Spc.noaa.gov - SEO Checker

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Overview of the SEO Check
Meta information
79% 
Page quality
68% 
Page structure
79% 
Link structure
1% 
Server
31% 
External factors
100% 
SEO Score
Response time
1.02 s
File size
50.30 kB
Words
790
Media files
39
Number of links
127 internal / 44 external

Task list of SEO Improvements

Meta specifications

Title
(Critically important)
NOAA/NWS Storm Prediction Center
The length of the page title is perfect. (331 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)
No canonical link is specified.
Language
(Somewhat important)
Language detected in text: en
Language defined in meta tags: en-us
Server location: United States of America
The following language is defined by HTML: en-us
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)
This page is hosted on a subdomain. Use a top level domain for better SEO results.
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 XHTML 1.0 Transitional 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
DC.titleNOAA/NWS Storm Prediction Center
DC.languageEN-US
languageEN-US
Content-Typetext/html; charset=UTF-8
Expires-1

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Page quality

Content
(Critically important)
The average number of words per sentence of 4.37 words is low.
This page contains 790 words. That's ok.
16.2% 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.
9 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)
No viewpoint tag is provided.
No 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 16 tags for this page.
Image SEO
(Somewhat important)
27 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
https://www.spc.noaa.gov/new/images/SPC.pngSPC Logo
/new/images/feature_stories_bullet2.pngNo alt attribute provided
/products/activity_loop.gifSPC Products Overview
/products/outlook/day1otlk-overview.gifDay 1 Convective Outlook
/products/watch/validww.pngCurrent Watches
/products/md/validmd.pngCurrent MCDs
/climo/reports/today.gifToday's Reports
/exper/mesoanalysis/sectorloop2.gifSPC Mesoanalysis Page
/products/fire_wx/day1fireotlk-overview.gifDay 1 Fire Weather Outlook
forecast.weather.gov/wwamap/png/US.pngCurrent Hazardous Weather Watches, Warnings, and Advisories
...isc/climographics/any_severe/sm_109 .pngNo alt attribute provided
/misc/climographics/all_torn/sm_109%0A.pngNo alt attribute provided
/misc/climographics/all_wind/sm_109%0A.pngNo alt attribute provided
/misc/climographics/all_hail/sm_109%0A.pngNo alt attribute provided
/misc/climographics/sig_torn/sm_109%0A.pngNo alt attribute provided
/misc/climographics/sig_wind/sm_109%0A.pngNo alt attribute provided
/misc/climographics/sig_hail/sm_109%0A.pngNo alt attribute provided
/new/images/repCount_sm.pngNo alt attribute provided
.../images/SPC_outlook_final_updated-sm.pngNo alt attribute provided
/new/images/SPC-final-spanish-sm.pngNo alt attribute provided
/new/images/WatchWarn.pngNo alt attribute provided
/new/images/ForecastMade.jpgNo alt attribute provided
/new/images/TornSafety.pngNo alt attribute provided
/new/images/href_sm.pngNo alt attribute provided
/new/images/SPC_SREF.pngNo alt attribute provided
/new/images/SPC_mesoanalysis.pngNo alt attribute provided
/new/images/SPC_sounding.pngNo alt attribute provided
/new/images/SPC_env_browser.pngNo alt attribute provided
/new/images/SPC_UA.pngNo alt attribute provided
/wcm/thumbs/2024_torww_to_date_sm.pngNo alt attribute provided
/wcm/thumbs/2024_svrww_to_date_sm.pngNo alt attribute provided
...c/fire_climo/Figs_Climo100ac/sm_109 .pngNo alt attribute provided
...c/fire_climo/Figs_Climo300ac/sm_109 .pngNo alt attribute provided
.../fire_climo/Figs_Climo1000ac/sm_109 .pngNo alt attribute provided
.../fire_climo/Figs_Climo5000ac/sm_109 .pngNo alt attribute provided
/new/SPCCaseArchive/rep_thumb.gifNo alt attribute provided
/misc/usagov_logo_color_110.pngusa.gov
/new/images/ArrowScrollUp.pngClick-to-scroll-up Image

Page structure

H1 heading
(Critically important)
There is no H1 heading specified.
Headings
(Important)
The structure of headings is missing one or more levels. Do not skip heading levels.

