200 Top SEO Ranking Factors May 2026

TOP SEO Factors for 2026-05 previous

Top SEO Factor data is updated daily for latest "month to date" measurements.

	Name	Correlation	#1 Max	Page 1 Avg	Usage %	Searches %
1	Number of Distinct Entities Used Diversity	-0.61	31	30	63 %	50 %
2	Entities in the HTML Tag Relevancy	-0.61	317	312	61 %	50 %
3	Entities in Sentences Relevancy	-0.61	316	311	61 %	50 %
4	Number of Unique LSI Words Used Diversity	-0.6	576	566	63 %	50 %
5	LSI Words in Sentences Relevancy	-0.58	2378	2338	61 %	50 %
6	Has Copyright Trust	-0.55	1	1	60 %	50 %
7	Number of P Tags Size	-0.55	57	56	58 %	50 %
8	Is Purchase Page Other	-0.55	1	1	58 %	50 %
9	Number of Internal Links Authority	-0.54	311	306	61 %	50 %
10	Percentage of DoFollow Internal Links Authority	-0.54	68	67	61 %	50 %
11	Number of Questions Size	-0.54	26	25	53 %	50 %
12	Has Meta Description Relevancy	-0.53	1	1	57 %	50 %
13	Word Count Size	-0.53	2134	2102	63 %	50 %
14	Entities in Meta Description Tag Relevancy	-0.53	3	3	55 %	50 %
15	Meta Description Tag Has Entities Relevancy	-0.53	1	1	57 %	50 %
16	Clean Text Kilobytes Size	-0.52	16	16	60 %	50 %
17	Has Contact Page Trust	-0.52	1	1	57 %	50 %
18	Number of Sentences Size	-0.52	255	250	61 %	50 %
19	Unabridged Word Count Size	-0.52	2530	2493	63 %	50 %
20	Title Tag Has Entities Relevancy	-0.52	1	1	61 %	50 %
21	Has Schema Markup Relevancy	-0.51	1	1	57 %	50 %
22	Uses Schema name Other	-0.51	1	1	57 %	50 %
23	Inline CSS Kilobytes Size	-0.5	38	37	60 %	50 %
24	Number of JavaScript Includes Technology	-0.5	19	18	61 %	50 %
25	Number of Factors Used Diversity	-0.5	136	135	100 %	50 %
26	LSI Words in Title Tag Relevancy	-0.5	11	11	63 %	50 %
27	LSI Words in Meta Description Tag Relevancy	-0.5	23	22	57 %	50 %
28	LSI Words in H1 Tags Relevancy	-0.49	10	10	58 %	50 %
29	Has Entities in H1 Tags Relevancy	-0.48	1	1	57 %	50 %
30	LSI Words in H2 Tags Relevancy	-0.48	91	89	57 %	50 %
31	Has FavIcon Technology	-0.47	1	1	60 %	50 %
32	Number of Images Size	-0.47	55	54	60 %	50 %
33	Title Word Count Size	-0.47	8	8	63 %	50 %
34	Number of Heading Tags Size	-0.47	27	27	60 %	50 %
35	Number of H2 Tags Size	-0.47	10	9	57 %	50 %
36	Uses Schema breadcrumblist Other	-0.47	1	1	44 %	50 %
37	Uses Schema listitem Other	-0.47	1	1	44 %	50 %
38	Has OpenGraph Type Relevancy	-0.46	1	1	47 %	50 %
39	Number of Images with ALT Text Size	-0.46	48	47	60 %	50 %
40	Search Result Domain Length Size	-0.45	15	15	63 %	50 %
41	Search Result Host Length Size	-0.45	15	15	63 %	50 %
42	Number Of JSON-LD Types Relevancy	-0.45	55	54	52 %	50 %
43	Has Entities in H3 Tags Relevancy	-0.45	1	1	41 %	50 %
44	Has OpenGraph Image Relevancy	-0.44	1	1	51 %	50 %
45	Title Length Size	-0.44	41	41	63 %	50 %
46	Entities in H2 Tags	-0.44	11	11	46 %	50 %
47	Uses JSON-LD ListItem Other	-0.44	1	1	39 %	50 %
48	Has Meta Twitter Card Authority	-0.43	1	1	39 %	50 %
49	Number of Absolute URLs Authority	-0.43	357	353	63 %	50 %
50	Has Entities in H2 Tags Relevancy	-0.43	1	1	48 %	50 %
51	LSI Words in H3 Tags Relevancy	-0.43	97	96	51 %	50 %
