Sigmaelectronica.net - SEO Checker

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Overview of the SEO Check
Meta information
80% 
Page quality
69% 
Page structure
27% 
Link structure
72% 
Server
58% 
External factors
42% 
SEO Score
Response time
0.77 s
File size
865.40 kB
Words
828
Media files
58
Number of links
110 internal / 9 external

Task list of SEO Improvements

Meta specifications

Title
(Critically important)
Inicio - Sigma Electrónica
The length of the page title is perfect. (227 pixels out of 580 max pixel length)
There are no duplicate words in the title
Meta description
(Critically important)
The meta description is missing.
Crawlability
(Critically important)
There are no problems in accessing the website.
Canonical URL
(Important)
https://www.sigmaelectronica.net/
There is a valid canonical link specified.
Language
(Somewhat important)
Language detected in text: es
Language defined in HTML: es
Server location: United States of America
The following language is defined by HTML: es
Alternate/Hreflang Links
(Somewhat important)
There are no alternate links specified on this page.
Other meta tags
(Somewhat important)
There is no rel next meta tag on this page.
There is no rel prev meta tag on this page.
Domain
(Somewhat important)
The domain is no subdomain.
The domain length is good.
The domain does not contain non-latin characters.
Page URL
(Somewhat important)
No parameters were found in the URL.
No session ID was found in the URL.
The URL does not have too many subdirectories.
Charset encoding
(Somewhat important)
The charset encoding (UTF-8) is set correctly.
Doctype
(Nice to have)
The doctype HTML 5 is set correctly.
The doctype is placed at first in the HTML code.
Favicon
(Nice to have)
The favicon is linked correctly.

Meta tags

NameValue
robotsfollow, index, max-snippet:-1, max-video-preview:-1, max-image-preview:large
theme-color#1d44b2
viewportwidth=device-width, initial-scale=1, maximum-scale=1
msapplication-TileImagehttps://www.sigmaelectronica.net/wp-content/uploads/2016/12/cropped-favicon-1-270x270.png
article:published_time2015-08-24T14:19:22-05:00
article:modified_time2025-12-05T17:43:57-05:00
langes
twitter:widgets:cspon
twitter:cardsummary_large_image
twitter:titleInicio - Sigma Electrónica
twitter:label1Escrito por
twitter:data1Sigma Electrónica
twitter:label2Tiempo de lectura
twitter:data2Menos de un minuto
og:localees_ES
og:typewebsite
og:titleInicio - Sigma Electrónica
og:urlhttps://www.sigmaelectronica.net/
og:site_nameSigma Electrónica
og:updated_time2025-12-05T17:43:57-05:00
charsetUTF-8

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Page quality

Content
(Critically important)
These Typos were found:
  • imagenes => imágenes
The average number of words per sentence of 26.46 words is high.
This page contains 828 words. That's ok.
20.9% of the text are stop words.
Keywords used in the page title are also used in the page content. That's good!
The page contains a listing, which indicates a good text layout.
7 paragraphs were found on this page.
The text content is perfect.
No placeholders texts or images were found.
There are no duplicates on the site.
Frames
(Critically important)
This page does not use a frameset.
Mobile optimization
(Somewhat important)
The file size of the HTML document is very large (865.4 kB).
A viewport "width=device-width, initial-scale=1, maximum-scale=1" is provided.
At least one Apple touch icon is specified.
Bold and strong tags
(Somewhat important)
The usage of strong and bold tags is perfect. We recommend the use of up to 17 tags for this page.
Image SEO
(Somewhat important)
26 images have no alt attribute. The content of alt attributes is used by search engines.
Social Networks
(Nice to have)
There are only a few social sharing widgets on the page. Make your website popular in social networks with social sharing widgets.
Additional markup
(Nice to have)
No additional page markup was found.
HTTPS
(Somewhat important)
This website uses HTTPS to protect privacy and integrity of the exchanged data.
All included files are also transferred via HTTPS.

