Websites Powered by SparkPost
24,826 websites tracked using SparkPost (Email) · www.sparkpost.com
SparkPost is a email delivery or marketing service. Its official site is sparkpost.com. PoweredBy tracks the websites that use SparkPost across the public web; the tracked counts, adoption trend, and site list on this page are updated from our ongoing crawl of the email ecosystem.
Usage trend
5K
10K
15K
20K
Aug 2022
Aug 2023
Jul 2024
Jul 2025
Jun 2026
Domains observed using SparkPost in each month's HTTP Archive crawl,
Aug 2022 to Jun 2026 · peak 16,879 in Apr 2023. The tracked total above also
counts sites not re-crawled recently.
Core Web Vitals
LCP 1.8 s
INP 75 ms
CLS 0
TTFB 800 ms
Median site among 14,553 SparkPost sites with Chrome UX data, p75 values, Jun 2026.
Top countries
United States
6,224
United Kingdom
2,983
Czechia
2,915
Canada
2,263
India
2,180
Italy
2,084
Germany
2,072
France
1,943
Sites using SparkPost by audience country, Chrome UX Report.
Top sites by authority
9+
2% · 7 of 372 sites
8+
1% · 93 of 7,677 sites
7+
<1% · 354 of 45,712 sites
6+
<1% · 687 of 110,136 sites
5+
<1% · 1,243 of 246,751 sites
The share of the web's most authoritative domains, by Open Page Rank tier, seen running SparkPost in recent crawls. Only 372 domains worldwide score 9 or higher.
Websites using SparkPost
| # | Domain | Open Page RankOPR | Est. monthly visits (US)Visits (US) | Keywords | First seen |
|---|---|---|---|---|---|
| 1 | spotify.com | 9.40/10 | 2,864,300 | 78,065 | Dec 2024 |
| 2 | weebly.com | 9.24/10 | 162,400 | 11,089 | Aug 2022 |
| 3 | ca.gov | 9.23/10 | 1,457,100 | 28,722 | Aug 2022 |
| 4 | issuu.com | 9.17/10 | 347,600 | 494,838 | Jul 2024 |
| 5 | berkeley.edu | 9.10/10 | 166,900 | 5,412 | Apr 2023 |
| 6 | sourceforge.net | 9.06/10 | 1,301,600 | 345,637 | Aug 2022 |
| 7 | uk.com | 9.00/10 | 2 | 12 | Aug 2022 |
| 8 | britannica.com | 8.97/10 | 90,729,000 | 5,444,426 | Nov 2025 |
| 9 | gofundme.com | 8.96/10 | 600,400 | 209,867 | Sep 2023 |
| 10 | meetup.com | 8.94/10 | 338,900 | 170,698 | Jun 2024 |
| 11 | uchicago.edu | 8.92/10 | 63,700 | 10,331 | Apr 2023 |
| 12 | opensource.org | 8.89/10 | 22,200 | 6,030 | Jun 2026 |
| 13 | fandom.com | 8.87/10 | 96,300 | 43,935 | Feb 2026 |
| 14 | virginia.gov | 8.82/10 | 339,900 | 20,933 | Feb 2023 |
| 15 | utah.gov | 8.80/10 | 129,900 | 27,432 | Aug 2023 |
| 16 | georgetown.edu | 8.78/10 | 138,100 | 27,817 | Aug 2022 |
| 17 | asana.com | 8.77/10 | 542,100 | 89,414 | Sep 2023 |
| 18 | rutgers.edu | 8.75/10 | 147,400 | 31,478 | Aug 2022 |