Heading structure

Heading levelContent
H2 All Products
H2 Watches
H2 MDs
H2 Outlooks
H2 Fire
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.
15 links don't have an anchor text.
There are 3 links with a trivial anchor text.
The number of internal links is ok.
There are too many external links (44) on this page.

Found links on this page

LinkAttributesAnchor text
/faq/index.htmlUTC/GMT/Zulu
/misc/feedback.htmlFeedback
/exper/mobile/Mobile
/misc/aboutus.htmlAbout Us
https://www.weather.gov/organi...New window External Subdomain Organization
/sitemap.htmlSite Map
https://www.spc.noaa.gov/HOME
https://www.spc.noaa.gov/New window Home Page
A-TITLE Home Page
/classic.htmlNew window Classic Home Page
A-TITLE Classic Home Page
/new/SPCNews/news.htmlNEWS
https://www.weather.gov/newsNew window External Subdomain NWS News
A-TITLE NWS News
https://www.weather.gov/ncep/N...New window External Subdomain NCEP News
A-TITLE NCEP Quarterly Newsletter
/new/SPCNews/news.htmlNew window SPC News
A-TITLE SPC News
/products/SPC PRODUCTS
/products/All Forecasts
A-TITLE All Forecasts
/products/watch/Severe Thunderstorm/Tornado Watches
A-TITLE Current Watches
/products/md/Mesoscale Discussions
A-TITLE Mesoscale Discussions
/products/outlook/Convective Outlooks
A-TITLE Convective Outlooks
/products/exper/enhtstm/Thunderstorm Outlook
A-TITLE Thunderstorm Outlook
/products/fire_wx/overview.htmlFire Weather Outlooks
A-TITLE Fire Weather Outlook
/products/archive/Product Overview
A-TITLE Product Overview
/products/exper/Experimental Products
A-TITLE Exeprimental Products
https://www.spc.noaa.gov/gis/Products in GIS File Formats
A-TITLE Products in GIS File Formats
/aboutrss.htmlRSS Feeds
A-TITLE RSS Feeds
https://www.weather.gov/subscr...New window External Subdomain Email Alerts
A-TITLE Email Alerts
/climo/online/WEATHER INFO
/climo/online/Storm Reports
A-TITLE Storm Reports
/exper/reports/Storm Reports Prototype
A-TITLE Storm Reports Prototype
/new/ReportPlot/reportPlot.phpStorm Report Trends
A-TITLE Storm Report Trends
/new/SVRclimo/climo.php?parm=a...Severe Weather Climatology
A-TITLE Severe Weather Climatology
https://www.spc.noaa.gov/archive/Product Archive
A-TITLE SPC Product Archive
https://www.weather.gov/New window External Subdomain Watch/Warning Map
A-TITLE Watch/Warning Map
https://www.weather.gov/Radar/New window External Subdomain National RADAR
A-TITLE National RADAR
http://www.nws.noaa.gov/nwr/New window External Subdomain NOAA Weather Radio
A-TITLE NOAA Weather Radio All Hazards
https://www.spc.noaa.gov/exper/FORECAST TOOLS
/exper/mesoanalysis/Mesoanalysis
A-TITLE Mesoanalysis
/exper/soundings/Observed Sounding Analysis
A-TITLE Observed Sounding Analysis
/exper/soundingclimo/Sounding Climatology
A-TITLE Sounding Climatology
/climo/dataviewer/Lightning Climatology
A-TITLE Lightning Climatology
/obswx/maps/Upper-Air Maps
A-TITLE Upper-Air Maps
/exper/href/HREF
A-TITLE HREF
/exper/hrrr/HRRR Browser
A-TITLE HRRR
/exper/sref/index.phpSREF
A-TITLE SREF
/exper/sref/fplumes/SREF Plumes
A-TITLE SREF Plumes
/exper/firecomp/Fire Weather Composite Maps
A-TITLE Fire Weather Composite Maps
/exper/compmap/Compmap
A-TITLE Compmap
/publications/RESEARCH
/publications/Publications
A-TITLE Publications
/exper/archive/events/Severe Thunderstorm Event Archive
A-TITLE Severe Thunderstorm Event Archive
/exper/envbrowser/Tornado Environment Browser
A-TITLE Tornado Environment Browser
/exper/outbreaks/Violent Tornado Outbreaks
A-TITLE Violent Tornado Outbreaks
https://hwt.nssl.noaa.gov/New window External Subdomain SPC-NSSL Hazardous Weather Testbed
A-TITLE SPC-NSSL Hazardous Weather Testbed
https://www.spc.noaa.gov/faq/OUTREACH
/misc/aboutus.htmlAbout
A-TITLE About the SPC
https://www.spc.noaa.gov/faq/FAQ
A-TITLE SPC FAQ
https://www.spc.noaa.gov/wcm/WCM Page
A-TITLE WCM Page
/faq/tornado/About Tornadoes
A-TITLE About Tornadoes
/misc/AbtDerechos/derechofacts...About Derechos
A-TITLE About Derechos
https://www.weather.gov/safety/New window External Subdomain Severe Weather Safety
A-TITLE Severe Weather Safety
https://www.spc.noaa.gov/efscale/Enhanced Fujita Scale
A-TITLE EF Scale
/exper/spcousom/Video Lecture Series
A-TITLE Video Lecture Series
/history/early.htmlHistory
A-TITLE History of the SPC