Media list

URLAlt attributeTitle
...nt/uploads/2017/05/logo-sigma-blanco.pngSigma ElectrónicaComponentes Electrónicos
.../uploads/2017/05/logo-sigma-alto80px.pngSigma Electrónica
...ontent/uploads/2017/05/whatsapp-icon.pngNo alt attribute provided
...ontent/uploads/2025/12/Navidad2025-2.jpgNo alt attribute providedNavidad2025
.../2022/02/Raspberry-Pi-vitrinas-small.gifNo alt attribute providedRaspberry Pi vitrinas small
...ntent/uploads/2022/03/Quectel-mall-1.gifNo alt attribute providedQuectel mall (1)
...loads/2022/02/Arduino-video-banner-3.gifNo alt attribute providedArduino video banner (3)
...tent/uploads/2022/11/Teltonika-Small.gifNo alt attribute providedTeltonika-Small
/wp-content/uploads/2025/12/2-7.jpgNo alt attribute provided
/wp-content/uploads/2025/12/2.jpgNo alt attribute provided
/wp-content/uploads/2025/12/3-2.jpgNo alt attribute provided
/wp-content/uploads/2025/12/6.jpgNo alt attribute provided
/wp-content/uploads/2025/12/4-2.jpgNo alt attribute provided
/wp-content/uploads/2025/12/4-1.jpgNo alt attribute provided
...otor-driver-module-detail-1200x1200w.jpgNo alt attribute provided
/wp-content/uploads/2025/12/2-1.jpgNo alt attribute provided
/wp-content/uploads/2025/12/3-3.jpgNo alt attribute provided
/wp-content/uploads/2025/11/2-3.jpgNo alt attribute provided
/wp-content/uploads/2025/11/2-4.jpgNo alt attribute provided
...ntent/uploads/2019/01/l80r_1-300x300.jpgNo alt attribute provided
...nt/uploads/2021/11/ESP32-WROOM-32D_2.jpgNo alt attribute provided
/wp-content/uploads/2015/01/1.pngHC-5 PROTO
...ontent/uploads/2015/06/L86_3-300x300.jpgNo alt attribute provided
...ntent/uploads/2023/03/ec200a_image-2.pngNo alt attribute provided
...oads/2018/08/rpi-y-rs232-1-370x200_c.jpgNo alt attribute providedrpi y rs232 (1)
...8/03/RPI-modb3_metal-plate-370x200_c.jpgNo alt attribute providedRPI modb3+_metal plate
/wp-content/uploads/2016/10/foro.pngNo alt attribute providedforo
...PROVED-RESELLER-LOGO_COLOUR-300x70-1.pngNo alt attribute providedDIGITAL-APPROVED-RESELLER-LOGO_COLOUR-300x70
...content/uploads/2016/10/1sheeld-logo.png1sheeld1sheeld
/wp-content/uploads/2016/10/atmel-logo.pngATMELATMEL
...content/uploads/2016/10/arduino-logo.pngArduinoArduino
...tent/uploads/2016/10/cubieboard-logo.pngCubieboardCubieboard
...ontent/uploads/2016/10/adafruit-logo.pngNo alt attribute providedAdafruit
...content/uploads/2016/10/dfrobot-logo.pngDF RobotDF Robot
...content/uploads/2016/10/intel-logo-x.pngintelintel
...ontent/uploads/2016/10/diligent-logo.pngDiligentDiligent
/wp-content/uploads/2016/10/pololu-logo.pngpololupololu
.../uploads/2017/05/logo-sigma-alto30px.pngSigma Electrónica

Page structure

H1 heading
(Critically important)
Sigma Electrónica
Too many H1 headings
The H1 heading is too short (17 characters). It should be at least 20 Characters long.
Headings
(Important)
The structure of headings is missing one or more levels. Do not skip heading levels.
There are 38 headings on the page. The amount of headings should be in a more proper relation to the amount of text.
Some headings do not have any content.

