.6 s

32/100

10%

LCP (Largest Contentful Paint)

Value7.6 s

4/100

25%

SI (Speed Index)

Value3.9 s

83/100

10%

TBT (Total Blocking Time)

Value600 ms

49/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value9.0 s

33/100

10%

Network Requests Diagram

carlosslim.com

227 ms

carlosslim.com

522 ms

noticias21.css

188 ms

jquery1.2.6.min.js

310 ms

jquery.slideshow.js

188 ms

Our browser made a total of 206 requests to load all elements on the main page. We found that 98% of them (202 requests) were addressed to the original Carlosslim.com, 1% (2 requests) were made to Googletagmanager.com and 1% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (2.4 sec) belongs to the original domain Carlosslim.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 287.9 kB (10%)

Content Size

2.8 MB

After Optimization

2.5 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Carlosslim.com main page is 2.8 MB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 70% of websites need less resources to load. Images take 2.5 MB which makes up the majority of the site volume.

HTML Optimization

-82%

Potential reduce by 154.5 kB

  • Original 189.4 kB
  • After minification 158.1 kB
  • After compression 34.9 kB

HTML content can be minified and compressed by a website’s server. The most efficient way is to compress content using GZIP which reduces data amount travelling through the network between server and browser. This page needs HTML code to be minified as it can gain 31.2 kB, which is 16% of the original size. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 154.5 kB or 82% of the original size.

Image Optimization

-2%

Potential reduce by 57.4 kB

  • Original 2.5 MB
  • After minification 2.4 MB

Image size optimization can help to speed up a website loading time. The chart above shows the difference between the size before and after optimization. Carlos Slim images are well optimized though.

JavaScript Optimization

-66%

Potential reduce by 71.9 kB

  • Original 109.8 kB
  • After minification 109.2 kB
  • After compression 37.9 kB

It’s better to minify JavaScript in order to improve website performance. The diagram shows the current total size of all JavaScript files against the prospective JavaScript size after its minification and compression. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 71.9 kB or 66% of the original size.

CSS Optimization

-78%

Potential reduce by 4.1 kB

  • Original 5.2 kB
  • After minification 4.1 kB
  • After compression 1.1 kB

CSS files minification is very important to reduce a web page rendering time. The faster CSS files can load, the earlier a page can be rendered. Carlosslim.com needs all CSS files to be minified and compressed as it can save up to 4.1 kB or 78% of the original size.

Requests Breakdown

Number of requests can be reduced by 4 (2%)

Requests Now

204

After Optimization

200

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 204 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Carlos Slim. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 5 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