http://www.noaa.gov/NOAA-Commu...New window External Subdomain NOAA Communications
A-TITLE NOAA Communications
https://www.spc.noaa.gov/staff/Staff Listing
A-TITLE Staff Listing
https://nwc.ou.edu/tours/New window External Subdomain Public Tours
A-TITLE Tours
https://www.weather.gov/New window External Subdomain NWS/NCEP
https://www.weather.gov/New window External Subdomain National Weather Service (NWS)
A-TITLE NWS
https://www.ncep.noaa.gov/New window External Subdomain National Centers for Environmental Prediction (NCEP)
A-TITLE NCEP
https://www.aviationweather.gov/New window External Subdomain Aviation Weather Center (AWC)
A-TITLE AWC
https://www.cpc.ncep.noaa.gov/New window External Subdomain Climate Prediction Center (CPC)
A-TITLE CPC
https://www.emc.ncep.noaa.gov/New window External Subdomain Environmental Modeling Center (EMC)
A-TITLE EMC
https://www.nco.ncep.noaa.gov/New window External Subdomain NCEP Central Operations (NCO)
A-TITLE NCO
https://www.nhc.noaa.gov/New window External Subdomain National Hurricane Center (NHC)
A-TITLE NHC
https://ocean.weather.gov/New window External Subdomain Ocean Prediction Center (OPC)
A-TITLE OPC
https://www.swpc.noaa.gov/New window External Subdomain Space Weather Prediction Center (SWPC)
A-TITLE SWPC
http://www.wpc.ncep.noaa.gov/New window External Subdomain Weather Prediction Center (WPC)
A-TITLE WPC
/aboutrss.htmlA-TITLE SPC News RSS
https://twitter.com/NWSSPCNew window External A-TITLE SPC Twitter
https://facebook.com/NWSSPCNew window External A-TITLE SPC Facebook
/products/outlook/day1otlk.htmlDay 1 Convective Outlook
/products/Overview
/products/outlook/Conv. Outlook
/products/watch/Watches
/products/md/MDs
/climo/online/Text duplicate Storm Reports
/exper/mesoanalysis/Text duplicate Mesoanalysis
/products/fire_wx/overview.htmlFire
https://weather.gov/largemap.phpExternal Hazards
/products/IMG-ALT SPC Products Overview
/products/outlook/Text duplicate IMG-ALT Day 1 Convective Outlook
/products/watch/IMG-ALT Current Watches
/products/md/IMG-ALT Current MCDs
/climo/online/IMG-ALT Today's Reports
/exper/mesoanalysis/IMG-ALT SPC Mesoanalysis Page
/products/fire_wx/overview.htmlIMG-ALT Day 1 Fire Weather Outlook
https://weather.gov/largemap.phpExternal IMG-ALT Current Hazardous Weather Watches, Warnings, and Advisories
/products/outlook/Severe
A-TITLE SPC Convective Outlooks
/products/outlook/day1otlk.htmlEnhanced
A-TITLE Day 1 Convective Outlook Valid: 18/1630Z - 19/1200Z
/products/outlook/day2otlk.htmlMarginal
A-TITLE Day 2 Convective Outlook Valid: 19/1200Z - 20/1200Z
/products/outlook/day3otlk.htmlNo Severe
A-TITLE Day 3 Convective Outlook Valid: 20/1200Z - 21/1200Z
/products/exper/day4-8/No Area
A-TITLE Day 4-8 Severe Weather Outlook Valid: 21/1200Z - 22/1200Z
/products/exper/day4-8/Text duplicate No Area
A-TITLE Day 4-8 Severe Weather Outlook Valid: 22/1200Z - 23/1200Z
/products/exper/day4-8/Text duplicate No Area
A-TITLE Day 4-8 Severe Weather Outlook Valid: 23/1200Z - 24/1200Z
/products/exper/day4-8/Text duplicate No Area
A-TITLE Day 4-8 Severe Weather Outlook Valid: 24/1200Z - 25/1200Z
/products/exper/day4-8/Text duplicate No Area
A-TITLE Day 4-8 Severe Weather Outlook Valid: 25/1200Z - 26/1200Z
/products/fire_wx/overview.htmlText duplicate Fire
A-TITLE SPC Fire Weather Outlooks
/products/fire_wx/fwdy1.htmlNo Critical
A-TITLE Day 1 Fire Weather Outlook Valid: 181700Z - 191200Z
/products/fire_wx/fwdy2.htmlText duplicate No Critical
A-TITLE Day 2 Fire Weather Outlook Valid: 191200Z - 201200Z
/products/exper/fire_wx/Text duplicate No Area
A-TITLE Day 3-8 Fire Weather Outlook Valid: 201200Z - 211200Z
/products/exper/fire_wx/Text duplicate No Area
A-TITLE Day 3-8 Fire Weather Outlook Valid: 211200Z - 221200Z
/products/exper/fire_wx/Text duplicate No Area
A-TITLE Day 3-8 Fire Weather Outlook Valid: 221200Z - 231200Z
/products/exper/fire_wx/Text duplicate No Area
A-TITLE Day 3-8 Fire Weather Outlook Valid: 231200Z - 241200Z
/products/exper/fire_wx/Text duplicate No Area
A-TITLE Day 3-8 Fire Weather Outlook Valid: 241200Z - 251200Z
/products/exper/fire_wx/Text duplicate No Area
A-TITLE Day 3-8 Fire Weather Outlook Valid: 251200Z - 261200Z
/misc/climographics/any_severe...New window A-TITLE Any Severe for 18 Apr