Heading structure

Heading levelContent
H1 Sigma Electrónica
H1 LO MÁS RECIENTE EN NUESTRO BLOG
H3 SIGN IN YOUR ACCOUNT TO HAVE ACCESS TO DIFFERENT FEATURES
H3 FORGOT YOUR DETAILS?
H3 CREATE ACCOUNT
H3 PRODUCTOS NUEVOS DE ESTE MES
H3 WVS-28154
H3 COND 15UF35V
H3 GX16-10P
H3 B18650 3.7V 3.5A
H3 USB C TESTER
H3 KWS-V30
H3 TARJ MCP4725
H3 DRI0041
H3 PS-5V-1W
H3 BATLI 3.7V 3A
H3 PIC16F917-I/P
H3 KIT-29326
H3 ESP-32 USB C
H3 GX16-2P
H3 GX16-3P
H3 BEST SELLING PRODUCTS
H3 L80-R
H3 ESP32-WROOM-32D
H3 HC-5 PROTO
H3 L86
H3 EC200A-AU
H3 Empty heading
H3 Raspberry Pi 5 vs. 4 B: ¡El Salto de Generación!
H3 Comunicacion Serial Raspberry Pi
H3 Raspberry Pi 3 Model B+ Ahora disponible
H3 Nuestro Foro
H3 DISTRIBUIDOR OFICIAL
H3 Información
H3 Atención al Cliente
H3 Horario de Atención
H4 SE EL PRIMERO EN ENTERARTE DE OFERTAS ESPECIALES Y DE NUEVOS PRODUCTOS EN NUESTRA TIENDA.
H4 Artículos de interés
H5 Además de poder recibir los artículos de nuestro blog antes que el resto del mundo.
Some internal link anchor texts are too long.
Some internal links have dynamic parameters. All internal URLs, which are not marked as nofollow, should not contain dynamic parameters.
Some anchor texts are used more than once.
1 links don't have an anchor text.
The number of internal links is ok.
There are 9 external links on this page.