52	Is Store Page Other	-0.43	1	1	61 %	50 %
53	Number of H3 Tags Size	-0.42	14	14	52 %	50 %
54	Has JSON-LD Schema Markup Relevancy	-0.41	1	1	50 %	50 %
55	Entities in H3 Tags	-0.41	15	15	39 %	50 %
56	Uses JSON-LD BreadcrumbList Other	-0.41	1	1	38 %	50 %
57	Number of Questions In Headings Size	-0.41	4	4	34 %	50 %
58	Uses Schema url Other	-0.41	1	1	49 %	50 %
59	Is Category Page Other	-0.4	1	1	36 %	50 %
60	Number of Questions In H3 Tags Size	-0.39	3	3	24 %	50 %
61	Uses JSON-LD name Other	-0.38	1	1	52 %	50 %
62	Headings Has Question Other	-0.38	1	1	34 %	50 %
63	Flesch Kincaid Reading Grade Level Other	-0.38	3	0	70 %	100 %
64	Number of H1 Tags Size	-0.38	1	1	46 %	100 %
65	Variations in Body Tags Relevancy	-0.37	36	36	38 %	50 %
66	Variations in HTML Tags Relevancy	-0.37	36	36	38 %	50 %
67	Uses JSON-LD Organization Other	-0.37	1	1	36 %	50 %
68	Uses Schema organization Other	-0.37	1	1	36 %	50 %
69	Number of Unique Variations Used Diversity	-0.37	1	1	38 %	50 %
70	Inline JavaScript Kilobytes Size	-0.37	233	148	49 %	100 %
71	Uses Schema description Other	-0.36	1	1	50 %	50 %
72	Load Time Milliseconds Performance	-0.36	1954	1307	51 %	100 %
73	Has Privacy Policy Trust	-0.35	1	1	44 %	100 %
74	Has US Phone Number Trust	-0.35	1	1	17 %	50 %
75	Number of US Phone Numbers Trust	-0.35	11	11	17 %	50 %
76	Number of HTML Comments Size	-0.35	93	58	45 %	100 %
77	Uses JSON-LD url Other	-0.35	1	1	46 %	50 %
78	LSI Words in H4 Tags Relevancy	-0.35	10	9	31 %	50 %
79	Uses Schema product Other	-0.35	1	1	37 %	50 %
80	Number of Top 50 Shared Factors Used Diversity	-0.35	13	10	58 %	100 %
81	Average Words Per Sentence Size	-0.34	46	35	50 %	100 %
82	Number of External Links Authority	-0.34	36	20	47 %	100 %
83	Variations in Div Tags Relevancy	-0.34	13	13	37 %	50 %
84	Search Result Number of Dirs in Path Other	-0.34	2	2	48 %	100 %
85	Number of Forms Technology	-0.33	8	5	42 %	100 %
86	Has Meta Charset Technology	-0.33	1	1	48 %	100 %
87	Number of DoFollow External Links Authority	-0.33	31	18	45 %	100 %
88	Percentage of DoFollow External Links Authority	-0.33	17	10	41 %	100 %
89	Percentage of DoFollow Links Authority	-0.33	80	75	49 %	100 %
90	Has Meta Twitter Site Authority	-0.32	1	1	20 %	50 %
91	Has Terms of Service Trust	-0.32	1	1	39 %	100 %
92	Number of Top 100 Shared Factors Used Diversity	-0.32	34	26	73 %	100 %
93	Entities in H1 Tags	-0.32	2	2	44 %	100 %
94	Uses JSON-LD description Other	-0.32	1	1	46 %	50 %
95	Has Meta Viewport Technology	-0.32	1	1	50 %	100 %
96	Entities in Title Tag Relevancy	-0.32	3	2	48 %	100 %
97	Has Domain Phrase In Title Trust	-0.31	1	1	6 %	50 %
98	Has Meta Keywords Relevancy	-0.31	1	1	10 %	100 %
99	Has Entities in H4 Tags Relevancy	-0.31	1	1	21 %	50 %
100	Uses JSON-LD Product Other	-0.31	1	1	33 %	50 %
101	Search Result Uses HTTPS Other	-0.31	1	1	51 %	100 %
102	Exact Matches in H3 Tags Relevancy	-0.3	1	1	10 %	50 %
103	Variations in H3 Tags Relevancy	-0.3	1	1	10 %	50 %
104	Number of Images without ALT Text Size	-0.3	8	8	34 %	100 %