/misc/climographics/all_torn/1...New window No Text
/misc/climographics/all_wind/1...New window No Text
/misc/climographics/all_hail/1...New window No Text
/misc/climographics/sig_torn/1...New window No Text
/misc/climographics/sig_wind/1...New window No Text
/misc/climographics/sig_hail/1...New window No Text
/new/SVRclimo/climo.php?parm=a...Trivial anchor text
here
/new/ReportPlot/reportPlot.phpText duplicate Trivial anchor text
here
/new/images/SPC_outlook_final_...New window A-TITLE Convective Outlook Category Descriptions
/new/images/SPC-final-spanish.pngNew window A-TITLE Convective Outlook Category Descriptions in Spanish
https://www.youtube.com/watch?...External Subdomain A-TITLE What's a Watch?
https://youtu.be/PHMlpv5vJ_YExternal A-TITLE How's a Forecast Made?
/faq/tornado/New window A-TITLE Tornado Safety
/faq/tornado/Tips
/exper/href/New window Text duplicate A-TITLE HREF
/exper/sref/New window No Text
/exper/mesoanalysis/new/New window No Text
/exper/soundings/New window No Text
/exper/envbrowser/New window No Text
/obswx/maps/New window No Text
/misc/fire_climo/Figs_Climo100...New window A-TITLE 100 acres for 18 Apr
/misc/fire_climo/Figs_Climo300...New window No Text
/misc/fire_climo/Figs_Climo100...New window No Text
/misc/fire_climo/Figs_Climo500...New window No Text
/new/FWclimo/climo.php?parm=100acText duplicate Trivial anchor text
here
/publications/edwards/29may12.pdfRight-Moving Supercell Tornadogenesis during Interaction with a Left-Moving Supercell's Rear-Flank Outflow
/publications/edwards/TLX-anim...supplemental radar loop, standard enhancements
/publications/edwards/TLX-anim...supplemental radar loop, colorblind enhancements
/publications/squitieri/derech...New window A Historical Overview on the Science of Derechos. Part II: Parent Storm Structure, Environmental Conditions, and History of Numerical Forecasts
/publications/squitieri/derech...New window A Historical Overview on the Science of Derechos. Part I: Identification, Climatology, and Societal Impacts
/publications/thompson/rm-qlcs...New window A Comparison of Right-Moving Supercell and Quasi-Linear Convective System Tornadoes in the Contiguous United States 2003-21
/publications/gallo/wofs-hwt.pdfNew window Exploring the Watch-to-Warning Space: Experimental Outlook Performance during the 2019 Spring Forecasting Experiment in NOAA's Hazardous Weather Testbed
/publications/squitieri/gridwr...New window On the Changes in Convection-Allowing WRF Forecasts of MCS Evolution due to Decreases in Model Horizontal and Vertical Grid Spacing. Part II: Impacts on QPFs
/publications/squitieri/gridwr...New window On the Changes in Convection-Allowing WRF Forecasts of MCS Evolution due to Decreases in Model Horizontal and Vertical Grid Spacing. Part I: Changes in Cold ...
/publications/harrison/hrefcal...New window Utilizing the High-Resolution Ensemble Forecast System to Produce Calibrated Probabilistic Thunderstorm Guidance
/publications/New window SPC publication archive
/exper/archive/event.php?date=...New window Apr 17, 2024
/exper/archive/event.php?date=...New window No Text
https://twitter.com/NWSSPC?ref...External Tweets by NWSSPC
https://www.usa.gov/New window External Subdomain IMG-ALT usa.gov
https://www.noaa.gov/New window External Subdomain NOAA
https://www.weather.gov/New window External Subdomain National Weather Service
https://www.ncep.noaa.gov/New window External Subdomain National Centers for Environmental Prediction
https://www.spc.noaa.gov/Storm Prediction Center
https://www.weather.gov/discla...External Subdomain Disclaimer
https://www.cio.noaa.gov/servi...External Subdomain Information Quality
https://www.weather.gov/helpExternal Subdomain Help
https://www.weather.gov/glossaryExternal Subdomain Glossary
https://www.weather.gov/privacyExternal Subdomain Privacy Policy
https://www.rdc.noaa.gov/~foia/External Subdomain Freedom of Information Act (FOIA)
https://www.weather.gov/aboutExternal Subdomain Text duplicate About Us
https://www.weather.gov/careersExternal Subdomain Career Opportunities
https://www.noaa.gov/New window External Subdomain No Text
https://www.weather.gov/New window External Subdomain No Text
https://www.spc.noaa.gov/No Text
https://www.doc.gov/New window External Subdomain No Text