Found links on this page

LinkAttributesAnchor text
https://www.sigmaelectronica.net/Anchor CREATE AN ACCOUNT
https://www.sigmaelectronica.net/Anchor FORGOT YOUR PASSWORD?
https://www.sigmaelectronica.net/Anchor AAH, WAIT, I REMEMBER NOW!
https://www.sigmaelectronica.net/Anchor ALREADY HAVE AN ACCOUNT?
https://www.sigmaelectronica.net/IMG-ALT Sigma Electrónica
https://goo.gl/maps/TigvD85MQSrNew window External Open in Google Maps
https://api.whatsapp.com/send?...External Subdomain 315 329 1044
https://www.facebook.com/sigma...New window External Subdomain A-TITLE Facebook
https://twitter.com/@Sigma_ElectrNew window External A-TITLE Twitter
/mi-cuentaLOGIN
/mi-cuentaSIGN UP
https://www.sigmaelectronica.net/Inicio
/catalogo/Catálogo Completo
/nuevos-productos/Nuevos Productos
/productos-en-oferta/Ofertas
/nuevos-productos/Novedades
/blog/Blog
/como-comprar/Cómo comprar
/envios-y-devoluciones/Envíos y Devoluciones
/contacto/Contacto
/terminos-y-condiciones/Términos y Condiciones
/mi-cuenta/Mi Cuenta
/carrito/MY CART
A-TITLE View your shopping cart
/como-comprar/CÓMOCOMPRAR
/categoria-producto/raspberry/...Más información
A-TITLE Más información
/categoria-producto/arduino/Más Información
A-TITLE Más Información
/mi-cuenta/QUIERO SUSCRIBIRME
A-TITLE s
/producto/wvs-28154/NEW! WVS-28154 Módulo LCD con Microcontrolador ESP32 Integrado $214,200
/?add-to-cart=2112907Nofollow No Text
/producto/wvs-28154/A-TITLE MORE INFO
/producto/cond-15uf35v/NEW! COND 15UF35V Condensador Electrolítico 15µF 35V $595
/?add-to-cart=2112794Nofollow No Text
/producto/cond-15uf35v/Text duplicate A-TITLE MORE INFO
/producto/gx16-10p/NEW! GX16-10P Conector de Aviación GX16-10P – 10 Pines $10,948
/?add-to-cart=2112799Nofollow No Text
/producto/gx16-10p/Text duplicate A-TITLE MORE INFO
/producto/b18650-3-7v-3-5a/NEW! B18650 3.7V 3.5A Batería Recargable 18650 – 3.7V 3.5Ah $17,969
/?add-to-cart=2112805Nofollow No Text
/producto/b18650-3-7v-3-5a/Text duplicate A-TITLE MORE INFO
/producto/usb-c-tester/NEW! USB C TESTER USB-C Tester – Medidor de Voltaje, Corriente y Potencia $39,984
/?add-to-cart=2112814Nofollow No Text
/producto/usb-c-tester/Text duplicate A-TITLE MORE INFO
/producto/kws-v30/NEW! KWS-V30 USB Tester Tipo A – Medidor de Voltaje, Corriente y Potencia $22,015
/?add-to-cart=2112820Nofollow No Text
/producto/kws-v30/Text duplicate A-TITLE MORE INFO
/producto/tarj-mcp4725/NEW! TARJ MCP4725 Módulo DAC MCP4725 – Convertidor Digital a Analógico 12 Bits (I²C) $6,307
/?add-to-cart=2112824Nofollow No Text
/producto/tarj-mcp4725/Text duplicate A-TITLE MORE INFO
/producto/dri0041/NEW! DRI0041 Controlador de Motor DC $123,165
/?add-to-cart=2112829Nofollow No Text
/producto/dri0041/Text duplicate A-TITLE MORE INFO
/producto/ps-5v-1w/NEW! PS-5V-1W Panel Solar PS-5V-1W – 5V 1W $11,900
/?add-to-cart=2112801Nofollow No Text
/producto/ps-5v-1w/Text duplicate A-TITLE MORE INFO
/producto/batli-3-7v-3a/NEW! BATLI 3.7V 3A Batería LiPo BATLI 3.7V 3Ah $49,980
/?add-to-cart=2112810Nofollow No Text
/producto/batli-3-7v-3a/Text duplicate A-TITLE MORE INFO
/producto/pic16f917-i-p/NEW! PIC16F917-I/P Microcontrolador PIC 8 bits versátil para proyectos embebidos $17,969
/?add-to-cart=2112167Nofollow No Text
/producto/pic16f917-i-p/Text duplicate A-TITLE MORE INFO
/producto/kit-29326/NEW! KIT-29326 Kit completo para aprender electrónica y programación $714,000
/?add-to-cart=2112150Nofollow No Text
/producto/kit-29326/Text duplicate A-TITLE MORE INFO
/producto/esp-32-usb-c/SOLD OUT ESP-32 USB C ESP32 Desarrollo – Puerto USB-C $27,965
/producto/esp-32-usb-c/Nofollow No Text
/producto/esp-32-usb-c/Text duplicate A-TITLE MORE INFO
/producto/gx16-2p/NEW! GX16-2P Conector de Aviación GX16-2P – 2 Pines $4,522
/?add-to-cart=2112173Nofollow No Text
/producto/gx16-2p/Text duplicate A-TITLE MORE INFO
/producto/gx16-3p/NEW! GX16-3P Conector de Aviación GX16-3P – 3 Pines $4,760
/?add-to-cart=2112175Nofollow No Text
/producto/gx16-3p/Text duplicate A-TITLE MORE INFO
/producto/l80-r/L80-R Módulo GPS Quectel con antena integrada. $20,944
/?add-to-cart=45164Nofollow No Text
/producto/l80-r/Text duplicate A-TITLE MORE INFO
/producto/esp32-wroom-32d/ESP32-WROOM-32D Módulo Wi-Fi + Bluetooth LE ESP32-WROOM-32D. $21,420
/?add-to-cart=2070445Nofollow No Text
/producto/esp32-wroom-32d/Text duplicate A-TITLE MORE INFO
/producto/hc-5-proto/HC-5 PROTO Tarjeta HC-05 (Adaptada para usar en Protoboard). $19,040
IMG-ALT HC-5 PROTO
/?add-to-cart=2541Nofollow No Text
/producto/hc-5-proto/Text duplicate A-TITLE MORE INFO
/producto/l86/SALE! L86 Módulo L86 con antena embebida tipo GPS/GLONASS de alta precisión para aplicaciones de ubicación satelital. $39,270 El precio original era: $39,270...
/?add-to-cart=2439Nofollow No Text
/producto/l86/Text duplicate A-TITLE MORE INFO
/producto/ec200a-au/EC200A-AU Módulo LTE Cat 4 Quectel EC200A-AU $71,400
/?add-to-cart=2082790Nofollow No Text
/producto/ec200a-au/Text duplicate A-TITLE MORE INFO
/category/nuevos-lanzamientos/Nuevos Lanzamientos
/raspberry-pi-5-vs-4-b-el-salt...Raspberry Pi 5 vs. 4 B: ¡El Salto de Generación!
/comunicacion-serial-raspberry...Read more +
/category/raspberry-pi/Raspberry Pi
/category/nuevos-lanzamientos/Text duplicate Nuevos Lanzamientos
/comunicacion-serial-raspberry...Comunicacion Serial Raspberry Pi
/raspberry-pi-3-modelo-b-proxi...Text duplicate Read more +
/category/nuevos-lanzamientos/Text duplicate Nuevos Lanzamientos
/category/otros-productos/Otros Productos
/raspberry-pi-3-modelo-b-proxi...Raspberry Pi 3 Model B+ Ahora disponible
/comunidad/New window Nuestro Foro Conéctate con nuestra comunidad
https://www.raspberrypi.com/New window External Subdomain DISTRIBUIDOR OFICIAL
/categoria-producto/1sheeld/IMG-ALT 1sheeld
/?s=atmel&post_type=productIMG-ALT ATMEL
/categoria-producto/arduino/IMG-ALT Arduino
/categoria-producto/cubieboard/IMG-ALT Cubieboard
/categoria-producto/adafruit/No Text
/categoria-producto/dfrobot/IMG-ALT DF Robot
/categoria-producto/intel-2/IMG-ALT intel
/categoria-producto/digilent/IMG-ALT Diligent
/categoria-producto/pololu/IMG-ALT pololu
https://www.replicawatches.to/External Subdomain replica watches
/quienes-somos/Quiénes Somos
/como-comprar/Text duplicate Cómo comprar
/envios-y-devoluciones/Text duplicate Envíos y Devoluciones
/politica-tratamiento-datos/Políticas de Privacidad
/terminos-y-condiciones/Text duplicate Términos y Condiciones
/politica-tratamiento-datos/Política de Tratamiento de Datos
https://www.facebook.com/sigma...New window External Subdomain Text duplicate A-TITLE Facebook
https://twitter.com/@Sigma_ElectrNew window External A-TITLE Sigue nuestros tweets!
https://www.sigmaelectronica.net/Text duplicate IMG-ALT Sigma Electrónica
https://www.miwebcreativa.com/...External Subdomain Mi Web Creativa