105	Number of Links Authority	-0.3	318	233	49 %	100 %
106	Uses Schema item Other	-0.3	1	1	31 %	50 %
107	Has Meta Twitter Title Authority	-0.3	1	1	22 %	100 %
108	Number of HTTPS Links Authority	-0.3	318	232	49 %	100 %
109	Number of Top 200 Shared Factors Used Diversity	-0.3	45	36	73 %	100 %
110	Number of CSS Includes Technology	-0.3	14	14	46 %	100 %
111	Number of DoFollow Links Authority	-0.3	315	228	49 %	100 %
112	Page Size Kilobytes Size	-0.3	596	420	51 %	100 %
113	Number of Prices Size	-0.3	194	119	46 %	100 %
114	Search Result Has Unmodified Page Title Other	-0.29	1	1	36 %	50 %
115	Leading Variations in H1, H2, and H3 Tags Relevancy	-0.29	1	1	19 %	50 %
116	Leading Variations in H1-H6 Tags Relevancy	-0.29	1	1	19 %	50 %
117	Variations in LI Tags Relevancy	-0.29	1	1	25 %	50 %
118	Number of HTML Tags Size	-0.29	2293	1669	51 %	100 %
119	Number of Twitter Accounts Authority	-0.29	1	1	13 %	100 %
120	Variations in H1, H2, and H3 Tags Relevancy	-0.28	2	2	22 %	50 %
121	Exact Matches in H1-H6 Tags Relevancy	-0.28	2	2	21 %	50 %
122	Variations in H1-H6 Tags Relevancy	-0.28	2	2	22 %	50 %
123	Has Meta Twitter Description Authority	-0.28	1	1	21 %	100 %
124	TF/IDF Relevancy	-0.28	1	1	24 %	100 %
125	Has Canonical URL Authority	-0.28	1	1	45 %	100 %
126	Has Google Verify Technology	-0.28	1	1	12 %	100 %
127	Number of Email Addresses Trust	-0.28	3	2	30 %	100 %
128	Leading Variations in H3 Tags Relevancy	-0.27	1	1	4 %	50 %
129	Has Apple Touch Icon Technology	-0.27	1	1	23 %	50 %
130	Number of Includes Technology	-0.27	32	27	50 %	100 %
131	Number of Social Pages Authority	-0.27	3	2	33 %	100 %
132	Uses JSON-LD QuantitativeValue Other	-0.27	1	1	14 %	50 %
133	Uses Schema quantitativevalue Other	-0.27	1	1	14 %	50 %
134	Uses Schema thing Other	-0.27	1	1	5 %	50 %
135	Uses JSON-LD applicableCountry Other	-0.26	1	1	8 %	50 %
136	Uses JSON-LD encodingFormat Other	-0.26	1	1	1 %	50 %
137	Uses JSON-LD thumbnail Other	-0.26	1	1	1 %	50 %
138	Exact Matches in Questions Relevancy	-0.26	4	3	17 %	50 %
139	Uses Schema applicablecountry Other	-0.26	1	1	8 %	50 %
140	Uses Schema encodingformat Other	-0.26	1	1	1 %	50 %
141	Uses Schema pricecurrency Other	-0.26	1	1	17 %	100 %
142	Number of Instagram Pages Authority	-0.26	1	1	23 %	100 %
143	Word Count in Meta Description Size	-0.26	21	18	45 %	100 %
144	Variations in Search Result Summary Relevancy	-0.25	50	49	44 %	50 %
145	Variations in H1 and H2 Tags Relevancy	-0.25	1	1	21 %	50 %
146	Variations in Sentences Relevancy	-0.25	7	7	27 %	50 %
147	DomDetailer Majestic GOV Backlinks Authority	-0.25	238639	109878	19 %	100 %
148	Uses JSON-LD MerchantReturnPolicy Other	-0.25	1	1	13 %	50 %
149	Uses JSON-LD sku Other	-0.25	1	1	12 %	50 %
150	Uses JSON-LD Thing Other	-0.25	1	1	4 %	50 %
151	Uses Schema merchantreturnpolicy Other	-0.25	1	1	13 %	50 %
152	Uses Schema offer Other	-0.25	1	1	17 %	100 %
153	Uses Schema sku Other	-0.25	1	1	12 %	50 %
154	Has Meta Robots Other	-0.25	1	1	17 %	100 %
155	Meta Description Length Size	-0.25	118	106	45 %	100 %