Server configuration

HTTP redirects
(Critically important)
This page redirects to "https://www.spc.noaa.gov/"
HTTP header
(Important)
The HTML page should be transferred using GZip compression.
The used PHP version is outdated and may be a security risk.
The X-powered header is sent within the response header. (unnecessary)
Performance
(Somewhat important)
The page response time is slow (1.02 seconds). The response time should be less than 0.4 seconds. Slow websites are bad for search engine bots and also result in bad user experience.
The file size of the HTML document is fine (50 kB).

HTTP Response Header

NameValue
content-typetext/html; charset=UTF-8
dateThu, 18 Apr 2024 19:52:53 GMT
serverApache
cache-controlprivate, max-age=0, must-revalidate
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referrer-policysame-origin
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http_versionHTTP/2

External factors

Blacklists
(Nice to have)
This website is not classified "for adult only".
This page is referenced by wikipedia.
This website has excellent links from other websites.
This page has backlinks from 10,831 referring domains.
This page has 3,322,614 backlinks.
This page has backlinks from 6,005 different ip addresses.
Facebook popularity
(Somewhat important)
The page has 0 shares and comments on Facebook.

Links from Wikipedia

You can find more links using Wikipedia search

Robots.txt

User-agent: usasearch
Crawl-delay: 2

User-agent: *
Crawl-delay: 10

Sitemap: https://www.spc.noaa.gov/sitemap.xml

Disallow: /staff/mkay/greece/
Disallow: /exper/mref_mars/
Disallow: /cgi-bin-spc/
Disallow: /exper/sref/srefdrb.html
Disallow: zz.html
Disallow: /faq/tornado.save.20060327/
Disallow: /misc/AbtDerechos.save.20060327/
Disallow: /exper/fcstfirewxltg/
Disallow: /products/date.txt
Disallow: /site.php

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Most important keywords

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

KeywordResultRecheck
NOAA58%Check
SPC50%Check
NOAA weather48%Check
Center46%Check
Storm46%Check
Prediction46%Check
NWS46%Check
Prediction Center46%Check
Storm Prediction Center46%Check
Weather Prediction Center43%Check
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