| 19 | bluehost.com | 8.74/10 | 143,100 | 44,914 | Aug 2022 |
| 20 | nj.gov | 8.74/10 | 2,479,000 | 955,576 | Feb 2024 |
| 21 | okta.com | 8.69/10 | 251,200 | 35,664 | Oct 2025 |
| 22 | reactjs.org | 8.67/10 | - | - | Aug 2022 |
| 23 | salon.com | 8.67/10 | 131,500 | 118,703 | Feb 2025 |
| 24 | azure.com | 8.66/10 | - | - | Aug 2022 |
| 25 | mastercard.com | 8.66/10 | 866,600 | 105,364 | Feb 2026 |
| 26 | evernote.com | 8.66/10 | 117,300 | 38,165 | Aug 2022 |
| 27 | umass.edu | 8.64/10 | 348,000 | 111,861 | Mar 2026 |
| 28 | gwu.edu | 8.64/10 | 257,600 | 13,986 | Oct 2022 |
| 29 | seattletimes.com | 8.62/10 | 979,600 | 553,869 | Nov 2023 |
| 30 | smartsheet.com | 8.59/10 | 327,600 | 88,407 | Nov 2022 |
| 31 | tickettailor.com | 8.58/10 | 21,600 | 23,474 | Aug 2022 |
| 32 | dhl.com | 8.56/10 | 1,187,200 | 132,595 | Feb 2026 |
| 33 | signupgenius.com | 8.56/10 | 241,100 | 26,896 | Dec 2022 |
| 34 | la.gov | 8.56/10 | - | - | Jan 2025 |
| 35 | cuni.cz | 8.56/10 | 4,400 | 1,637 | Aug 2022 |
| 36 | cbssports.com | 8.55/10 | 16,151,900 | 2,174,018 | Aug 2022 |
| 37 | udel.edu | 8.55/10 | 126,300 | 47,905 | Mar 2023 |
| 38 | arkansas.gov | 8.55/10 | 1,000 | 768 | Nov 2023 |
| 39 | disney.com | 8.54/10 | 45,600 | 15,087 | Oct 2024 |
| 40 | allevents.in | 8.53/10 | 251,000 | 805,035 | Aug 2022 |
| 41 | fortinet.com | 8.52/10 | 755,000 | 88,489 | Aug 2022 |
| 42 | feedingamerica.org | 8.52/10 | 425,800 | 103,569 | Nov 2023 |
| 43 | diabetes.org | 8.52/10 | 940,500 | 179,281 | Jul 2024 |
| 44 | akc.org | 8.49/10 | 9,848,200 | 519,909 | Mar 2024 |
| 45 | grafana.com | 8.48/10 | 47,400 | 56,250 | Nov 2024 |
| 46 | blackberry.com | 8.46/10 | 11,700 | 3,327 | May 2025 |
| 47 | rozhlas.cz | 8.45/10 | 86 | 9 | Aug 2022 |
| 48 | rit.edu | 8.44/10 | 158,100 | 87,161 | Jan 2026 |
| 49 | refinery29.com | 8.43/10 | 757,200 | 635,246 | Aug 2022 |
| 50 | uk.net | 8.41/10 | - | - | Sep 2024 |
| 51 | heritage.org | 8.41/10 | 209,500 | 102,828 | Jan 2023 |
| 52 | thrivecart.com | 8.40/10 | 3,500 | 1,289 | Sep 2025 |
| 53 | gov.sk | 8.36/10 | - | - | Jun 2025 |
| 54 | stjude.org | 8.36/10 | 198,900 | 67,593 | Oct 2023 |
| 55 | vcu.edu | 8.34/10 | 46,700 | 11,697 | Oct 2023 |
| 56 | dropcatch.com | 8.33/10 | 1,300 | 1,231 | Aug 2022 |
| 57 | impact.com | 8.32/10 | 48,800 | 9,808 | Nov 2025 |
| 58 | baylor.edu | 8.29/10 | 93,700 | 12,866 | Jul 2025 |
| 59 | mi.gov | 8.29/10 | - | - | Feb 2024 |
| 60 | metricool.com | 8.27/10 | 47,100 | 38,377 | Aug 2022 |
| 61 | iit.edu | 8.27/10 | 80,800 | 30,957 | Aug 2022 |
| 62 | nextcloud.com | 8.26/10 | 19,300 | 20,828 | Aug 2022 |
| 63 | cbpp.org | 8.26/10 | 223,300 | 93,324 | Aug 2022 |
| 64 | kajabi.com | 8.25/10 | 8,500 | 8,599 | Sep 2023 |
| 65 | heureka.cz | 8.24/10 | 200 | 1,844 | Aug 2022 |
| 66 | hashnode.com | 8.22/10 | 280 | 541 | Aug 2022 |
| 67 | ufsc.br | 8.22/10 | 120 | 86 | Aug 2022 |
| 68 | revolut.com | 8.19/10 | 5,164,800 | 240,777 | Sep 2022 |
| 69 | sandiego.gov | 8.19/10 | 922,400 | 195,366 | May 2024 |
| 70 | gmfus.org | 8.18/10 | 30,100 | 10,154 | Dec 2022 |
| 71 | piktochart.com | 8.18/10 | 205,300 | 70,410 | Jul 2025 |
| 72 | aeroport.fr | 8.15/10 | 98 | 153 | Aug 2022 |
| 73 | nkp.cz | 8.14/10 | 250 | 72 | Sep 2023 |
| 74 | springerprofessional.de | 8.11/10 | 3,800 | 12,344 | Aug 2022 |
| 75 | whmcs.com | 8.10/10 | 260 | 285 | Aug 2022 |
| 76 | blockchain.com | 8.10/10 | 53,500 | 8,855 | Aug 2022 |
| 77 | nau.edu | 8.09/10 | 99,500 | 18,711 | Aug 2022 |
| 78 | talentlms.com | 8.08/10 | 23,000 | 7,086 | Aug 2022 |
| 79 | voedingscentrum.nl | 8.08/10 | 410 | 754 | Mar 2023 |
| 80 | facs.org | 8.07/10 | 132,400 | 62,821 | Oct 2023 |
| 81 | crisisgroup.org | 8.06/10 | 103,000 | 35,063 | May 2023 |
| 82 | podcast.de | 8.06/10 | 380 | 1,212 | Feb 2023 |
| 83 | marinetraffic.com | 8.05/10 | 145,300 | 44,337 | Aug 2022 |
| 84 | komen.org | 8.05/10 | 64,200 | 22,672 | Aug 2022 |
| 85 | camcom.it | 8.05/10 | - | - | Mar 2025 |
| 86 | westernsydney.edu.au | 8.05/10 | 21,600 | 20,869 | Nov 2023 |
| 87 | square-enix.com | 8.04/10 | 19,200 | 991 | Nov 2023 |
| 88 | canon.com | 8.04/10 | 11 | 2 | Aug 2022 |
| 89 | utopia.de | 8.04/10 | 850 | 2,172 | Aug 2022 |
| 90 | lyon.fr | 8.03/10 | 1,300 | 1,167 | Aug 2022 |
| 91 | montgomerycountymd.gov | 8.02/10 | 644,200 | 170,050 | Oct 2025 |
| 92 | progressive.com | 8.00/10 | 3,206,900 | 213,108 | Aug 2022 |
| 93 | aauw.org | 8.00/10 | 191,600 | 15,881 | Jun 2023 |
| 94 | restream.io | 7.99/10 | 129,900 | 31,685 | Aug 2022 |
| 95 | fasthosts.co.uk | 7.98/10 | 1,600 | 2,253 | Aug 2022 |
| 96 | wikiloc.com | 7.98/10 | 10,400 | 28,766 | Aug 2022 |
| 97 | chef.io | 7.97/10 | 1,200 | 840 | Aug 2022 |
| 98 | domestika.org | 7.97/10 | 67,100 | 47,163 | Aug 2022 |
| 99 | nationaldaycalendar.com | 7.95/10 | 1,650,300 | 115,930 | Jun 2026 |
| 100 | usc.edu.au | 7.93/10 | 10,800 | 6,500 | Aug 2022 |
Open Page Rank is the domain's authority score (0 to 10, from the open web link graph); the list is ordered by it and covers sites seen in recent crawls. Visits and keywords are estimated US organic search figures.
Download top 10,000 as CSV (zip) →
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