156	Variations in Meta Keywords Relevancy	-0.24	4	2	4 %	100 %
157	Term Frequency Relevancy	-0.24	5	4	38 %	100 %
158	Uses JSON-LD priceCurrency Other	-0.24	1	1	15 %	100 %
159	Search Result Summary Has Ellipsis Other	-0.24	1	1	25 %	50 %
160	Search Result Summary Length Size	-0.24	147	146	44 %	50 %
161	Exact Matches in Sentences Relevancy	-0.24	7	7	27 %	50 %
162	Variations in Main Tags Relevancy	-0.24	11920	5944	26 %	100 %
163	Variations in Nav Tags Relevancy	-0.24	1	1	13 %	50 %
164	Uses JSON-LD item Other	-0.24	1	1	25 %	50 %
165	Uses JSON-LD OfferShippingDetails Other	-0.24	1	1	12 %	50 %
166	Uses JSON-LD ShippingDeliveryTime Other	-0.24	1	1	12 %	50 %
167	Uses JSON-LD unitCode Other	-0.24	1	1	12 %	50 %
168	Uses Schema aggregaterating Other	-0.24	1	1	11 %	100 %
169	Uses Schema availability Other	-0.24	1	1	31 %	50 %
170	Uses Schema shippingdeliverytime Other	-0.24	1	1	12 %	50 %
171	Uses Schema unitcode Other	-0.24	1	1	12 %	50 %
172	Is Shopify Website Technology	-0.24	1	0	12 %	100 %
173	DomDetailer Moz PA Authority	-0.24	54	27	23 %	100 %
174	Exact Matches in H1 Tags Relevancy	-0.23	1	1	11 %	50 %
175	Exact Matches making whole H1-H6 Tags Relevancy	-0.23	1	1	10 %	50 %
176	Has Form Technology	-0.23	1	1	42 %	100 %
177	Uses JSON-LD applicationCategory Other	-0.23	1	1	1 %	50 %
178	Uses JSON-LD availability Other	-0.23	1	1	28 %	50 %
179	Uses JSON-LD availableOnDevice Other	-0.23	1	1	1 %	50 %
180	Uses JSON-LD currency Other	-0.23	1	1	11 %	50 %
181	Uses JSON-LD DefinedRegion Other	-0.23	1	1	11 %	50 %
182	Uses JSON-LD MonetaryAmount Other	-0.23	1	1	11 %	50 %
183	Uses JSON-LD Offer Other	-0.23	1	1	15 %	100 %
184	Uses JSON-LD operatingSystem Other	-0.23	1	1	1 %	50 %
185	Uses JSON-LD ratingValue Other	-0.23	1	1	11 %	50 %
186	Uses JSON-LD returnFees Other	-0.23	1	1	10 %	50 %
187	Uses JSON-LD returnMethod Other	-0.23	1	1	10 %	50 %
188	Uses JSON-LD returnPolicyCategory Other	-0.23	1	1	10 %	50 %
189	Uses JSON-LD SoftwareApplication Other	-0.23	1	1	1 %	50 %
190	Uses Schema applicationcategory Other	-0.23	1	1	1 %	50 %
191	Uses Schema availableondevice Other	-0.23	1	1	1 %	50 %
192	Uses Schema operatingsystem Other	-0.23	1	1	1 %	50 %
193	Uses Schema pricevaliduntil Other	-0.23	1	1	18 %	50 %
194	Uses Schema returnfees Other	-0.23	1	1	10 %	50 %
195	Uses Schema returnmethod Other	-0.23	1	1	10 %	50 %
196	Uses Schema returnpolicycategory Other	-0.23	1	1	10 %	50 %
197	Uses Schema softwareapplication Other	-0.23	1	1	1 %	50 %
198	Has Email Trust	-0.23	1	1	30 %	100 %
199	Number of Meta Keywords Relevancy	-0.23	3	2	73 %	100 %
200	Exact Matches making whole A Tags Relevancy	-0.22	1	1	7 %	100 %

Measures 150507 SEO Factors

148785 Built-In SEO Factors

139583 On-page SEO Factors

9202 Google Maps SEO Factors for Local SEO

1722 SEO Factors from APIs

147 API SEO Factors for off-page SEO like backlinks and referring domains.

1575 Technology Stack SEO Factors

SEO Factor Class

SEO Factor Type

Compare Top SEO Factors By Month

TOP SEO Factors for 2026-05 previous