carlosslim.com

carlosslim.com

227 ms

carlosslim.com

carlosslim.com

522 ms

noticias21.css

noticias21.css

188 ms

jquery1.2.6.min.js

jquery1.2.6.min.js

310 ms

jquery.slideshow.js

jquery.slideshow.js

188 ms

cover09.jpg

cover09.jpg

348 ms

titulo_home_csh.png

titulo_home_csh.png

189 ms

frase08.png

frase08.png

191 ms

frase01.png

frase01.png

191 ms

frase02.png

frase02.png

287 ms

frase03.png

frase03.png

349 ms

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frase04.png

475 ms

frase05.png

frase05.png

414 ms

frase06.png

frase06.png

413 ms

frase07.png

frase07.png

474 ms

banner-slim-c1-v1.jpg

banner-slim-c1-v1.jpg

599 ms

banner-slim-a1.png

banner-slim-a1.png

657 ms

banner-slim-b1.png

banner-slim-b1.png

726 ms

index_199.gif

index_199.gif

599 ms

index_199_ing.gif

index_199_ing.gif

660 ms

240219-conf-cslim.jpg

240219-conf-cslim.jpg

722 ms

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844 ms

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848 ms

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905 ms

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909 ms

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971 ms

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974 ms

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1092 ms

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1099 ms

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1091 ms

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1095 ms

211005-fcs-cdmx-unam.jpg

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1218 ms

210611-fcs-cdmx-covid19.jpg

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1221 ms

210104-fcs-cdmx-covid19-amplia-capacidad.jpg

210104-fcs-cdmx-covid19-amplia-capacidad.jpg

1338 ms

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1341 ms

200812-aztrazeneca-acuerdo-vacuna-covid19.jpg

200812-aztrazeneca-acuerdo-vacuna-covid19.jpg

1341 ms

not_slim_mesoamerica.jpg

not_slim_mesoamerica.jpg

1285 ms

200423-int-unidad-temporal.jpg

200423-int-unidad-temporal.jpg

1470 ms

30CongresoIngenieriaCivil.jpg

30CongresoIngenieriaCivil.jpg

1469 ms

premio_nacional_ing_2018.jpg

premio_nacional_ing_2018.jpg

1534 ms

gtm.js

gtm.js

77 ms

reconocimiento_medallahonorcarlosiii.jpg

reconocimiento_medallahonorcarlosiii.jpg

1552 ms

analytics.js

analytics.js

16 ms

collect

collect

13 ms

js

js

43 ms

ico_pdf_ext.png

ico_pdf_ext.png

1340 ms

conferencia_prensa_reconstruccion_fundacion_sismos_mexico.jpg

conferencia_prensa_reconstruccion_fundacion_sismos_mexico.jpg

1401 ms

conferencia_prensa_presidente_mexico.jpg

conferencia_prensa_presidente_mexico.jpg

1467 ms

VII_simposium_centros_historicos.png

VII_simposium_centros_historicos.png

1432 ms

circulo_montevideo_tecnologia.png

circulo_montevideo_tecnologia.png

1429 ms

conferenciaCumbreNegocios2018.jpg

conferenciaCumbreNegocios2018.jpg

1375 ms

reunionCirculoMontevideo2018.jpg

reunionCirculoMontevideo2018.jpg

1361 ms

slim_InvestorDay.jpg

slim_InvestorDay.jpg

1423 ms

In_bandaAnchaNacionesUnidas.jpg

In_bandaAnchaNacionesUnidas.jpg

1370 ms

slim_premios_espana.jpg

slim_premios_espana.jpg

1435 ms

slim_cumbre_negocios_2017.jpg

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1424 ms

slim_donacion_sismos2017.jpg

slim_donacion_sismos2017.jpg

1363 ms

slim_entrevista_sismos_2017.jpg

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1367 ms

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1367 ms

slim_conferencia_2017.jpg

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1368 ms

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1420 ms

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1423 ms

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1358 ms

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1305 ms

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1368 ms

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1358 ms

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1417 ms

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1306 ms

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1361 ms

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1367 ms

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1477 ms

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1358 ms

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1361 ms

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1359 ms

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1310 ms

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1421 ms

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1420 ms

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1300 ms

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1360 ms

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1309 ms

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1366 ms

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1360 ms

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1361 ms

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1299 ms

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1359 ms

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1299 ms

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1316 ms

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1361 ms

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1297 ms

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1301 ms

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1303 ms

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1365 ms

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1252 ms

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1298 ms

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1294 ms

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1238 ms

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1252 ms

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1251 ms

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1293 ms

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1299 ms

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1229 ms

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1185 ms

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1190 ms

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1247 ms

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1236 ms

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1229 ms

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1125 ms

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1172 ms

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1181 ms

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1181 ms

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1224 ms

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1118 ms

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1124 ms

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1168 ms

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1118 ms

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1180 ms

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1159 ms

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1115 ms

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1124 ms

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1169 ms

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1115 ms

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1125 ms

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1160 ms

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1120 ms

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1184 ms

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1166 ms

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1170 ms

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1174 ms

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1116 ms

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1110 ms

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1173 ms

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1173 ms

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1169 ms

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1160 ms

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1112 ms

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1295 ms

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1288 ms

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1423 ms

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1407 ms

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1592 ms

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1792 ms

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1963 ms

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1967 ms

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1963 ms

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1951 ms

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1954 ms

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1969 ms

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2038 ms

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2014 ms

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1968 ms

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2078 ms

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2013 ms

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2027 ms

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2026 ms

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2028 ms

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2310 ms

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2297 ms

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2293 ms

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2249 ms

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2253 ms

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2309 ms

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2300 ms

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2301 ms

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2252 ms

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2253 ms

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2362 ms

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2310 ms

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2366 ms

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2305 ms

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2259 ms

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2375 ms

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2194 ms

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2311 ms

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2069 ms

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2070 ms

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1945 ms

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1699 ms

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1588 ms

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1580 ms

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1589 ms

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1589 ms

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1530 ms

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1583 ms

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1637 ms

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1585 ms

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1587 ms

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1531 ms

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1591 ms

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1637 ms

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1369 ms

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1370 ms

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1309 ms

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1365 ms

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1419 ms

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1370 ms

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1368 ms

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1308 ms

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1368 ms

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1423 ms

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1429 ms

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1365 ms

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1308 ms

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1357 ms

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1361 ms

Accessibility Review

carlosslim.com accessibility score

54

Accessibility Issues

Contrast

These are opportunities to improve the legibility of your content.

Impact

Issue

High

Background and foreground colors do not have a sufficient contrast ratio.

Internationalization and localization

These are opportunities to improve the interpretation of your content by users in different locales.

Impact

Issue

High

<html> element does not have a [lang] attribute

Names and labels

These are opportunities to improve the semantics of the controls in your application. This may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Best Practices

carlosslim.com best practices score

58

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

carlosslim.com SEO score

58

Search Engine Optimization Advices

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

Links are not crawlable

Content Best Practices

Format your HTML in a way that enables crawlers to better understand your app’s content.

Impact

Issue

High

Image elements do not have [alt] attributes

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Carlosslim.com can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Carlosslim.com main page’s claimed encoding is utf-8. Use of this encoding format is the best practice as the main page visitors from all over the world won’t have any issues with symbol transcription.

Social Sharing Optimization

carlosslim.com

Open Graph description is not detected on the main page of Carlos Slim. Lack of Open Graph description can be counter-productive for their social media presence, as such a description allows converting a website homepage (or other pages) into good-looking, rich and well-structured posts, when it is being shared on Facebook and other social media. For example, adding the following code snippet into HTML <head> tag will help to represent this web page correctly in social networks: