200 Top SEO Ranking Factors September 2026

TOP SEO Factors for 2026-09 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 Referring Domains Authority	-0.28	627	49	32 %	43 %
2	Number of Do Follow Backlinks Authority	-0.27	133206	2200	28 %	42 %
3	Number of Backlinks Authority	-0.27	134088	2283	32 %	44 %
4	Number of No Follow Backlinks Authority	-0.25	5365	150	22 %	44 %
5	Number of Unique LSI Words Used Diversity	-0.24	908	250	77 %	78 %
6	Load Time Milliseconds Performance	-0.23	21244	2073	78 %	86 %
7	Search Result Domain is .com, .net, or .org Other	-0.22	1	1	7 %	74 %
8	Search Result Domain is .com Other	-0.22	1	1	7 %	73 %
9	Number of Includes Technology	-0.21	54	23	69 %	79 %
10	Number of Top 200 Shared Factors Used Diversity	-0.21	51	36	92 %	85 %
11	Has JSON-LD Schema Markup Relevancy	-0.21	1	1	46 %	76 %
12	Number of Images Size	-0.21	81	26	64 %	87 %
13	Number of Top 100 Shared Factors Used Diversity	-0.21	38	27	92 %	84 %
14	Number of Top 50 Shared Factors Used Diversity	-0.21	16	11	91 %	83 %
15	Number of Facebook Pages Authority	-0.2	10	2	46 %	84 %
16	Unabridged Word Count Size	-0.2	12848	1794	78 %	89 %
17	Word Count Size	-0.2	10144	1434	78 %	88 %
18	Number of P Tags Size	-0.2	204	38	64 %	86 %
19	Has Meta Charset Technology	-0.2	1	1	65 %	83 %
20	Clean Text Kilobytes Size	-0.2	82	12	64 %	90 %
21	Number of Images with ALT Text Size	-0.2	67	18	59 %	88 %
22	Number of H1 Tags Size	-0.2	4	1	60 %	83 %
23	Number of H2 Tags Size	-0.2	21	7	59 %	85 %
24	Number of CSS Includes Technology	-0.2	21	8	63 %	73 %
25	Number of Heading Tags Size	-0.2	70	20	65 %	88 %
26	Variations in H1, H2, and H3 Tags Relevancy	-0.19	211	8	52 %	85 %
27	Variations in P Tags Relevancy	-0.19	3443	56	55 %	86 %
28	Variations in H1-H6 Tags Relevancy	-0.19	267	10	53 %	85 %
29	Number of HTML Tags Size	-0.19	2555	885	78 %	85 %
30	Variations in H1 and H2 Tags Relevancy	-0.19	76	5	50 %	82 %
31	Search Result Number of Dirs in Path Other	-0.19	4	2	69 %	76 %
32	Number of DoFollow Links Authority	-0.19	333	105	71 %	84 %
33	Number of Links Authority	-0.19	336	107	71 %	84 %
34	Average Words Per Sentence Size	-0.19	242	26	68 %	78 %
35	Variations in Div Tags Relevancy	-0.19	31244	360	63 %	86 %
36	Number of HTTPS Links Authority	-0.19	335	106	71 %	84 %
37	Number of Unique Variations Used Diversity	-0.19	48	13	72 %	77 %
38	Variations in LI Tags Relevancy	-0.18	1981	34	53 %	83 %
39	Number of Internal Links Authority	-0.18	312	95	70 %	83 %
40	Number of Factors Used Diversity	-0.18	396	174	93 %	80 %
41	Number of Instagram Pages Authority	-0.18	13	2	35 %	83 %
42	Entities in Sentences Relevancy	-0.18	1891	132	58 %	93 %
43	LSI Words in Sentences Relevancy	-0.18	3764	611	58 %	94 %
44	Entities in H2 Tags	-0.18	46	6	43 %	93 %
45	Number of Distinct Entities Used Diversity	-0.18	60	22	66 %	92 %
46	Variations in A Tags Relevancy	-0.18	4844	51	53 %	81 %
47	Number of HTML Comments Size	-0.18	492	57	60 %	83 %
48	Number of Images without ALT Text Size	-0.18	36	8	46 %	86 %
49	Variations in Search Result Document File Name Relevancy	-0.18	7	1	38 %	84 %
50	Entities in the HTML Tag Relevancy	-0.18	1892	135	62 %	92 %
51	Number of External Links Authority	-0.18	38	12	66 %	86 %
52	Variations in H2 Tags Relevancy	-0.18	71	4	42 %	82 %
53	Variations in H1 Tags Relevancy	-0.18	11	1	43 %	77 %
54	Flesch Kincaid Reading Grade Level Other	-0.18	6	1	88 %	84 %
55	Number of H3 Tags Size	-0.17	37	9	51 %	86 %
56	Number of LinkedIn Pages Authority	-0.17	4	1	24 %	80 %
57	Number of DoFollow External Links Authority	-0.17	36	11	65 %	85 %
58	Variations in Body Tags Relevancy	-0.17	97091	803	70 %	81 %
59	Search Result Host Length Size	-0.17	22	16	77 %	77 %
60	Leading Variations in H1, H2, and H3 Tags Relevancy	-0.17	11	2	37 %	81 %
61	Search Result Domain Length Size	-0.17	22	16	77 %	77 %
62	Leading Variations in H1-H6 Tags Relevancy	-0.17	12	2	39 %	82 %
63	Variation Count in Top 30KB Relevancy	-0.17	6580	80	57 %	78 %
64	Variations in HTML Tags Relevancy	-0.17	97091	789	68 %	83 %
65	Has Form Technology	-0.17	1	1	39 %	72 %
66	Number of Facebook Accounts Authority	-0.17	3	1	20 %	78 %
67	Variations in Sentences Relevancy	-0.17	3407	73	62 %	82 %
68	Variations in ALT Attributes Relevancy	-0.17	158	8	38 %	81 %
69	Search Result Uses HTTPS Other	-0.17	1	1	76 %	73 %
70	Percentage of DoFollow External Links Authority	-0.17	38	12	64 %	75 %
71	Uses JSON-LD name Other	-0.17	1	1	48 %	71 %
72	Number of Forms Technology	-0.17	12	2	40 %	77 %
73	Entities in Title Tag Relevancy	-0.17	14	3	56 %	91 %
74	Entities in H1 Tags	-0.16	5	2	43 %	89 %
75	LSI Words in H2 Tags Relevancy	-0.16	69	17	47 %	90 %
76	Number of Questions In Headings Size	-0.16	9	2	34 %	82 %
77	Variations in Span Tags Relevancy	-0.16	729	15	42 %	84 %
78	Number Of JSON-LD Types Relevancy	-0.16	77	17	49 %	83 %
79	Number of Social Accounts Authority	-0.16	5	1	31 %	79 %
80	Number of Social Pages Authority	-0.16	18	5	52 %	82 %
81	Percentage of DoFollow Links Authority	-0.16	99	79	72 %	75 %
82	Term Frequency Relevancy	-0.16	6	3	68 %	78 %
83	Entities in H3 Tags	-0.16	63	6	36 %	93 %
84	Variations in Search Result URL Path Relevancy	-0.16	9	1	39 %	82 %
85	Variations in Search Result Link Text Relevancy	-0.16	14	2	75 %	69 %
86	Is Home Page Other	-0.16	1	1	15 %	55 %
87	Headings Has Question Other	-0.16	1	1	34 %	77 %
88	Variations in Search Result Display URL Relevancy	-0.16	14	2	75 %	70 %
89	Variations in A Tag HREF Attributes Relevancy	-0.16	2213	54	47 %	85 %
90	Variations in Main Tags Relevancy	-0.16	18789	194	32 %	80 %
91	Number of Sentences Size	-0.16	1102	137	75 %	82 %
92	Has Entities in H2 Tags Relevancy	-0.16	1	1	44 %	87 %
93	Variations in H3 Tags Relevancy	-0.16	135	4	33 %	84 %
94	Percentage of DoFollow Internal Links Authority	-0.16	91	66	70 %	70 %
95	Variations in OpenGraph Title Relevancy	-0.16	10	1	46 %	62 %
96	Uses JSON-LD url Other	-0.16	1	1	43 %	72 %
97	Variations in Distinct A Tag HREF Attributes Relevancy	-0.15	1343	34	48 %	85 %
98	Variations in the Title Tag Relevancy	-0.15	31	2	54 %	72 %
99	Has Meta Viewport Technology	-0.15	1	1	74 %	72 %
100	Inline CSS Kilobytes Size	-0.15	154	53	59 %	82 %
101	Page Size Kilobytes Size	-0.15	933	281	77 %	61 %
102	Variations in Nav Tags Relevancy	-0.15	9938	79	39 %	80 %
103	Number of Twitter Accounts Authority	-0.15	2	1	14 %	77 %
104	Is Article Page Other	-0.15	1	1	37 %	67 %
105	Has Meta Robots Other	-0.15	1	1	25 %	73 %
106	Has Entities in H1 Tags Relevancy	-0.15	1	1	45 %	86 %
107	LSI Words in H1 Tags Relevancy	-0.15	13	4	47 %	87 %
108	Search Result Summary Length Size	-0.15	261	156	92 %	69 %
109	Variations in Meta Description Relevancy	-0.15	44	2	49 %	72 %
110	Number of Absolute URLs Authority	-0.15	1127	236	76 %	70 %
111	Variations in First 100 Words Relevancy	-0.15	187	9	55 %	79 %
112	Variations in Search Result URL Relevancy	-0.15	20	2	48 %	76 %
113	Uses JSON-LD description Other	-0.15	1	1	38 %	68 %
114	Leading Variations in H2 Tags Relevancy	-0.15	4	1	21 %	79 %
115	LSI Words in H3 Tags Relevancy	-0.15	72	18	41 %	90 %
116	Has US Phone Number Trust	-0.15	1	1	30 %	70 %
117	Has Apple Touch Icon Technology	-0.15	1	1	44 %	75 %
118	Leading Variations in H1 Tags Relevancy	-0.15	1	1	21 %	75 %
119	Variations in Section Tags Relevancy	-0.15	1620	33	34 %	83 %
120	Variations in Absolute URLs Relevancy	-0.15	6009	87	51 %	85 %
121	Has Contact Page Trust	-0.15	1	1	50 %	62 %
122	Variation Density in Top 30KB Relevancy	-0.15	333	6	55 %	71 %
123	Variations in Footer Tags Relevancy	-0.15	4986	38	35 %	78 %
124	Number of Questions In H2 Tags Size	-0.15	4	1	21 %	81 %
125	Number of Questions In H3 Tags Size	-0.14	5	2	18 %	77 %
126	Number Of Claimed Brands Other	-0.14	38	3	21 %	76 %
127	Number of JavaScript Includes Technology	-0.14	40	16	72 %	78 %
128	Variations in OpenGraph Description Relevancy	-0.14	27	2	44 %	69 %
129	Has Privacy Policy Trust	-0.14	1	1	46 %	64 %
130	Variations in the Canonical URL Relevancy	-0.14	44	2	42 %	77 %
131	Title Word Count Size	-0.14	29	8	76 %	67 %
132	Inline JavaScript Kilobytes Size	-0.14	557	114	72 %	56 %
133	Uses JSON-LD datePublished Other	-0.14	1	1	28 %	68 %
134	Clean Keyword Density in the HTML Tag Relevancy	-0.14	204	6	59 %	70 %
135	Title Length Size	-0.14	240	54	76 %	66 %
136	Variations in Strong Tags Relevancy	-0.14	43	3	24 %	80 %
137	Number of Email Addresses Trust	-0.14	19	4	39 %	75 %
138	Number of US Phone Numbers Trust	-0.14	108	8	31 %	81 %
139	Uses Schema datemodified Other	-0.14	1	1	27 %	68 %
140	Number of H4 Tags Size	-0.14	12	3	28 %	78 %
141	Is OpenGraph Type Article Technology	-0.14	1	1	26 %	61 %
142	Uses Schema webpage Other	-0.14	1	1	29 %	67 %
143	Exact Matches in the HTML Tag Relevancy	-0.14	324	9	24 %	82 %
144	Uses JSON-LD WebPage Other	-0.14	1	1	28 %	66 %
145	Variations in Script Tags Relevancy	-0.14	29554	237	57 %	75 %
146	Entities in Meta Description Tag Relevancy	-0.14	17	3	49 %	85 %
147	Number of Meta Generator Tags Technology	-0.14	2	1	29 %	73 %
148	Leading Variations in Title Tag Relevancy	-0.14	1	1	26 %	74 %
149	Uses JSON-LD mainEntity Other	-0.14	1	1	1 %	12 %
150	LSI Words in Title Tag Relevancy	-0.14	28	5	58 %	84 %
151	Variations in Article Tags Relevancy	-0.14	668	20	21 %	78 %
152	Uses JSON-LD ImageObject Other	-0.14	1	1	27 %	71 %
153	Number of Questions Size	-0.14	55	13	60 %	70 %
154	Uses Schema organization Other	-0.14	1	1	29 %	64 %
155	Uses Schema name Other	-0.14	1	1	55 %	53 %
156	Uses JSON-LD dateModified Other	-0.14	1	1	26 %	69 %
157	Number of Prices Size	-0.14	484	106	62 %	77 %
158	Has Entities in H3 Tags Relevancy	-0.14	1	1	36 %	85 %
159	Number of Nofollow Links Authority	-0.14	23	3	18 %	79 %
160	Has Schema Markup Relevancy	-0.13	1	1	57 %	58 %
161	Has Email Trust	-0.13	1	1	39 %	67 %
162	Word Count in Meta Description Size	-0.13	54	18	62 %	66 %
163	Uses Schema website Other	-0.13	1	1	30 %	66 %
164	TF/IDF Relevancy	-0.13	1	1	50 %	73 %
165	Meta Description Length Size	-0.13	394	114	62 %	65 %
166	Number of NoFollow External Links Authority	-0.13	10	2	13 %	79 %
167	LSI Words in Meta Description Tag Relevancy	-0.13	29	9	50 %	82 %
168	Uses JSON-LD Organization Other	-0.13	1	1	28 %	68 %
169	Has FavIcon Technology	-0.13	1	1	68 %	61 %
170	Exact Matches in Top 30KB Relevancy	-0.13	9	2	15 %	77 %
171	Variations making whole A Tags Relevancy	-0.13	22	2	25 %	77 %
172	Has RSS Link Authority	-0.13	1	1	23 %	65 %
173	Has Meta Description Relevancy	-0.13	1	1	60 %	58 %
174	Uses JSON-LD BreadcrumbList Other	-0.13	1	1	31 %	66 %
175	Variations in I Tags Relevancy	-0.13	148	5	17 %	80 %
176	Has Canonical URL Authority	-0.13	1	1	65 %	61 %
177	Uses JSON-LD ListItem Other	-0.13	1	1	32 %	66 %
178	Has XMLRPC Technology	-0.13	1	1	22 %	65 %
179	Uses Schema url Other	-0.13	1	1	51 %	55 %
180	Percentage of NoFollow Links Authority	-0.13	7	2	17 %	77 %
181	Search Result URL Length Size	-0.13	206	66	91 %	42 %
182	Variations Making Whole LI Tags Relevancy	-0.13	7	1	22 %	77 %
183	Has OpenGraph Type Relevancy	-0.13	1	1	56 %	60 %
184	Uses JSON-LD WebSite Other	-0.13	1	1	28 %	69 %
185	Variations in Search Result Summary Relevancy	-0.13	59	3	75 %	69 %
186	Entities in H4 Tags	-0.13	10	2	15 %	89 %
187	Uses JSON-LD SearchAction Other	-0.13	1	1	20 %	66 %
188	Uses Schema searchaction Other	-0.13	1	1	20 %	65 %
189	Exact Matches in H1-H6 Tags Relevancy	-0.13	8	1	15 %	82 %
190	Variations Making Whole Span Tags Relevancy	-0.13	24	1	18 %	77 %
191	Has OpenGraph Image Relevancy	-0.13	1	1	48 %	54 %
192	Has Terms of Service Trust	-0.13	1	1	30 %	56 %
193	Percentage of NoFollow External Links Authority	-0.13	5	1	12 %	78 %
194	Is Store Page Other	-0.13	1	1	35 %	66 %
195	Uses Schema inlanguage Other	-0.13	1	1	27 %	65 %
196	Uses Schema contenturl Other	-0.12	1	1	20 %	67 %
197	Uses JSON-LD inLanguage Other	-0.12	1	1	27 %	67 %
198	Variations in H4-H6 Tags Relevancy	-0.12	57	2	16 %	79 %
199	Uses Schema image Other	-0.12	1	1	18 %	66 %
200	Uses Schema description Other	-0.12	1	1	45 %	50 %

Measures 154566 SEO Factors

152844 Built-In SEO Factors

143617 On-page SEO Factors

9227 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 2026-09 previous