Server configuration

HTTP redirects
(Critically important)
This page redirects to "https://www.sigmaelectronica.net/"
HTTP header
(Important)
The web server version is sent within the HTTP header.
No X-Powered HTTP header is sent.
The web server transmits the web page (HTML) in compressed form.
Performance
(Somewhat important)
The page response time of 0.77 seconds is longer than the recommended limit of 0.4 seconds. A high response time unnecessarily slows down search engine crawling and results in bad user experience as well.
A Content Delivery Network like Google Hosted Libraries can save bandwidth for the JQuery files.
The file size of the HTML document is very large (865 kB).

HTTP Response Header

NameValue
dateThu, 25 Dec 2025 17:22:05 GMT
content-typetext/html; charset=UTF-8
content-length135180
cache-controlpublic, max-age=-1233,public
expiresThu, 25 Dec 2025 17:01:31 GMT
last-modifiedThu, 25 Dec 2025 16:01:31 GMT
etag"2100c-694d5fdb-0;gz"
accept-rangesbytes
content-encodinggzip
varyAccept-Encoding,Origin
wpx1
strict-transport-securitymax-age=31536000; includeSubDomains; preload
x-frame-optionsSAMEORIGIN
x-xss-protection1; mode=block
x-content-type-optionsnosniff
pragmapublic
x-turbo-charged-byLiteSpeed
x-edge-locationWPX CLOUD/AMS04
alt-svch3=":443"; ma=86400
x-quich3
serverWPX CLOUD/AMS04
x-cache-statusMISS
statuscode200
http_versionHTTP/2

External factors

This page has only a few links from other websites.
This page only has backlinks from 14 referring domains.
This page only has 120 backlinks.
This page only has few backlinks from 14 different ip addresses.

Links from Wikipedia

No links from Wikipedia were found.

Robots.txt

User-agent: *
Disallow: /wp-content/uploads/wc-logs/
Disallow: /wp-content/uploads/woocommerce_transient_files/
Disallow: /wp-content/uploads/woocommerce_uploads/
Disallow: /*?add-to-cart=
Disallow: /*?*add-to-cart=
Disallow: /wp-admin/
Allow: /wp-admin/admin-ajax.php

Sitemap: https://www.sigmaelectronica.net/sitemap_index.xml

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www.sigmaelectronica.net
Inicio - Sigma Electrónica

Most important keywords

Following keywords were found. You can check the keyword optimization of this page for each keyword.

KeywordResultRecheck
Sigma77%Check
Sigma Electrónica74%Check
Electrónica71%Check
Sigma Electronica59%Check
Raspberry Pi49%Check
Sigma Electronica LTDA49%Check
sigmaelectronica48%Check
net48%Check
Blog47%Check
Raspberry46%Check
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